Route53.Client.
list_resource_record_sets
(**kwargs)¶Lists the resource record sets in a specified hosted zone.
ListResourceRecordSets
returns up to 300 resource record sets at a time in ASCII order, beginning at a position specified by thename
andtype
elements.Sort order
ListResourceRecordSets
sorts results first by DNS name with the labels reversed, for example:
com.example.www.
Note the trailing dot, which can change the sort order when the record name contains characters that appear before .
(decimal 46) in the ASCII table. These characters include the following: ! " # $ % & ' ( ) * + , -
When multiple records have the same DNS name, ListResourceRecordSets
sorts results by the record type.
Specifying where to start listing records
You can use the name and type elements to specify the resource record set that the list begins with:
If you do not specify Name or Type
The results begin with the first resource record set that the hosted zone contains.
If you specify Name but not Type
The results begin with the first resource record set in the list whose name is greater than or equal to Name
.
If you specify Type but not Name
Amazon Route 53 returns the InvalidInput
error.
If you specify both Name and Type
The results begin with the first resource record set in the list whose name is greater than or equal to Name
, and whose type is greater than or equal to Type
.
Resource record sets that are PENDING
This action returns the most current version of the records. This includes records that are PENDING
, and that are not yet available on all Route 53 DNS servers.
Changing resource record sets
To ensure that you get an accurate listing of the resource record sets for a hosted zone at a point in time, do not submit a ChangeResourceRecordSets
request while you're paging through the results of a ListResourceRecordSets
request. If you do, some pages may display results without the latest changes while other pages display results with the latest changes.
Displaying the next page of results
If a ListResourceRecordSets
command returns more than one page of results, the value of IsTruncated
is true
. To display the next page of results, get the values of NextRecordName
, NextRecordType
, and NextRecordIdentifier
(if any) from the response. Then submit another ListResourceRecordSets
request, and specify those values for StartRecordName
, StartRecordType
, and StartRecordIdentifier
.
See also: AWS API Documentation
Request Syntax
response = client.list_resource_record_sets(
HostedZoneId='string',
StartRecordName='string',
StartRecordType='SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA'|'CAA'|'DS',
StartRecordIdentifier='string',
MaxItems='string'
)
[REQUIRED]
The ID of the hosted zone that contains the resource record sets that you want to list.
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:
Constraint: Specifying type
without specifying name
returns an InvalidInput
error.
NextRecordIdentifier
from the previous response to get the next resource record set that has the current DNS name and type.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.dict
Response Syntax
{
'ResourceRecordSets': [
{
'Name': 'string',
'Type': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA'|'CAA'|'DS',
'SetIdentifier': 'string',
'Weight': 123,
'Region': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'ca-central-1'|'eu-west-1'|'eu-west-2'|'eu-west-3'|'eu-central-1'|'eu-central-2'|'ap-southeast-1'|'ap-southeast-2'|'ap-southeast-3'|'ap-northeast-1'|'ap-northeast-2'|'ap-northeast-3'|'eu-north-1'|'sa-east-1'|'cn-north-1'|'cn-northwest-1'|'ap-east-1'|'me-south-1'|'me-central-1'|'ap-south-1'|'ap-south-2'|'af-south-1'|'eu-south-1'|'eu-south-2'|'ap-southeast-4',
'GeoLocation': {
'ContinentCode': 'string',
'CountryCode': 'string',
'SubdivisionCode': 'string'
},
'Failover': 'PRIMARY'|'SECONDARY',
'MultiValueAnswer': True|False,
'TTL': 123,
'ResourceRecords': [
{
'Value': 'string'
},
],
'AliasTarget': {
'HostedZoneId': 'string',
'DNSName': 'string',
'EvaluateTargetHealth': True|False
},
'HealthCheckId': 'string',
'TrafficPolicyInstanceId': 'string',
'CidrRoutingConfig': {
'CollectionId': 'string',
'LocationName': 'string'
}
},
],
'IsTruncated': True|False,
'NextRecordName': 'string',
'NextRecordType': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA'|'CAA'|'DS',
'NextRecordIdentifier': 'string',
'MaxItems': 'string'
}
Response Structure
(dict) --
A complex type that contains list information for the resource record set.
