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by lxgr 1126 days ago
Where are you actually located?

1.1.1.1 does not support the EDNS client subnet header [1], which means that practically, the CDN's DNS server will see your request as originating from your nearest 1.1.1.1 resolver.

8.8.8.8 does, so if the CDN evaluates it, you might get a better match (or a worse one!)

[1] https://developers.cloudflare.com/1.1.1.1/faq/#does-1.1.1.1-...
1 comments
miyuru 1126 days ago
EDNS makes a huge difference as many CDNS still use it.

Here is a test I did 4 years back. https://blog.miyuru.lk/edns-geo-table-2019/

I have a tinfoil-hat theory that CF removed EDNS support to make other CDNs slow and make their own CDN look good, but if there's a CF POP nearby it does not make much difference.

link