Once your site is upgraded to the paid plan, you can configure your site to be served on a custom domain. Aerobatic will provision a wildcard SSL certificate for your domain using the AWS Certificate Manager. Wildcard certificates cover your apex, aka “naked”, domain and all subdomains. This allows you to cover all your deploy stages using the same certificate, for example:
Depending on your DNS provider (more on this below), you can use apex (aka “naked”) domains:
You can also re-use the same domain + certificate across multiple paid websites:
Registering a new custom domain with wildcard certificate is done via the CLI. From the root of the website that you want to attach the domain, simply run the following command:
$ aero domain --name mydomain.com --subdomain www
Or if you want to run your site at the apex (i.e. “naked domain”), then specify “@” as the sub-domain:
$ aero domain --name mydomain.com --subdomain @
See the aero domain command for more details.
The first step after running the
aero domain command is to validate you are the owner of the domain. This is done by creating a special CNAME record with your DNS provider. Very soon after you request the domain with the command above, an email will be sent to you with the CNAME details. You can also run the
aero domain command again (without any arguments) which will provide the same info.
The validation record will look something like so:
If interested, you can read more about the validation process in the ACM documentation.
Some domain registrars such as Namecheap do not allow an “_” character in a CNAME value. In this case you will need to transfer your nameservers over to a different DNS provider. We recommend any of the providers listed in the apex domains section below. Cloudflare is free to use for basic DNS services, see our Namecheap to Cloudflare directions.
Once domain ownership is validated, the domain provisioning process will commence. This takes roughly 40 minutes to complete. Once complete, you will receive an email from
email@example.com with instructions on how to configure the actual DNS records that cause your domain to resolve to the Aerobatic CDN. You can also run the
aero domain command (with no arguments) to get the latest status.
Do NOT delete the validation CNAME. It will be re-checked every time the SSL certificate is auto-renewed.
Once your domain is provisioned on the Aerobatic CDN, the next step is to create records with your DNS provider so that your domain resolves to your Aerobatic website. We recommend a single wildcard (aka catch-all) CNAME if your domain provider supports it. That way you only have to configure a single DNS record that covers all website subdomains and staging aliases.
Any named subdomain CNAMEs that point somewhere other than Aerobatic will take precedence over the wildcard (so the same domain can be used for non-Aerobatic sites). If you prefer not to use a wildcard, or your DNS provider doesn’t support it, you can of course create each CNAME separately:
The apex or “naked” domain is the root domain, sans any subdomain, i.e.
https://yourdomain.net. Many prefer this simplified format for their website URLs. As long as your DNS provider supports CNAME-like functionality at the zone apex you can load your Aerobatic websites via their apex URL. Providers generally refer to these as
ANAME records. Here are some of the providers that have an offering:
Domain providers that support one of the flavors of CNAME-like at the apex include:
Some providers, such as Namecheap, technically allow you to define a
@ that will route your apex domain correctly. But be aware, this will likely break email for your domain. This is because the
@ record takes precedence over any
MX mail records.
We suggest you ONLY utilize the apex domain if your DNS provider has special
ALIAS/ANAME record types specifically intended to handle it. The alternative is a
CNAME for each website like
If your DNS provider does not support
ALIAS records and it’s not possible to switch, then your best bet is to redirect the apex URL to a CNAME like
www. Below are two possible ways to configure this:
Many providers let you define a URL redirect record that will redirect the apex to any URL of your choice. In this case you would want to point to
Use a service called ARecord which provides a static IP address to assign to an
A record. Their service will redirect requests from the apex to
These redirect solutions only work for an http request, NOT https. If a user types “yourdomain.com” into their browser, the above solution will work since the browser defaults to http in the absence of a protocol. But the ONLY way to make
https://yourdomain.com work is to use one of the aforementioned DNS providers that support
ALIAS record types.
When using Cloudflare in front of your Aerobatic custom domain there are a few considerations to keep in mind:
If you do choose to enable the Cloudflare Proxy/CDN functionality, then make sure the following settings are made:
If your current domain provider does not provide
ALIAS/ANAME record types and you really want to host your site on the apex domain, we recommend transferring your name server records to Amazon Route 53. Route 53 can has a special relationship with CloudFront which is the CDN that Aerobatic uses to host your custom domain and SSL certificate.
You’ll want to create two record sets, an
A record for your apex domain and a second
CNAME for your
www subdomain which will automatically redirect to your apex domain as long as the website subdomain is set to
@ in the Aerobatic hosting settings.
|Name||Type||Alias||Alias target or Value|
Namecheap is a popular service for getting a good deal on a domain name, but their DNS management leaves much to be desired. In addition to not supporting ANAME records for apex domains, it also does not support the
\_ character in a
CNAME which the domain validation record requires. For many users, the easiest and cheapest solution is to transfer the domain nameserver over to Cloudflare.
Now you should be able to create the validation CNAME in Cloudflare without any problems. Your final set of DNS records when fully configured for Aerobatic will look something like below. The 2nd
CNAME record with the leading “_” is the domain validation record. The others are for the actual custom domain resolution to your Aerobatic CDN distribution.
Note the grayed out icon in the Status column. This indicates that only the Cloudflare DNS services are being utilized.
In order for your apex (aka naked) domain to resolve to Aerobatic you need to use Cloudflare CNAME flattening. First delete the automatically generated A record that points to an IP address. Then create a CNAME with the value “@” that points to the
*.cloudfront.net domain assigned to your Aerobatic domain. The 3rd record in the screenshot above represents the flattened apex CNAME.
When using deploy stages for websites whose production URL is at the apex, the stage name becomes a subdomain: