I am sure you realize, but by pointing to Google DNS, you are making your CDN edge request performance worse (in general). CDNs using GeoDNS will assume your l

I am sure you realize, but by pointing to Google DNS, you are making your CDN edge request performance worse (in general). CDNs using GeoDNS will assume your location is the google DNS servers[1], and will use the closest edge node. You would likely get better performance with some sites (those using big expensive CDNs) if you pointed to your ISP's recursors (or used unbound to be your own). [1]: Google's DNS servers are likely anycast multi-homed as well, so it may not be quite as bad as if google only had a couple of centrally located servers. It would still likely skew your closest CDN Edge node a bit.