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Google DNS, Open DNS or your ISP DNS servers?

Posted by jpluimers on 2017/05/26

There are various arguments for using Google DNS ( or or Open DNS servers or not. A few are listed here:

It basically comes down to two things:

  1. DNS speed
  2. CDN speed (Contend Delivery Network providers like CloudFlare, Akamai, etc)

If your DNS server isn’t close to you, it might select a CDN server that is far from you. If you rely on CDN, then you need to weight in that factor.

This is how I decide:

  • devices not needing CDN: use Google DNS or Open DNS
  • devices needing CDN: use Namebench to pick fast DNS servers that are nearby based on Namebench reports with “Recommended configuration (fastest + nearest)”


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