A unique string used to identify a hosted zone.

A string used to identify a key-signing key (KSK). Name can include numbers, letters, and underscores (_). Name must be unique for each key-signing key in the same hosted zone.

The response's http status code.

Undocumented member.

Optional: A comment about the association request.

The ID of the private hosted zone that you want to associate an Amazon VPC with.

Note that you can't associate a VPC with a hosted zone that doesn't have an existing VPC association.

A complex type that contains information about the VPC that you want to associate with a private hosted zone.

The response's http status code.

A complex type that describes the changes made to your hosted zone.

A sequential counter that Amazon Route 53 sets to 1 when you create a collection and increments it by 1 each time you update the collection.

We recommend that you use ListCidrCollection to get the current value of CollectionVersion for the collection that you want to update, and then include that value with the change request. This prevents Route 53 from overwriting an intervening update:

• If the value in the request matches the value of CollectionVersion in the collection, Route 53 updates the collection.
• If the value of CollectionVersion in the collection is greater than the value in the request, the collection was changed after you got the version number. Route 53 does not update the collection, and it returns a CidrCollectionVersionMismatch error.

The UUID of the CIDR collection to update.

Information about changes to a CIDR collection.

The response's http status code.

The ID that is returned by ChangeCidrCollection. You can use it as input to GetChange to see if a CIDR collection change has propagated or not.

The ID of the hosted zone that contains the resource record sets that you want to change.

A complex type that contains an optional comment and the Changes element.

The response's http status code.

A complex type that contains information about changes made to your hosted zone.

This element contains an ID that you use when performing a GetChange action to get detailed information about the change.

A complex type that contains a list of the tags that you want to add to the specified health check or hosted zone and/or the tags that you want to edit Value for.

You can add a maximum of 10 tags to a health check or a hosted zone.

A complex type that contains a list of the tags that you want to delete from the specified health check or hosted zone. You can specify up to 10 keys.

The type of the resource.

• The resource type for health checks is healthcheck.
• The resource type for hosted zones is hostedzone.

The ID of the resource for which you want to add, change, or delete tags.

The response's http status code.

A unique identifier for the account that can be used to reference the collection from other API calls.

A client-specific token that allows requests to be securely retried so that the intended outcome will only occur once, retries receive a similar response, and there are no additional edge cases to handle.

A complex type that contains information about the CIDR collection.

A unique URL that represents the location for the CIDR collection.

The response's http status code.

A unique string that identifies the request and that allows you to retry a failed CreateHealthCheck request without the risk of creating two identical health checks:

• If you send a CreateHealthCheck request with the same CallerReference and settings as a previous request, and if the health check doesn't exist, Amazon Route 53 creates the health check. If the health check does exist, Route 53 returns the settings for the existing health check.
• If you send a CreateHealthCheck request with the same CallerReference as a deleted health check, regardless of the settings, Route 53 returns a HealthCheckAlreadyExists error.
• If you send a CreateHealthCheck request with the same CallerReference as an existing health check but with different settings, Route 53 returns a HealthCheckAlreadyExists error.
• If you send a CreateHealthCheck request with a unique CallerReference but settings identical to an existing health check, Route 53 creates the health check.

A complex type that contains settings for a new health check.

The response's http status code.

A complex type that contains identifying information about the health check.

The unique URL representing the new health check.

If you want to associate a reusable delegation set with this hosted zone, the ID that Amazon Route 53 assigned to the reusable delegation set when you created it. For more information about reusable delegation sets, see CreateReusableDelegationSet.

(Optional) A complex type that contains the following optional values:

• For public and private hosted zones, an optional comment
• For private hosted zones, an optional PrivateZone element

If you don't specify a comment or the PrivateZone element, omit HostedZoneConfig and the other elements.

(Private hosted zones only) A complex type that contains information about the Amazon VPC that you're associating with this hosted zone.

You can specify only one Amazon VPC when you create a private hosted zone. If you are associating a VPC with a hosted zone with this request, the paramaters VPCId and VPCRegion are also required.

To associate additional Amazon VPCs with the hosted zone, use AssociateVPCWithHostedZone after you create a hosted zone.

The name of the domain. Specify a fully qualified domain name, for example, www.example.com. The trailing dot is optional; Amazon Route 53 assumes that the domain name is fully qualified. This means that Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.

If you're creating a public hosted zone, this is the name you have registered with your DNS registrar. If your domain name is registered with a registrar other than Route 53, change the name servers for your domain to the set of NameServers that CreateHostedZone returns in DelegationSet.

A unique string that identifies the request and that allows failed CreateHostedZone requests to be retried without the risk of executing the operation twice. You must use a unique CallerReference string every time you submit a CreateHostedZone request. CallerReference can be any unique string, for example, a date/time stamp.

A complex type that contains information about an Amazon VPC that you associated with this hosted zone.

The response's http status code.

A complex type that contains general information about the hosted zone.

A complex type that contains information about the CreateHostedZone request.

A complex type that describes the name servers for this hosted zone.

The unique URL representing the new hosted zone.

A unique string that identifies the request.

The unique string (ID) used to identify a hosted zone.

The Amazon resource name (ARN) for a customer managed key in Key Management Service (KMS). The KeyManagementServiceArn must be unique for each key-signing key (KSK) in a single hosted zone. To see an example of KeyManagementServiceArn that grants the correct permissions for DNSSEC, scroll down to Example.

You must configure the customer managed customer managed key as follows:

Status

Enabled

Key spec

ECC_NIST_P256

Key usage

Sign and verify

Key policy

The key policy must give permission for the following actions:

• DescribeKey
• GetPublicKey
• Sign

The key policy must also include the Amazon Route 53 service in the principal for your account. Specify the following:

• "Service": "dnssec-route53.amazonaws.com"

For more information about working with a customer managed key in KMS, see Key Management Service concepts.

A string used to identify a key-signing key (KSK). Name can include numbers, letters, and underscores (_). Name must be unique for each key-signing key in the same hosted zone.

A string specifying the initial status of the key-signing key (KSK). You can set the value to ACTIVE or INACTIVE.

The response's http status code.

Undocumented member.

The key-signing key (KSK) that the request creates.

The unique URL representing the new key-signing key (KSK).

