In the Comet Cache Dashboard (see: WordPress Dashboard → Comet Cache → Plugin Options → Static CDN Filters → CDN Host Name), clicking on the MaxCDN tutorial link will redirect the site owner to the CometCache.com homepage.
Instead, it should be redirected to this: https://cometcache.com/kb-article/how-do-i-setup-static-cdn-filters-with-maxcdn/.

Using the following setup:
- Comet Cache™ Pro v160917
- WordPress v4.6.1