ResourceRecordSets (list) --
Information about multiple resource record sets.
(dict) --
Information about the resource record set to create or delete.
Name (string) --
For ChangeResourceRecordSets
requests, the name of the record that you want to create, update, or delete. For ListResourceRecordSets
responses, the name of a record in the specified hosted zone.
ChangeResourceRecordSets Only
Enter a fully qualified domain name, for example, www.example.com
. You can optionally include a trailing dot. If you omit the trailing dot, Amazon Route 53 assumes that the domain name that you specify 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.
For information about how to specify characters other than a-z
, 0-9
, and -
(hyphen) and how to specify internationalized domain names, see DNS Domain Name Format in the Amazon Route 53 Developer Guide .
You can use the asterisk (*) wildcard to replace the leftmost label in a domain name, for example, *.example.com
. Note the following:
*prod.example.com
or prod*.example.com
.Warning
You can't use the * wildcard for resource records sets that have a type of NS.
You can use the * wildcard as the leftmost label in a domain name, for example, *.example.com
. You can't use an * for one of the middle labels, for example, marketing.*.example.com
. In addition, the * must replace the entire label; for example, you can't specify prod*.example.com
.
Type (string) --
The DNS record type. For information about different record types and how data is encoded for them, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide .
Valid values for basic resource record sets: A
| AAAA
| CAA
| CNAME
| DS
| 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
. When creating a group of weighted, latency, geolocation, or failover resource record sets, specify the same value for all of the resource record sets in the group.
Valid values for multivalue answer resource record sets: A
| AAAA
| MX
| NAPTR
| PTR
| SPF
| SRV
| TXT
Note
SPF records were formerly used to verify the identity of the sender of email messages. However, we no longer recommend that you create resource record sets for which the value of Type
is SPF
. RFC 7208, Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1 , has been updated to say, "...[I]ts existence and mechanism defined in [RFC4408] have led to some interoperability issues. Accordingly, its use is no longer appropriate for SPF version 1; implementations are not to use it." In RFC 7208, see section 14.1, The SPF DNS Record Type.
Values for alias resource record sets:
A
A
If IPv6 is enabled for the distribution, create two resource record sets to route traffic to your distribution, one with a value of A
and one with a value of AAAA
.A
A
| AAAA
A
A
NS
and SOA
.Note
If you're creating an alias record that has the same name as the hosted zone (known as the zone apex), you can't route traffic to a record for which the value of Type
is CNAME
. This is because the alias record must have the same type as the record you're routing traffic to, and creating a CNAME record for the zone apex isn't supported even for an alias record.
SetIdentifier (string) --
Resource record sets that have a routing policy other than simple: An identifier that differentiates among multiple resource record sets that have the same combination of name and type, such as multiple weighted resource record sets named acme.example.com that have a type of A. In a group of resource record sets that have the same name and type, the value of
SetIdentifier
must be unique for each resource record set.
For information about routing policies, see Choosing a Routing Policy in the Amazon Route 53 Developer Guide .
Weight (integer) --
Weighted resource record sets only: Among resource record sets that have the same combination of DNS name and type, a value that determines the proportion of DNS queries that Amazon Route 53 responds to using the current resource record set. Route 53 calculates the sum of the weights for the resource record sets that have the same combination of DNS name and type. Route 53 then responds to queries based on the ratio of a resource's weight to the total. Note the following:
Weight
element for every weighted resource record set.ResourceRecord
per weighted resource record set.Name
and Type
elements as weighted resource record sets.Name
and Type
elements.Weight
to 0
for a resource record set, Route 53 never responds to queries with the applicable value for that resource record set. However, if you set Weight
to 0
for all resource record sets that have the same combination of DNS name and type, traffic is routed to all resources with equal probability. The effect of setting Weight
to 0
is different when you associate health checks with weighted resource record sets. For more information, see Options for Configuring Route 53 Active-Active and Active-Passive Failover in the Amazon Route 53 Developer Guide .Region (string) --
Latency-based resource record sets only: The Amazon EC2 Region where you created the resource that this resource record set refers to. The resource typically is an Amazon Web Services resource, such as an EC2 instance or an ELB load balancer, and is referred to by an IP address or a DNS domain name, depending on the record type.