The ID of the hosted zone that you want to log queries for. You can log queries only for public hosted zones.

The Amazon Resource Name (ARN) for the log group that you want to Amazon Route 53 to send query logs to. This is the format of the ARN:

arn:aws:logs:region:account-id:log-group:log_group_name

To get the ARN for a log group, you can use the CloudWatch console, the DescribeLogGroups API action, the describe-log-groups command, or the applicable command in one of the Amazon Web Services SDKs.

The response's http status code.

A complex type that contains the ID for a query logging configuration, the ID of the hosted zone that you want to log queries for, and the ARN for the log group that you want Amazon Route 53 to send query logs to.

The unique URL representing the new query logging configuration.

If you want to mark the delegation set for an existing hosted zone as reusable, the ID for that hosted zone.

A unique string that identifies the request, and that allows you to retry failed CreateReusableDelegationSet requests without the risk of executing the operation twice. You must use a unique CallerReference string every time you submit a CreateReusableDelegationSet request. CallerReference can be any unique string, for example a date/time stamp.

The response's http status code.

A complex type that contains name server information.

The unique URL representing the new reusable delegation set.

(Optional) Any comments that you want to include about the traffic policy.

The name of the traffic policy.

The definition of this traffic policy in JSON format. For more information, see Traffic Policy Document Format.

The response's http status code.

A complex type that contains settings for the new traffic policy.

A unique URL that represents a new traffic policy.

The ID of the hosted zone that you want Amazon Route 53 to create resource record sets in by using the configuration in a traffic policy.

The domain name (such as example.com) or subdomain name (such as www.example.com) for which Amazon Route 53 responds to DNS queries by using the resource record sets that Route 53 creates for this traffic policy instance.

(Optional) The TTL that you want Amazon Route 53 to assign to all of the resource record sets that it creates in the specified hosted zone.

The ID of the traffic policy that you want to use to create resource record sets in the specified hosted zone.

The version of the traffic policy that you want to use to create resource record sets in the specified hosted zone.

The response's http status code.

A complex type that contains settings for the new traffic policy instance.

A unique URL that represents a new traffic policy instance.

The comment that you specified in the CreateTrafficPolicyVersion request, if any.

The ID of the traffic policy for which you want to create a new version.

The definition of this version of the traffic policy, in JSON format. You specified the JSON in the CreateTrafficPolicyVersion request. For more information about the JSON format, see CreateTrafficPolicy.

The response's http status code.

A complex type that contains settings for the new version of the traffic policy.

A unique URL that represents a new traffic policy version.

The ID of the private hosted zone that you want to authorize associating a VPC with.

A complex type that contains the VPC ID and region for the VPC that you want to authorize associating with your hosted zone.

The response's http status code.

The ID of the hosted zone that you authorized associating a VPC with.

The VPC that you authorized associating with a hosted zone.

A unique string used to identify a hosted zone.

A string used to identify a key-signing key (KSK).

The response's http status code.

Undocumented member.

The UUID of the collection to delete.

The response's http status code.

The ID of the health check that you want to delete.

The response's http status code.

The ID of the hosted zone you want to delete.

The response's http status code.

A complex type that contains the ID, the status, and the date and time of a request to delete a hosted zone.

A unique string used to identify a hosted zone.

A string used to identify a key-signing key (KSK).

The response's http status code.

Undocumented member.

The ID of the configuration that you want to delete.

The response's http status code.

The ID of the reusable delegation set that you want to delete.

The response's http status code.

The ID of the traffic policy that you want to delete.

The version number of the traffic policy that you want to delete.

The response's http status code.

The ID of the traffic policy instance that you want to delete.

When you delete a traffic policy instance, Amazon Route 53 also deletes all of the resource record sets that were created when you created the traffic policy instance.

The response's http status code.

When removing authorization to associate a VPC that was created by one Amazon Web Services account with a hosted zone that was created with a different Amazon Web Services account, the ID of the hosted zone.

When removing authorization to associate a VPC that was created by one Amazon Web Services account with a hosted zone that was created with a different Amazon Web Services account, a complex type that includes the ID and region of the VPC.

The response's http status code.

A unique string used to identify a hosted zone.

The response's http status code.

Undocumented member.

Optional: A comment about the disassociation request.

The ID of the private hosted zone that you want to disassociate a VPC from.

A complex type that contains information about the VPC that you're disassociating from the specified hosted zone.

The response's http status code.

A complex type that describes the changes made to the specified private hosted zone.

A unique string used to identify a hosted zone.

The response's http status code.

Undocumented member.

The limit that you want to get. Valid values include the following:

• MAX_HEALTH_CHECKS_BY_OWNER: The maximum number of health checks that you can create using the current account.
• MAX_HOSTED_ZONES_BY_OWNER: The maximum number of hosted zones that you can create using the current account.
• MAX_REUSABLE_DELEGATION_SETS_BY_OWNER: The maximum number of reusable delegation sets that you can create using the current account.
• MAX_TRAFFIC_POLICIES_BY_OWNER: The maximum number of traffic policies that you can create using the current account.
• MAX_TRAFFIC_POLICY_INSTANCES_BY_OWNER: The maximum number of traffic policy instances that you can create using the current account. (Traffic policy instances are referred to as traffic flow policy records in the Amazon Route 53 console.)

The response's http status code.

The current setting for the specified limit. For example, if you specified MAX_HEALTH_CHECKS_BY_OWNER for the value of Type in the request, the value of Limit is the maximum number of health checks that you can create using the current account.

The current number of entities that you have created of the specified type. For example, if you specified MAX_HEALTH_CHECKS_BY_OWNER for the value of Type in the request, the value of Count is the current number of health checks that you have created using the current account.

The ID of the change batch request. The value that you specify here is the value that ChangeResourceRecordSets returned in the Id element when you submitted the request.

The response's http status code.

A complex type that contains information about the specified change batch.

The response's http status code.

A complex type that contains sorted list of IP ranges in CIDR format for Amazon Route 53 health checkers.

A unique string used to identify a hosted zone.

The response's http status code.

A string repesenting the status of DNSSEC.

The key-signing keys (KSKs) in your account.

