I've actually never accepted donations. I paid the meager cost of the $10/month DigitalOcean droplet for the origin server, and StackPath (formerly MaxCDN) sponsored the CDN, which handled the majority of RawGit's traffic.
Once, I worked out how much the CDN bill would have been if StackPath hadn't sponsored me and my head nearly exploded. So yeah, I definitely couldn't have done it without them!
HTTP/1.1 200 OK
Date: Fri, 12 Oct 2018 17:56:30 GMT
Content-Type: application/json;charset=utf-8
Transfer-Encoding: chunked
Connection: close
X-Content-Type-Options: nosniff
X-Robots-Tag: none
Access-Control-Allow-Origin: *
ETag: "9c153866d0cad7024c0f31eb7b65be11582a6737"
Cache-Control: max-age=86400
Vary: Accept-Encoding
RawGit-Cache-Status: HIT
Server: NetDNA-cache/2.2
Strict-Transport-Security: max-age=31536000; preload
X-Cache: HIT$ curl -I https://cdn.rawgit.com/sindresorhus/awesome/master/readme.md
etag: "1218d241f6c717fa83d0f1afa64809d6ce7451c8"
$ curl -I https://raw.githubusercontent.com/sindresorhus/awesome/maste...
ETag: "1218d241f6c717fa83d0f1afa64809d6ce7451c8"