The best replacement for maxcdn is cloudflare.

The best alternatives to maxcdn are rated as following:
★★★★★  cloudflare
★★★★  cloudfront
★★★  akamai
★★★  edgecast
★★  amazon cdn
★  cdn77
  cachefly

Your alternative for maxcdn is not listed? Suggest!
Speaking about maxcdn, one probably shouldn't forget about super cache.

Other search terms related to maxcdn and their ratings are:
★★★★★ super cache
★★ cloudflare
You have in mind a companion for maxcdn and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of maxcdn in all years. Click on graph for more.
maxcdn
cloudflare
cloudfront