For geolocation resource record sets, a two-letter abbreviation that identifies a continent. Amazon Route 53 supports the following continent codes:

• AF: Africa
• AN: Antarctica
• AS: Asia
• EU: Europe
• OC: Oceania
• NA: North America
• SA: South America

Amazon Route 53 uses the two-letter country codes that are specified in ISO standard 3166-1 alpha-2.

The code for the subdivision, such as a particular state within the United States. For a list of US state abbreviations, see Appendix B: Two–Letter State and Possession Abbreviations on the United States Postal Service website. For a list of all supported subdivision codes, use the ListGeoLocations API.

The response's http status code.

A complex type that contains the codes and full continent, country, and subdivision names for the specified geolocation code.

The identifier that Amazon Route 53 assigned to the health check when you created it. When you add or update a resource record set, you use this value to specify which health check to use. The value can be up to 64 characters long.

The response's http status code.

A complex type that contains information about one health check that is associated with the current Amazon Web Services account.

The response's http status code.

The number of health checks associated with the current Amazon Web Services account.

The ID for the health check for which you want the last failure reason. When you created the health check, CreateHealthCheck returned the ID in the response, in the HealthCheckId element.

If you want to get the last failure reason for a calculated health check, you must use the Amazon Route 53 console or the CloudWatch console. You can't use GetHealthCheckLastFailureReason for a calculated health check.

The response's http status code.

A list that contains one Observation element for each Amazon Route 53 health checker that is reporting a last failure reason.

The ID for the health check that you want the current status for. When you created the health check, CreateHealthCheck returned the ID in the response, in the HealthCheckId element.

If you want to check the status of a calculated health check, you must use the Amazon Route 53 console or the CloudWatch console. You can't use GetHealthCheckStatus to get the status of a calculated health check.

The response's http status code.

A list that contains one HealthCheckObservation element for each Amazon Route 53 health checker that is reporting a status about the health check endpoint.

The ID of the hosted zone that you want to get information about.

A complex type that lists the Amazon Route 53 name servers for the specified hosted zone.

A complex type that contains information about the VPCs that are associated with the specified hosted zone.

The response's http status code.

A complex type that contains general information about the specified hosted zone.

The response's http status code.

The total number of public and private hosted zones that are associated with the current Amazon Web Services account.

The limit that you want to get. Valid values include the following:

• MAX_RRSETS_BY_ZONE: The maximum number of records that you can create in the specified hosted zone.
• MAX_VPCS_ASSOCIATED_BY_ZONE: The maximum number of Amazon VPCs that you can associate with the specified private hosted zone.

The ID of the hosted zone that you want to get a limit for.

The response's http status code.

The current setting for the specified limit. For example, if you specified MAX_RRSETS_BY_ZONE for the value of Type in the request, the value of Limit is the maximum number of records that you can create in the specified hosted zone.

The current number of entities that you have created of the specified type. For example, if you specified MAX_RRSETS_BY_ZONE for the value of Type in the request, the value of Count is the current number of records that you have created in the specified hosted zone.

The ID of the configuration for DNS query logging that you want to get information about.

The response's http status code.

A complex type that contains information about the query logging configuration that you specified in a GetQueryLoggingConfig request.

The ID of the reusable delegation set that you want to get a list of name servers for.

The response's http status code.

A complex type that contains information about the reusable delegation set.

Specify MAX_ZONES_BY_REUSABLE_DELEGATION_SET to get the maximum number of hosted zones that you can associate with the specified reusable delegation set.

The ID of the delegation set that you want to get the limit for.

The response's http status code.

The current setting for the limit on hosted zones that you can associate with the specified reusable delegation set.

The current number of hosted zones that you can associate with the specified reusable delegation set.

The ID of the traffic policy that you want to get information about.

The version number of the traffic policy that you want to get information about.

The response's http status code.

A complex type that contains settings for the specified traffic policy.

The ID of the traffic policy instance that you want to get information about.

The response's http status code.

A complex type that contains settings for the traffic policy instance.

The response's http status code.

The number of traffic policy instances that are associated with the current Amazon Web Services account.

The name of the CIDR collection location.

Maximum number of results you want returned.

An opaque pagination token to indicate where the service is to begin enumerating results.

The UUID of the CIDR collection.

A complex type that contains information about the CIDR blocks.

An opaque pagination token to indicate where the service is to begin enumerating results.

If no value is provided, the listing of results starts from the beginning.

The response's http status code.

The maximum number of CIDR collections to return in the response.

An opaque pagination token to indicate where the service is to begin enumerating results.

If no value is provided, the listing of results starts from the beginning.

A complex type with information about the CIDR collection.

An opaque pagination token to indicate where the service is to begin enumerating results.

If no value is provided, the listing of results starts from the beginning.

The response's http status code.

The maximum number of CIDR collection locations to return in the response.

An opaque pagination token to indicate where the service is to begin enumerating results.

If no value is provided, the listing of results starts from the beginning.

The CIDR collection ID.

A complex type that contains information about the list of CIDR locations.

An opaque pagination token to indicate where the service is to begin enumerating results.

If no value is provided, the listing of results starts from the beginning.

The response's http status code.

(Optional) The maximum number of geolocations to be included in the response body for this request. If more than maxitems geolocations remain to be listed, then the value of the IsTruncated element in the response is true.

The code for the continent with which you want to start listing locations that Amazon Route 53 supports for geolocation. If Route 53 has already returned a page or more of results, if IsTruncated is true, and if NextContinentCode from the previous response has a value, enter that value in startcontinentcode to return the next page of results.

Include startcontinentcode only if you want to list continents. Don't include startcontinentcode when you're listing countries or countries with their subdivisions.

The code for the country with which you want to start listing locations that Amazon Route 53 supports for geolocation. If Route 53 has already returned a page or more of results, if IsTruncated is true, and if NextCountryCode from the previous response has a value, enter that value in startcountrycode to return the next page of results.

The code for the state of the United States with which you want to start listing locations that Amazon Route 53 supports for geolocation. If Route 53 has already returned a page or more of results, if IsTruncated is true, and if NextSubdivisionCode from the previous response has a value, enter that value in startsubdivisioncode to return the next page of results.

