So those using smart dns providers like getflix, unlocator etc which provide selective proxy to bypass geo-restrictions or those who have built a similar solution for themselves in the cloud won't be able to use their own dns? Very poor choice for an isp, in my opinion. What I've personally seen is that it's only isps with a very large variation in quality between pure (non peered) bandwidth and peered bandwidth or self served cache that resort to this.The reason why DNS is auto-forwarded to local Excitel DNSes is because most users have some DNSses configured by someone who has no knowledge of how things are working and those users will suffer from bad experience due to this and blame Excitel and it's really difficult to explain everyone what is the right DNS that they should use and why....
Can confirm that. CDNs are the only way I can reliably stream from servers in SE Asia and Europe. From my experience non-CDN servers don't really offer the same level of performance as most of us need. Especially if streaming 4K and beyond.India my dear is not well connected to the world therefore Peering/CDN is the only way to have good experience for most of the services.
This though is something I find quite surprising! From what I know, Google supports EDNS Client Subnet guidelines, unlike Cloudflare, which means it should be better for on-prem peering and the like. Is there something more to it?Believe it or not but exactly Google's dnses create problems with many of the other CDNs/Peering providers
And I certainly would not opt for an isp that forces its choice of dns servers on me.