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 Region. Route 53 then returns the value that is associated with the selected resource record set.
Note the following:
ResourceRecord
per latency resource record set.Name
and Type
elements as latency resource record sets.GeoLocation (dict) --
Geolocation resource record sets only: A complex type that lets you control how Amazon Route 53 responds to DNS queries based on the geographic origin of the query. For example, if you want all queries from Africa to be routed to a web server with an IP address of
192.0.2.111
, create a resource record set with aType
ofA
and aContinentCode
ofAF
.
Note
Although creating geolocation and geolocation alias resource record sets in a private hosted zone is allowed, it's not supported.
If you create separate resource record sets for overlapping geographic regions (for example, one resource record set for a continent and one for a country on the same continent), priority goes to the smallest geographic region. This allows you to route most queries for a continent to one resource and to route queries for a country on that continent to a different resource.
You can't create two geolocation resource record sets that specify the same geographic location.
The value *
in the CountryCode
element matches all geographic locations that aren't specified in other geolocation resource record sets that have the same values for the Name
and Type
elements.
Warning
Geolocation works by mapping IP addresses to locations. However, some IP addresses aren't mapped to geographic locations, so even if you create geolocation resource record sets that cover all seven continents, Route 53 will receive some DNS queries from locations that it can't identify. We recommend that you create a resource record set for which the value of CountryCode
is *
. Two groups of queries are routed to the resource that you specify in this record: queries that come from locations for which you haven't created geolocation resource record sets and queries from IP addresses that aren't mapped to a location. If you don't create a *
resource record set, Route 53 returns a "no answer" response for queries from those locations.
You can't create non-geolocation resource record sets that have the same values for the Name
and Type
elements as geolocation resource record sets.
ContinentCode (string) --
The two-letter code for the continent.
Amazon Route 53 supports the following continent codes:
Constraint: Specifying ContinentCode
with either CountryCode
or SubdivisionCode
returns an InvalidInput
error.
CountryCode (string) --
For geolocation resource record sets, the two-letter code for a country.
Amazon Route 53 uses the two-letter country codes that are specified in ISO standard 3166-1 alpha-2.
SubdivisionCode (string) --
For geolocation resource record sets, the two-letter code for a state of the United States. Route 53 doesn't support any other values for SubdivisionCode
. For a list of state abbreviations, see Appendix B: Two–Letter State and Possession Abbreviations on the United States Postal Service website.
If you specify subdivisioncode
, you must also specify US
for CountryCode
.
Failover (string) --
Failover resource record sets only: To configure failover, you add the
Failover
element to two resource record sets. For one resource record set, you specifyPRIMARY
as the value forFailover
; for the other resource record set, you specifySECONDARY
. In addition, you include theHealthCheckId
element and specify the health check that you want Amazon Route 53 to perform for each resource record set.
Except where noted, the following failover behaviors assume that you have included the HealthCheckId
element in both resource record sets:
HealthCheckId
element for the secondary resource record set, and if the primary resource record set is unhealthy, Route 53 always responds to DNS queries with the applicable value from the secondary resource record set. This is true regardless of the health of the associated endpoint.You can't create non-failover resource record sets that have the same values for the Name
and Type
elements as failover resource record sets.
For failover alias resource record sets, you must also include the EvaluateTargetHealth
element and set the value to true.
For more information about configuring failover for Route 53, see the following topics in the Amazon Route 53 Developer Guide :
MultiValueAnswer (boolean) --
Multivalue answer resource record sets only : To route traffic approximately randomly to multiple resources, such as web servers, create one multivalue answer record for each resource and specify
true
forMultiValueAnswer
. Note the following:
You can't create multivalue answer alias records.
TTL (integer) --
The resource record cache time to live (TTL), in seconds. Note the following:
TTL
. Amazon Route 53 uses the value of TTL
for the alias target.HealthCheckId
element), we recommend that you specify a TTL
of 60 seconds or less so clients respond quickly to changes in health status.TTL
.TTL
of 60 seconds for all of the non-alias weighted resource record sets that have the same name and type. Values other than 60 seconds (the TTL for load balancers) will change the effect of the values that you specify for Weight
.ResourceRecords (list) --
Information about the resource records to act upon.
Note
If you're creating an alias resource record set, omit ResourceRecords
.
(dict) --
Information specific to the resource record.
Note
If you're creating an alias resource record set, omit ResourceRecord
.
Value (string) --
The current or new DNS record value, not to exceed 4,000 characters. In the case of a DELETE
action, if the current value does not match the actual value, an error is returned. For descriptions about how to format Value
for different record types, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide .
You can specify more than one value for all record types except CNAME
and SOA
.
Note
If you're creating an alias resource record set, omit Value
.
AliasTarget (dict) --
Alias resource record sets only: Information about the Amazon Web Services resource, such as a CloudFront distribution or an Amazon S3 bucket, that you want to route traffic to.
If you're creating resource records sets for a private hosted zone, note the following:
HostedZoneId (string) --
Alias resource records sets only : The value used depends on where you want to route traffic:
Amazon API Gateway custom regional APIs and edge-optimized APIs
Specify the hosted zone ID for your API. You can get the applicable value using the CLI command get-domain-names:
For regional APIs, specify the value of regionalHostedZoneId
.
For edge-optimized APIs, specify the value of distributionHostedZoneId
.
Amazon Virtual Private Cloud interface VPC endpoint
Specify the hosted zone ID for your interface endpoint. You can get the value of HostedZoneId
using the CLI command describe-vpc-endpoints.
CloudFront distribution
Specify Z2FDTNDATAQYW2
.
Note
Alias resource record sets for CloudFront can't be created in a private zone.
Elastic Beanstalk environment
Specify the hosted zone ID for the region that you created the environment in. The environment must have a regionalized subdomain. For a list of regions and the corresponding hosted zone IDs, see Elastic Beanstalk endpoints and quotas in the the Amazon Web Services General Reference .
ELB load balancer
Specify the value of the hosted zone ID for the load balancer. Use the following methods to get the hosted zone ID:
Elastic Load Balancing endpoints and quotas topic in the Amazon Web Services General Reference : Use the value that corresponds with the region that you created your load balancer in. Note that there are separate columns for Application and Classic Load Balancers and for Network Load Balancers.
Amazon Web Services Management Console : Go to the Amazon EC2 page, choose Load Balancers in the navigation pane, select the load balancer, and get the value of the Hosted zone field on the Description tab.
Elastic Load Balancing API : Use DescribeLoadBalancers
to get the applicable value. For more information, see the applicable guide:
CanonicalHostedZoneNameId
.CanonicalHostedZoneId
.CLI : Use describe-load-balancers
to get the applicable value. For more information, see the applicable guide:
CanonicalHostedZoneNameId
.CanonicalHostedZoneId
.Global Accelerator accelerator
Specify Z2BJ6XQ5FK7U4H
.
An Amazon S3 bucket configured as a static website
Specify the hosted zone ID for the region that you created the bucket in. For more information about valid values, see the table Amazon S3 Website Endpoints in the Amazon Web Services General Reference .
Another Route 53 resource record set in your hosted zone
Specify the hosted zone ID of your hosted zone. (An alias resource record set can't reference a resource record set in a different hosted zone.)
DNSName (string) --
Alias resource record sets only: The value that you specify depends on where you want to route queries:
Amazon API Gateway custom regional APIs and edge-optimized APIs
Specify the applicable domain name for your API. You can get the applicable value using the CLI command get-domain-names:
regionalDomainName
.distributionDomainName
. This is the name of the associated CloudFront distribution, such as da1b2c3d4e5.cloudfront.net
.Note
The name of the record that you're creating must match a custom domain name for your API, such as api.example.com
.
Amazon Virtual Private Cloud interface VPC endpoint
Enter the API endpoint for the interface endpoint, such as vpce-123456789abcdef01-example-us-east-1a.elasticloadbalancing.us-east-1.vpce.amazonaws.com
. For edge-optimized APIs, this is the domain name for the corresponding CloudFront distribution. You can get the value of DnsName
using the CLI command describe-vpc-endpoints.
CloudFront distribution
Specify the domain name that CloudFront assigned when you created your distribution.
Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com , your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide .
You can't create a resource record set in a private hosted zone to route traffic to a CloudFront distribution.