To list subdivisions (U.S. states), you must include both startcountrycode and startsubdivisioncode.

If IsTruncated is true, you can make a follow-up request to display more locations. Enter the value of NextContinentCode in the startcontinentcode parameter in another ListGeoLocations request.

If IsTruncated is true, you can make a follow-up request to display more locations. Enter the value of NextCountryCode in the startcountrycode parameter in another ListGeoLocations request.

If IsTruncated is true, you can make a follow-up request to display more locations. Enter the value of NextSubdivisionCode in the startsubdivisioncode parameter in another ListGeoLocations request.

The response's http status code.

A complex type that contains one GeoLocationDetails element for each location that Amazon Route 53 supports for geolocation.

A value that indicates whether more locations remain to be listed after the last location in this response. If so, the value of IsTruncated is true. To get more values, submit another request and include the values of NextContinentCode, NextCountryCode, and NextSubdivisionCode in the startcontinentcode, startcountrycode, and startsubdivisioncode, as applicable.

The value that you specified for MaxItems in the request.

If the value of IsTruncated in the previous response was true, you have more health checks. To get another group, submit another ListHealthChecks request.

For the value of marker, specify the value of NextMarker from the previous response, which is the ID of the first health check that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was false, there are no more health checks to get.

The maximum number of health checks that you want ListHealthChecks to return in response to the current request. Amazon Route 53 returns a maximum of 100 items. If you set MaxItems to a value greater than 100, Route 53 returns only the first 100 health checks.

If IsTruncated is true, the value of NextMarker identifies the first health check that Amazon Route 53 returns if you submit another ListHealthChecks request and specify the value of NextMarker in the marker parameter.

The response's http status code.

A complex type that contains one HealthCheck element for each health check that is associated with the current Amazon Web Services account.

For the second and subsequent calls to ListHealthChecks, Marker is the value that you specified for the marker parameter in the previous request.

A flag that indicates whether there are more health checks to be listed. If the response was truncated, you can get the next group of health checks by submitting another ListHealthChecks request and specifying the value of NextMarker in the marker parameter.

The value that you specified for the maxitems parameter in the call to ListHealthChecks that produced the current response.

If you're using reusable delegation sets and you want to list all of the hosted zones that are associated with a reusable delegation set, specify the ID of that reusable delegation set.

If the value of IsTruncated in the previous response was true, you have more hosted zones. To get more hosted zones, submit another ListHostedZones request.

For the value of marker, specify the value of NextMarker from the previous response, which is the ID of the first hosted zone that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was false, there are no more hosted zones to get.

(Optional) The maximum number of hosted zones that you want Amazon Route 53 to return. If you have more than maxitems hosted zones, the value of IsTruncated in the response is true, and the value of NextMarker is the hosted zone ID of the first hosted zone that Route 53 will return if you submit another request.

For the second and subsequent calls to ListHostedZones, Marker is the value that you specified for the marker parameter in the request that produced the current response.

If IsTruncated is true, the value of NextMarker identifies the first hosted zone in the next group of hosted zones. Submit another ListHostedZones request, and specify the value of NextMarker from the response in the marker parameter.

This element is present only if IsTruncated is true.

The response's http status code.

A complex type that contains general information about the hosted zone.

A flag indicating whether there are more hosted zones to be listed. If the response was truncated, you can get more hosted zones by submitting another ListHostedZones request and specifying the value of NextMarker in the marker parameter.

The value that you specified for the maxitems parameter in the call to ListHostedZones that produced the current response.

(Optional) For your first request to ListHostedZonesByName, include the dnsname parameter only if you want to specify the name of the first hosted zone in the response. If you don't include the dnsname parameter, Amazon Route 53 returns all of the hosted zones that were created by the current Amazon Web Services account, in ASCII order. For subsequent requests, include both dnsname and hostedzoneid parameters. For dnsname, specify the value of NextDNSName from the previous response.

(Optional) For your first request to ListHostedZonesByName, do not include the hostedzoneid parameter.

If you have more hosted zones than the value of maxitems, ListHostedZonesByName returns only the first maxitems hosted zones. To get the next group of maxitems hosted zones, submit another request to ListHostedZonesByName and include both dnsname and hostedzoneid parameters. For the value of hostedzoneid, specify the value of the NextHostedZoneId element from the previous response.

The maximum number of hosted zones to be included in the response body for this request. If you have more than maxitems hosted zones, then the value of the IsTruncated element in the response is true, and the values of NextDNSName and NextHostedZoneId specify the first hosted zone in the next group of maxitems hosted zones.

For the second and subsequent calls to ListHostedZonesByName, DNSName is the value that you specified for the dnsname parameter in the request that produced the current response.

The ID that Amazon Route 53 assigned to the hosted zone when you created it.

If IsTruncated is true, the value of NextDNSName is the name of the first hosted zone in the next group of maxitems hosted zones. Call ListHostedZonesByName again and specify the value of NextDNSName and NextHostedZoneId in the dnsname and hostedzoneid parameters, respectively.

This element is present only if IsTruncated is true.

If IsTruncated is true, the value of NextHostedZoneId identifies the first hosted zone in the next group of maxitems hosted zones. Call ListHostedZonesByName again and specify the value of NextDNSName and NextHostedZoneId in the dnsname and hostedzoneid parameters, respectively.

This element is present only if IsTruncated is true.

The response's http status code.

A complex type that contains general information about the hosted zone.

A flag that indicates whether there are more hosted zones to be listed. If the response was truncated, you can get the next group of maxitems hosted zones by calling ListHostedZonesByName again and specifying the values of NextDNSName and NextHostedZoneId elements in the dnsname and hostedzoneid parameters.

The value that you specified for the maxitems parameter in the call to ListHostedZonesByName that produced the current response.

(Optional) The maximum number of hosted zones that you want Amazon Route 53 to return. If the specified VPC is associated with more than MaxItems hosted zones, the response includes a NextToken element. NextToken contains an encrypted token that identifies the first hosted zone that Route 53 will return if you submit another request.

If the previous response included a NextToken element, the specified VPC is associated with more hosted zones. To get more hosted zones, submit another ListHostedZonesByVPC request.

For the value of NextToken, specify the value of NextToken from the previous response.

