Configuring DNS Providers
This guide assumes you've added your domains to the corresponding Render service. If you haven't done this yet, follow the steps to add custom domains to your service.
This page explains how you can configure DNS providers to point your Custom Domain to Render. Some of these steps might not apply to your provider. We have specific guides for popular DNS providers:
We’re also more than happy to help you set things up — just drop us a line in our user community or at support@render.com.
Make sure to remove any existing AAAA
records for your domains when you update your DNS settings. AAAA
records map a domain to a corresponding IPv6 record, but Render does not support IPv6 addresses yet. As a result, AAAA
records can interfere with Render hosting your custom domains.
Configuring Root domains
Using an ANAME
or ALIAS
Record
When you’re pointing a root domain like example.com
to your Render subdomain, you can use ANAME
or ALIAS
records if your DNS provider supports them. These records are not part of the standard DNS protocol but are implemented by some providers to make it easy to point root domains to other domains.
DNSimple, DNS Made Easy, Name.com and NS1 all support one or both of these record types.
-
ANAME
records let you refer to other domains just likeCNAME
records, but behave likeA
records in that they ultimately resolve to an IP address. This is also often called CNAME flattening. Read more here. -
ALIAS
records map a root domain to another domain while coexisting with other record types for the root domain. Read more here.
To configure your custom root domain for Render, add an ANAME
or ALIAS
record for your root domain to point to your app’s Render subdomain. For example, if your app subdomain is example.onrender.com
and your custom domain is example.com
, you should add an ANAME
or ALIAS
record for example.com
and point it to example.onrender.com
.
Using an A
Record
If your DNS provider does not support ANAME
or ALIAS
records or CNAME
flattening, you will need to add an A
record to point to your Render app. A
records point to IP addresses, and you can use 216.24.57.1
to point your root domain to Render’s load balancer IP.
Configuring www and other subdomains
For non-root domains, you should always add a CNAME
record pointing to your app’s Render subdomain. For example, if your Render subdomain is example.onrender.com
and your custom domain is www.example.com
, you should add a CNAME record for www
and point it to example.onrender.com
.