Note
For failover alias records, you can't specify a CloudFront distribution for both the primary and secondary records. A distribution must include an alternate domain name that matches the name of the record. However, the primary and secondary records have the same name, and you can't include the same alternate domain name in more than one distribution.
Elastic Beanstalk environment
If the domain name for your Elastic Beanstalk environment includes the region that you deployed the environment in, you can create an alias record that routes traffic to the environment. For example, the domain name my-environment.us-west-2.elasticbeanstalk.com
is a regionalized domain name.
Warning
For environments that were created before early 2016, the domain name doesn't include the region. To route traffic to these environments, you must create a CNAME record instead of an alias record. Note that you can't create a CNAME record for the root domain name. For example, if your domain name is example.com, you can create a record that routes traffic for acme.example.com to your Elastic Beanstalk environment, but you can't create a record that routes traffic for example.com to your Elastic Beanstalk environment.
For Elastic Beanstalk environments that have regionalized subdomains, specify the CNAME
attribute for the environment. You can use the following methods to get the value of the CNAME attribute:
Amazon Web Services Management Console : For information about how to get the value by using the console, see Using Custom Domains with Elastic Beanstalk in the Elastic Beanstalk Developer Guide .
Elastic Beanstalk API : Use the DescribeEnvironments
action to get the value of the CNAME
attribute. For more information, see DescribeEnvironments in the Elastic Beanstalk API Reference .
CLI : Use the describe-environments
command to get the value of the CNAME
attribute. For more information, see describe-environments in the CLI Command Reference .
ELB load balancer
Specify the DNS name that is associated with the load balancer. Get the DNS name by using the Amazon Web Services Management Console, the ELB API, or the CLI.
Amazon Web Services Management Console : Go to the EC2 page, choose Load Balancers in the navigation pane, choose the load balancer, choose the Description tab, and get the value of the DNS name field. If you're routing traffic to a Classic Load Balancer, get the value that begins with dualstack . If you're routing traffic to another type of load balancer, get the value that applies to the record type, A or AAAA.
Elastic Load Balancing API : Use DescribeLoadBalancers
to get the value of DNSName
. For more information, see the applicable guide:
CLI : Use describe-load-balancers
to get the value of DNSName
. For more information, see the applicable guide:
Global Accelerator accelerator
Specify the DNS name for your accelerator:
Global Accelerator API: To get the DNS name, use DescribeAccelerator.
CLI: To get the DNS name, use describe-accelerator.
Amazon S3 bucket that is configured as a static website
Specify the domain name of the Amazon S3 website endpoint that you created the bucket in, for example, s3-website.us-east-2.amazonaws.com
. For more information about valid values, see the table Amazon S3 Website Endpoints in the Amazon Web Services General Reference . For more information about using S3 buckets for websites, see Getting Started with Amazon Route 53 in the Amazon Route 53 Developer Guide.
Another Route 53 resource record set
Specify the value of the Name
element for a resource record set in the current hosted zone.
Note
If you're creating an alias record that has the same name as the hosted zone (known as the zone apex), you can't specify the domain name for a record for which the value of Type
is CNAME
. This is because the alias record must have the same type as the record that you're routing traffic to, and creating a CNAME record for the zone apex isn't supported even for an alias record.
EvaluateTargetHealth (boolean) --
Applies only to alias, failover alias, geolocation alias, latency alias, and weighted alias resource record sets: When
EvaluateTargetHealth
istrue
, an alias resource record set inherits the health of the referenced Amazon Web Services resource, such as an ELB load balancer or another resource record set in the hosted zone.
Note the following:
CloudFront distributions
You can't set EvaluateTargetHealth
to true
when the alias target is a CloudFront distribution.
Elastic Beanstalk environments that have regionalized subdomains
If you specify an Elastic Beanstalk environment in DNSName
and the environment contains an ELB load balancer, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. (An environment automatically contains an ELB load balancer if it includes more than one Amazon EC2 instance.) If you set EvaluateTargetHealth
to true
and either no Amazon EC2 instances are healthy or the load balancer itself is unhealthy, Route 53 routes queries to other available resources that are healthy, if any.
If the environment contains a single Amazon EC2 instance, there are no special requirements.