If the previous response didn't include a NextToken element, there are no more hosted zones to get.

The ID of the Amazon VPC that you want to list hosted zones for.

For the Amazon VPC that you specified for VPCId, the Amazon Web Services Region that you created the VPC in.

The value that you will use for NextToken in the next ListHostedZonesByVPC request.

The response's http status code.

A list that contains one HostedZoneSummary element for each hosted zone that the specified Amazon VPC is associated with. Each HostedZoneSummary element contains the hosted zone name and ID, and information about who owns the hosted zone.

The value that you specified for MaxItems in the most recent ListHostedZonesByVPC request.

(Optional) If you want to list the query logging configuration that is associated with a hosted zone, specify the ID in HostedZoneId.

If you don't specify a hosted zone ID, ListQueryLoggingConfigs returns all of the configurations that are associated with the current Amazon Web Services account.

(Optional) The maximum number of query logging configurations that you want Amazon Route 53 to return in response to the current request. If the current Amazon Web Services account has more than MaxResults configurations, use the value of NextToken in the response to get the next page of results.

If you don't specify a value for MaxResults, Route 53 returns up to 100 configurations.

(Optional) If the current Amazon Web Services account has more than MaxResults query logging configurations, use NextToken to get the second and subsequent pages of results.

For the first ListQueryLoggingConfigs request, omit this value.

For the second and subsequent requests, get the value of NextToken from the previous response and specify that value for NextToken in the request.

If a response includes the last of the query logging configurations that are associated with the current Amazon Web Services account, NextToken doesn't appear in the response.

If a response doesn't include the last of the configurations, you can get more configurations by submitting another ListQueryLoggingConfigs request. Get the value of NextToken that Amazon Route 53 returned in the previous response and include it in NextToken in the next request.

The response's http status code.

An array that contains one QueryLoggingConfig element for each configuration for DNS query logging that is associated with the current Amazon Web Services account.

(Optional) The maximum number of resource records sets to include in the response body for this request. If the response includes more than maxitems resource record sets, the value of the IsTruncated element in the response is true, and the values of the NextRecordName and NextRecordType elements in the response identify the first resource record set in the next group of maxitems resource record sets.

Resource record sets that have a routing policy other than simple: If results were truncated for a given DNS name and type, specify the value of NextRecordIdentifier from the previous response to get the next resource record set that has the current DNS name and type.

The first name in the lexicographic ordering of resource record sets that you want to list. If the specified record name doesn't exist, the results begin with the first resource record set that has a name greater than the value of name.

The type of resource record set to begin the record listing from.

Valid values for basic resource record sets: A | AAAA | CAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT

Values for weighted, latency, geolocation, and failover resource record sets: A | AAAA | CAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT

Values for alias resource record sets:

• API Gateway custom regional API or edge-optimized API: A
• CloudFront distribution: A or AAAA
• Elastic Beanstalk environment that has a regionalized subdomain: A
• Elastic Load Balancing load balancer: A | AAAA
• S3 bucket: A
• VPC interface VPC endpoint: A
• Another resource record set in this hosted zone: The type of the resource record set that the alias references.

Constraint: Specifying type without specifying name returns an InvalidInput error.

The ID of the hosted zone that contains the resource record sets that you want to list.

Resource record sets that have a routing policy other than simple: If results were truncated for a given DNS name and type, the value of SetIdentifier for the next resource record set that has the current DNS name and type.

For information about routing policies, see Choosing a Routing Policy in the Amazon Route 53 Developer Guide.

If the results were truncated, the name of the next record in the list.

This element is present only if IsTruncated is true.

If the results were truncated, the type of the next record in the list.

This element is present only if IsTruncated is true.

The response's http status code.

Information about multiple resource record sets.

A flag that indicates whether more resource record sets remain to be listed. If your results were truncated, you can make a follow-up pagination request by using the NextRecordName element.

The maximum number of records you requested.

If the value of IsTruncated in the previous response was true, you have more reusable delegation sets. To get another group, submit another ListReusableDelegationSets request.

For the value of marker, specify the value of NextMarker from the previous response, which is the ID of the first reusable delegation set that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was false, there are no more reusable delegation sets to get.

The number of reusable delegation sets that you want Amazon Route 53 to return in the response to this request. If you specify a value greater than 100, Route 53 returns only the first 100 reusable delegation sets.

If IsTruncated is true, the value of NextMarker identifies the next reusable delegation set that Amazon Route 53 will return if you submit another ListReusableDelegationSets request and specify the value of NextMarker in the marker parameter.

The response's http status code.

A complex type that contains one DelegationSet element for each reusable delegation set that was created by the current Amazon Web Services account.

For the second and subsequent calls to ListReusableDelegationSets, Marker is the value that you specified for the marker parameter in the request that produced the current response.

A flag that indicates whether there are more reusable delegation sets to be listed.

The value that you specified for the maxitems parameter in the call to ListReusableDelegationSets that produced the current response.

The type of the resource.

• The resource type for health checks is healthcheck.
• The resource type for hosted zones is hostedzone.

The ID of the resource for which you want to retrieve tags.

The response's http status code.

A ResourceTagSet containing tags associated with the specified resource.

The type of the resources.

• The resource type for health checks is healthcheck.
• The resource type for hosted zones is hostedzone.

A complex type that contains the ResourceId element for each resource for which you want to get a list of tags.

The response's http status code.

A list of ResourceTagSets containing tags associated with the specified resources.

(Optional) The maximum number of traffic policies that you want Amazon Route 53 to return in response to this request. If you have more than MaxItems traffic policies, the value of IsTruncated in the response is true, and the value of TrafficPolicyIdMarker is the ID of the first traffic policy that Route 53 will return if you submit another request.

(Conditional) For your first request to ListTrafficPolicies, don't include the TrafficPolicyIdMarker parameter.

If you have more traffic policies than the value of MaxItems, ListTrafficPolicies returns only the first MaxItems traffic policies. To get the next group of policies, submit another request to ListTrafficPolicies. For the value of TrafficPolicyIdMarker, specify the value of TrafficPolicyIdMarker that was returned in the previous response.

The response's http status code.

A list that contains one TrafficPolicySummary element for each traffic policy that was created by the current Amazon Web Services account.

