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Copilot Lvl 2
Message 1 of 2

Clarification using both www subdomains and custom subdomains

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This section of the docs states "We strongly recommend that you use a www subdomain" and then goes on to say that "A custom subdomain is a type of subdomain that doesn't use the standard www subdomain part"

 

What if I wanted to do both? use a custom subdomain and www at the same time. For example:

"www.blog.example.com"

Would I still get the 3 mentioned benefits of using "www" (CDN, DOS protection, etc.) while also being able to use the "blog" subdomain?

From my limited DNS experience, I don't see how "www.blog.example.com" would be any different than "www.example.com", but I don't know what is happening on the github pages side of things and the documentation isn't 100% clear.

 

Any clarification will be greatly appreciated!

Thanks

 

Edit: Also, for the CNAME file in the github repo is it suggested to put "blog.example.com" or "www.blog.example.com"? Are both equivalent? (assuming you have www CNAME setup on your DNS provider too).

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Community Manager
Message 2 of 2

Re: Clarification using both www subdomains and custom subdomains

To my understanding, for the purposes of the documentation, everything before `.example.com` can be considered the "subdomain". Because of this, `www.blog` does not equal `www` and would not get all or possibly any of the mentioned benefits.

 

As for what to put in the `CNAME` file in the repository, you would put the fully-qualified domain name that you wished to use in the file. So if you choose to use `www.blog.example.com`, then you would put `www.blog.example.com` in your `CNAME` file.

 

I hope that helps!