ELB load balancers
Health checking behavior depends on the type of load balancer:
DNSName
, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If you set EvaluateTargetHealth
to true
and either no EC2 instances are healthy or the load balancer itself is unhealthy, Route 53 routes queries to other resources.EvaluateTargetHealth
to true
, Route 53 routes queries to the load balancer based on the health of the target groups that are associated with the load balancer:Note
When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Route 53 health checks, but they perform a similar function. Do not create Route 53 health checks for the EC2 instances that you register with an ELB load balancer.
S3 buckets
There are no special requirements for setting EvaluateTargetHealth
to true
when the alias target is an S3 bucket.
Other records in the same hosted zone
If the Amazon Web Services resource that you specify in DNSName
is a record or a group of records (for example, a group of weighted records) but is not another alias record, we recommend that you associate a health check with all of the records in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide .
For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide .
HealthCheckId (string) --
If you want Amazon Route 53 to return this resource record set in response to a DNS query only when the status of a health check is healthy, include the HealthCheckId
element and specify the ID of the applicable health check.
Route 53 determines whether a resource record set is healthy based on one of the following:
Warning
Route 53 doesn't check the health of the endpoint that is specified in the resource record set, for example, the endpoint specified by the IP address in the Value
element. When you add a HealthCheckId
element to a resource record set, Route 53 checks the health of the endpoint that you specified in the health check.
For more information, see the following topics in the Amazon Route 53 Developer Guide :
When to Specify HealthCheckId
Specifying a value for HealthCheckId
is useful only when Route 53 is choosing between two or more resource record sets to respond to a DNS query, and you want Route 53 to base the choice in part on the status of a health check. Configuring health checks makes sense only in the following configurations:
EvaluateTargetHealth
to true for an alias resource record set in a group of resource record sets that have the same routing policy, name, and type (such as multiple weighted records named www.example.com with a type of A).If the health check status is healthy, Route 53 considers the alias resource record set to be healthy and includes the alias record among the records that it responds to DNS queries with.
If the health check status is unhealthy, Route 53 stops responding to DNS queries using the alias resource record set.
Note
The alias resource record set can also route traffic to a group of non-alias resource record sets that have the same routing policy, name, and type. In that configuration, associate health checks with all of the resource record sets in the group of non-alias resource record sets.
Geolocation Routing
For geolocation resource record sets, if an endpoint is unhealthy, Route 53 looks for a resource record set for the larger, associated geographic region. For example, suppose you have resource record sets for a state in the United States, for the entire United States, for North America, and a resource record set that has *
for CountryCode
is *
, which applies to all locations. If the endpoint for the state resource record set is unhealthy, Route 53 checks for healthy resource record sets in the following order until it finds a resource record set for which the endpoint is healthy:
Specifying the Health Check Endpoint by Domain Name
If your health checks specify the endpoint only by domain name, 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
).
Warning
Health check results will be unpredictable if you do the following:
FullyQualifiedDomainName
as the name of a resource record set.TrafficPolicyInstanceId (string) --
When you create a traffic policy instance, Amazon Route 53 automatically creates a resource record set. TrafficPolicyInstanceId
is the ID of the traffic policy instance that Route 53 created this resource record set for.
Warning
To delete the resource record set that is associated with a traffic policy instance, use DeleteTrafficPolicyInstance
. Route 53 will delete the resource record set automatically. If you delete the resource record set by using ChangeResourceRecordSets
, Route 53 doesn't automatically delete the traffic policy instance, and you'll continue to be charged for it even though it's no longer in use.
CidrRoutingConfig (dict) --
The object that is specified in resource record set object when you are linking a resource record set to a CIDR location.
A LocationName
with an asterisk “*” can be used to create a default CIDR record. CollectionId
is still required for default record.
CollectionId (string) --
The CIDR collection ID.
LocationName (string) --
The CIDR collection location name.
IsTruncated (boolean) --
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.
NextRecordName (string) --
If the results were truncated, the name of the next record in the list.
This element is present only if IsTruncated
is true.
NextRecordType (string) --
If the results were truncated, the type of the next record in the list.
This element is present only if IsTruncated
is true.
NextRecordIdentifier (string) --
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 .
MaxItems (string) --
The maximum number of records you requested.
Exceptions
Route53.Client.exceptions.NoSuchHostedZone
Route53.Client.exceptions.InvalidInput