A flag that indicates whether there are more traffic policies to be listed. If the response was truncated, you can get the next group of traffic policies by submitting another ListTrafficPolicies request and specifying the value of TrafficPolicyIdMarker in the TrafficPolicyIdMarker request parameter.

If the value of IsTruncated is true, TrafficPolicyIdMarker is the ID of the first traffic policy in the next group of MaxItems traffic policies.

The value that you specified for the MaxItems parameter in the ListTrafficPolicies request that produced the current response.

If the value of IsTruncated in the previous response was true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstances request. For the value of HostedZoneId, specify the value of HostedZoneIdMarker from the previous response, which is the hosted zone ID of the first traffic policy instance in the next group of traffic policy instances.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

The maximum number of traffic policy instances that you want Amazon Route 53 to return in response to a ListTrafficPolicyInstances request. If you have more than MaxItems traffic policy instances, the value of the IsTruncated element in the response is true, and the values of HostedZoneIdMarker, TrafficPolicyInstanceNameMarker, and TrafficPolicyInstanceTypeMarker represent the first traffic policy instance in the next group of MaxItems traffic policy instances.

If the value of IsTruncated in the previous response was true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstances request. For the value of trafficpolicyinstancename, specify the value of TrafficPolicyInstanceNameMarker from the previous response, which is the name of the first traffic policy instance in the next group of traffic policy instances.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

If the value of IsTruncated in the previous response was true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstances request. For the value of trafficpolicyinstancetype, specify the value of TrafficPolicyInstanceTypeMarker from the previous response, which is the type of the first traffic policy instance in the next group of traffic policy instances.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

If IsTruncated is true, HostedZoneIdMarker is the ID of the hosted zone of the first traffic policy instance that Route 53 will return if you submit another ListTrafficPolicyInstances request.

If IsTruncated is true, TrafficPolicyInstanceNameMarker is the name of the first traffic policy instance that Route 53 will return if you submit another ListTrafficPolicyInstances request.

If IsTruncated is true, TrafficPolicyInstanceTypeMarker is the DNS type of the resource record sets that are associated with the first traffic policy instance that Amazon Route 53 will return if you submit another ListTrafficPolicyInstances request.

The response's http status code.

A list that contains one TrafficPolicyInstance element for each traffic policy instance that matches the elements in the request.

A flag that indicates whether there are more traffic policy instances to be listed. If the response was truncated, you can get more traffic policy instances by calling ListTrafficPolicyInstances again and specifying the values of the HostedZoneIdMarker, TrafficPolicyInstanceNameMarker, and TrafficPolicyInstanceTypeMarker in the corresponding request parameters.

The value that you specified for the MaxItems parameter in the call to ListTrafficPolicyInstances that produced the current response.

The maximum number of traffic policy instances to be included in the response body for this request. If you have more than MaxItems traffic policy instances, the value of the IsTruncated element in the response is true, and the values of HostedZoneIdMarker, TrafficPolicyInstanceNameMarker, and TrafficPolicyInstanceTypeMarker represent the first traffic policy instance that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response is true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstances request. For the value of trafficpolicyinstancename, specify the value of TrafficPolicyInstanceNameMarker from the previous response, which is the name of the first traffic policy instance in the next group of traffic policy instances.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

If the value of IsTruncated in the previous response is true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstances request. For the value of trafficpolicyinstancetype, specify the value of TrafficPolicyInstanceTypeMarker from the previous response, which is the type of the first traffic policy instance in the next group of traffic policy instances.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

The ID of the hosted zone that you want to list traffic policy instances for.

If IsTruncated is true, TrafficPolicyInstanceNameMarker is the name of the first traffic policy instance in the next group of traffic policy instances.

If IsTruncated is true, TrafficPolicyInstanceTypeMarker is the DNS type of the resource record sets that are associated with the first traffic policy instance in the next group of traffic policy instances.

The response's http status code.

A list that contains one TrafficPolicyInstance element for each traffic policy instance that matches the elements in the request.

A flag that indicates whether there are more traffic policy instances to be listed. If the response was truncated, you can get the next group of traffic policy instances by submitting another ListTrafficPolicyInstancesByHostedZone request and specifying the values of HostedZoneIdMarker, TrafficPolicyInstanceNameMarker, and TrafficPolicyInstanceTypeMarker in the corresponding request parameters.

The value that you specified for the MaxItems parameter in the ListTrafficPolicyInstancesByHostedZone request that produced the current response.

If the value of IsTruncated in the previous response was true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstancesByPolicy request.

For the value of hostedzoneid, specify the value of HostedZoneIdMarker from the previous response, which is the hosted zone ID of the first traffic policy instance that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

The maximum number of traffic policy instances to be included in the response body for this request. If you have more than MaxItems traffic policy instances, the value of the IsTruncated element in the response is true, and the values of HostedZoneIdMarker, TrafficPolicyInstanceNameMarker, and TrafficPolicyInstanceTypeMarker represent the first traffic policy instance that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstancesByPolicy request.

For the value of trafficpolicyinstancename, specify the value of TrafficPolicyInstanceNameMarker from the previous response, which is the name of the first traffic policy instance that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

If the value of IsTruncated in the previous response was true, you have more traffic policy instances. To get more traffic policy instances, submit another ListTrafficPolicyInstancesByPolicy request.

For the value of trafficpolicyinstancetype, specify the value of TrafficPolicyInstanceTypeMarker from the previous response, which is the name of the first traffic policy instance that Amazon Route 53 will return if you submit another request.

If the value of IsTruncated in the previous response was false, there are no more traffic policy instances to get.

The ID of the traffic policy for which you want to list traffic policy instances.

The version of the traffic policy for which you want to list traffic policy instances. The version must be associated with the traffic policy that is specified by TrafficPolicyId.

If IsTruncated is true, HostedZoneIdMarker is the ID of the hosted zone of the first traffic policy instance in the next group of traffic policy instances.

If IsTruncated is true, TrafficPolicyInstanceNameMarker is the name of the first traffic policy instance in the next group of MaxItems traffic policy instances.

If IsTruncated is true, TrafficPolicyInstanceTypeMarker is the DNS type of the resource record sets that are associated with the first traffic policy instance in the next group of MaxItems traffic policy instances.

The response's http status code.

A list that contains one TrafficPolicyInstance element for each traffic policy instance that matches the elements in the request.

A flag that indicates whether there are more traffic policy instances to be listed. If the response was truncated, you can get the next group of traffic policy instances by calling ListTrafficPolicyInstancesByPolicy again and specifying the values of the HostedZoneIdMarker, TrafficPolicyInstanceNameMarker, and TrafficPolicyInstanceTypeMarker elements in the corresponding request parameters.

The value that you specified for the MaxItems parameter in the call to ListTrafficPolicyInstancesByPolicy that produced the current response.

The maximum number of traffic policy versions that you want Amazon Route 53 to include in the response body for this request. If the specified traffic policy has more than MaxItems versions, the value of IsTruncated in the response is true, and the value of the TrafficPolicyVersionMarker element is the ID of the first version that Route 53 will return if you submit another request.

For your first request to ListTrafficPolicyVersions, don't include the TrafficPolicyVersionMarker parameter.

If you have more traffic policy versions than the value of MaxItems, ListTrafficPolicyVersions returns only the first group of MaxItems versions. To get more traffic policy versions, submit another ListTrafficPolicyVersions request. For the value of TrafficPolicyVersionMarker, specify the value of TrafficPolicyVersionMarker in the previous response.

Specify the value of Id of the traffic policy for which you want to list all versions.

The response's http status code.

A list that contains one TrafficPolicy element for each traffic policy version that is associated with the specified traffic policy.

A flag that indicates whether there are more traffic policies to be listed. If the response was truncated, you can get the next group of traffic policies by submitting another ListTrafficPolicyVersions request and specifying the value of NextMarker in the marker parameter.

If IsTruncated is true, the value of TrafficPolicyVersionMarker identifies the first traffic policy that Amazon Route 53 will return if you submit another request. Call ListTrafficPolicyVersions again and specify the value of TrafficPolicyVersionMarker in the TrafficPolicyVersionMarker request parameter.

This element is present only if IsTruncated is true.

The value that you specified for the maxitems parameter in the ListTrafficPolicyVersions request that produced the current response.

Optional: An integer that specifies the maximum number of VPCs that you want Amazon Route 53 to return. If you don't specify a value for MaxResults, Route 53 returns up to 50 VPCs per page.

Optional: If a response includes a NextToken element, there are more VPCs that can be associated with the specified hosted zone. To get the next page of results, submit another request, and include the value of NextToken from the response in the nexttoken parameter in another ListVPCAssociationAuthorizations request.

The ID of the hosted zone for which you want a list of VPCs that can be associated with the hosted zone.

When the response includes a NextToken element, there are more VPCs that can be associated with the specified hosted zone. To get the next page of VPCs, submit another ListVPCAssociationAuthorizations request, and include the value of the NextToken element from the response in the nexttoken request parameter.

The response's http status code.

The ID of the hosted zone that you can associate the listed VPCs with.

The list of VPCs that are authorized to be associated with the specified hosted zone.

If the resolver that you specified for resolverip supports EDNS0, specify the IPv4 or IPv6 address of a client in the applicable location, for example, 192.0.2.44 or 2001:db8:85a3::8a2e:370:7334.

If you specify an IP address for edns0clientsubnetip, you can optionally specify the number of bits of the IP address that you want the checking tool to include in the DNS query. For example, if you specify 192.0.2.44 for edns0clientsubnetip and 24 for edns0clientsubnetmask, the checking tool will simulate a request from 192.0.2.0/24. The default value is 24 bits for IPv4 addresses and 64 bits for IPv6 addresses.

The range of valid values depends on whether edns0clientsubnetip is an IPv4 or an IPv6 address:

• IPv4: Specify a value between 0 and 32
• IPv6: Specify a value between 0 and 128

If you want to simulate a request from a specific DNS resolver, specify the IP address for that resolver. If you omit this value, TestDnsAnswer uses the IP address of a DNS resolver in the Amazon Web Services US East (N. Virginia) Region (us-east-1).

The ID of the hosted zone that you want Amazon Route 53 to simulate a query for.

The name of the resource record set that you want Amazon Route 53 to simulate a query for.

The type of the resource record set.

The response's http status code.

The Amazon Route 53 name server used to respond to the request.

The name of the resource record set that you submitted a request for.

The type of the resource record set that you submitted a request for.

A list that contains values that Amazon Route 53 returned for this resource record set.

A code that indicates whether the request is valid or not. The most common response code is NOERROR, meaning that the request is valid. If the response is not valid, Amazon Route 53 returns a response code that describes the error. For a list of possible response codes, see DNS RCODES on the IANA website.

The protocol that Amazon Route 53 used to respond to the request, either UDP or TCP.

A complex type that identifies the CloudWatch alarm that you want Amazon Route 53 health checkers to use to determine whether the specified health check is healthy.

A complex type that contains one ChildHealthCheck element for each health check that you want to associate with a CALCULATED health check.

Stops Route 53 from performing health checks. When you disable a health check, here's what happens:

• Health checks that check the health of endpoints: Route 53 stops submitting requests to your application, server, or other resource.
• Calculated health checks: Route 53 stops aggregating the status of the referenced health checks.
• Health checks that monitor CloudWatch alarms: Route 53 stops monitoring the corresponding CloudWatch metrics.

After you disable a health check, Route 53 considers the status of the health check to always be healthy. If you configured DNS failover, Route 53 continues to route traffic to the corresponding resources. If you want to stop routing traffic to a resource, change the value of Inverted.

Charges for a health check still apply when the health check is disabled. For more information, see Amazon Route 53 Pricing.

Specify whether you want Amazon Route 53 to send the value of FullyQualifiedDomainName to the endpoint in the client_hello message during TLS negotiation. This allows the endpoint to respond to HTTPS health check requests with the applicable SSL/TLS certificate.

Some endpoints require that HTTPS requests include the host name in the client_hello message. If you don't enable SNI, the status of the health check will be SSL alert handshake_failure. A health check can also have that status for other reasons. If SNI is enabled and you're still getting the error, check the SSL/TLS configuration on your endpoint and confirm that your certificate is valid.

