$ curl -I https://cdn.rawgit.com/sindresorhus/awesome/master/readme.md
etag: "1218d241f6c717fa83d0f1afa64809d6ce7451c8"
$ curl -I https://raw.githubusercontent.com/sindresorhus/awesome/maste...
ETag: "1218d241f6c717fa83d0f1afa64809d6ce7451c8"