How does gitcafe bind the xxx.com domain name, not www.xxx.com

Question

Gitcafe prompts that only cname can be used. Can it only be accessed through www.xxx.com and cannot be accessed through xxx.com?

http://xdxd.love It’s ok. Thank you all.

Answer 1

Since CNAME resolution generally does not support the top-level domain name, that is, the domain name of xxx.com, we must find a way to resolve it to type A, that is, resolve it to the IP address.

Post a feeling that I just parsed: http://fafuli.club/test.html, original address: http://wucao.gitcafe.io/test.html

This method also applies to GitHub!

First find the IP address corresponding to xxx.gitcafe.io

You can use Windows ping command:

Set up A domain name resolution

Fill in the record value with the IP address obtained in the previous step

Configure the xxx.com domain name on gitcafe

Answer 2

Gitcafe没试过，不过Github Pages是完全没有限制的，cname是去你的域名提供商哪里进行绑定解析的，我用的的是DNSPOD, put

mikicomo.github.io

Resolved

mikicomo.info

Answer 3

Www operates as you want. For domain name resolution, the two are equivalent.

Answer 4

This approach is not allowed in the RFC standard, but many DNS implementations support binding CNAME on top-level domain names...

http://serverfault.com/questions/613829/why-cant-a-cname-record-be-used-at-the-apex-aka-root-of-a-domain