The SSL/TLS certificate on your endpoint includes a domain name in the Common Name field and possibly several more in the Subject Alternative Names field. One of the domain names in the certificate should match the value that you specify for FullyQualifiedDomainName. If the endpoint responds to the client_hello message with a certificate that does not include the domain name that you specified in FullyQualifiedDomainName, a health checker will retry the handshake. In the second attempt, the health checker will omit FullyQualifiedDomainName from the client_hello message.

The number of consecutive health checks that an endpoint must pass or fail for Amazon Route 53 to change the current status of the endpoint from unhealthy to healthy or vice versa. For more information, see How Amazon Route 53 Determines Whether an Endpoint Is Healthy in the Amazon Route 53 Developer Guide.

If you don't specify a value for FailureThreshold, the default value is three health checks.

Amazon Route 53 behavior depends on whether you specify a value for IPAddress.

If a health check already has a value for IPAddress, you can change the value. However, you can't update an existing health check to add or remove the value of IPAddress.

If you specify a value for IPAddress:

Route 53 sends health check requests to the specified IPv4 or IPv6 address and passes the value of FullyQualifiedDomainName in the Host header for all health checks except TCP health checks. This is typically the fully qualified DNS name of the endpoint on which you want Route 53 to perform health checks.

When Route 53 checks the health of an endpoint, here is how it constructs the Host header:

• If you specify a value of 80 for Port and HTTP or HTTP_STR_MATCH for Type, Route 53 passes the value of FullyQualifiedDomainName to the endpoint in the Host header.
• If you specify a value of 443 for Port and HTTPS or HTTPS_STR_MATCH for Type, Route 53 passes the value of FullyQualifiedDomainName to the endpoint in the Host header.
• If you specify another value for Port and any value except TCP for Type, Route 53 passes FullyQualifiedDomainName:Port to the endpoint in the Host header.

If you don't specify a value for FullyQualifiedDomainName, Route 53 substitutes the value of IPAddress in the Host header in each of the above cases.

If you don't specify a value for IPAddress:

If you don't specify a value for IPAddress, Route 53 sends a DNS request to the domain that you specify in FullyQualifiedDomainName at the interval you specify in RequestInterval. Using an IPv4 address that is returned by DNS, Route 53 then checks the health of the endpoint.

If you don't specify a value for IPAddress, Route 53 uses only IPv4 to send health checks to the endpoint. If there's no resource record set with a type of A for the name that you specify for FullyQualifiedDomainName, the health check fails with a "DNS resolution failed" error.

If you want to check the health of weighted, latency, or failover resource record sets and you choose to specify the endpoint only by FullyQualifiedDomainName, we recommend that you create a separate health check for each endpoint. For example, create a health check for each HTTP server that is serving content for www.example.com. For the value of FullyQualifiedDomainName, specify the domain name of the server (such as us-east-2-www.example.com), not the name of the resource record sets (www.example.com).

In this configuration, if the value of FullyQualifiedDomainName matches the name of the resource record sets and you then associate the health check with those resource record sets, health check results will be unpredictable.

In addition, if the value of Type is HTTP, HTTPS, HTTP_STR_MATCH, or HTTPS_STR_MATCH, Route 53 passes the value of FullyQualifiedDomainName in the Host header, as it does when you specify a value for IPAddress. If the value of Type is TCP, Route 53 doesn't pass a Host header.

A sequential counter that Amazon Route 53 sets to 1 when you create a health check and increments by 1 each time you update settings for the health check.

We recommend that you use GetHealthCheck or ListHealthChecks to get the current value of HealthCheckVersion for the health check that you want to update, and that you include that value in your UpdateHealthCheck request. This prevents Route 53 from overwriting an intervening update:

• If the value in the UpdateHealthCheck request matches the value of HealthCheckVersion in the health check, Route 53 updates the health check with the new settings.
• If the value of HealthCheckVersion in the health check is greater, the health check was changed after you got the version number. Route 53 does not update the health check, and it returns a HealthCheckVersionMismatch error.

The number of child health checks that are associated with a CALCULATED health that Amazon Route 53 must consider healthy for the CALCULATED health check to be considered healthy. To specify the child health checks that you want to associate with a CALCULATED health check, use the ChildHealthChecks and ChildHealthCheck elements.

Note the following:

• If you specify a number greater than the number of child health checks, Route 53 always considers this health check to be unhealthy.
• If you specify 0, Route 53 always considers this health check to be healthy.

The IPv4 or IPv6 IP address for the endpoint that you want Amazon Route 53 to perform health checks on. If you don't specify a value for IPAddress, Route 53 sends a DNS request to resolve the domain name that you specify in FullyQualifiedDomainName at the interval that you specify in RequestInterval. Using an IP address that is returned by DNS, Route 53 then checks the health of the endpoint.

Use one of the following formats for the value of IPAddress:

• IPv4 address: four values between 0 and 255, separated by periods (.), for example, 192.0.2.44.
• IPv6 address: eight groups of four hexadecimal values, separated by colons (:), for example, 2001:0db8:85a3:0000:0000:abcd:0001:2345. You can also shorten IPv6 addresses as described in RFC 5952, for example, 2001:db8:85a3::abcd:1:2345.

If the endpoint is an EC2 instance, we recommend that you create an Elastic IP address, associate it with your EC2 instance, and specify the Elastic IP address for IPAddress. This ensures that the IP address of your instance never changes. For more information, see the applicable documentation:

• Linux: Elastic IP Addresses (EIP) in the Amazon EC2 User Guide for Linux Instances
• Windows: Elastic IP Addresses (EIP) in the Amazon EC2 User Guide for Windows Instances

If a health check already has a value for IPAddress, you can change the value. However, you can't update an existing health check to add or remove the value of IPAddress.

For more information, see FullyQualifiedDomainName.

Constraints: Route 53 can't check the health of endpoints for which the IP address is in local, private, non-routable, or multicast ranges. For more information about IP addresses for which you can't create health checks, see the following documents:

• RFC 5735, Special Use IPv4 Addresses
• RFC 6598, IANA-Reserved IPv4 Prefix for Shared Address Space
• RFC 5156, Special-Use IPv6 Addresses