一、查看网站是否使用了CDN

执行：nslookup XXX 命令

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➜  hexo-blog nslookup clashdingyue.tk
Server:         172.17.112.1
Address:        172.17.112.1#53

Non-authoritative answer:
Name:   clashdingyue.tk
Address: 185.199.110.153
Name:   clashdingyue.tk
Address: 185.199.109.153
Name:   clashdingyue.tk
Address: 185.199.111.153
Name:   clashdingyue.tk
Address: 185.199.108.153
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➜  hexo-blog nslookup wohensha.tk
Server:         172.17.112.1
Address:        172.17.112.1#53

Non-authoritative answer:
Name:   wohensha.tk
Address: 172.67.165.231
Name:   wohensha.tk
Address: 104.21.49.190

两个或两个以上Server IP，则表明使用了CDN，只有一个则表明没有。

  • Github CDN：185.199.110.153、185.199.108.153…
  • CloudFlare CDN：172.67.165.231、104.21.49.190

二、测试两个CDN哪一个在墙内，速度更好

CloudFlare CDN

略

Github CDN

image-cdn

image-cdn

(￣▽￣)，半斤八两，感觉Github CDN好点