https://dns.adguard.com/info.txt is showing different servers when using website & different browser on same machine/device?!

pictosun commented 1 week ago

Platform

Other

Protocol

DNS-over-HTTPS

Do you use AdGuard app?

No I don't

Your configuration

every device (mobile or pc/mac) is behaving the same.

When using the link to check which server I'm on (https://dns.adguard.com/info.txt) it shows different results when using different browsers on the same machine/device. And when using the website it shows another server where I'm on.

Shouldn't it be all the same server as I'm using .mobileconfigs on my machines/devices

Traceroute to AdGuard DNS

./.

Issue Details

take a device which is using AdGuard-DNS as .mobileconfig (or somehow else) On that machine:
go to https://dns.adguard.com/info.txt with browser a
go to https://dns.adguard.com/info.txt with browser b
go to https://adguard-dns.io/en/welcome.html and scroll down to the map and check which server you're using

for me I'm getting different results dns2-dp-fra-4 / 7 / 17 / 8 and so on.

Expected Behavior

Expected behaviour should be that I'm always on the same server (I know that can change, but not when checking parallel at the same time).

Actual Behavior

Like I said the server is changing when using different browser or website-view.

Screenshots

Screenshot 1:

Additional Information

No response

ameshkov commented 1 week ago

No worries, that's okay. We have many different servers in a single location and you'll be connected to a random one every time.

pictosun commented 6 days ago

No worries, that's okay. We have many different servers in a single location and you'll be connected to a random one every time.

Thanks for the feedback. But why do the browsers connect to different servers if I do have a .mobileconfig running (is this due to the utilization of the servers)?

And could maybe the issue from #777 be correlated to this point if the connected server is changing?

ameshkov commented 6 days ago

@pictosun well, the load on a single location is higher than any single server can manage so there's that. All these servers have the same IP address and when establishing a connection your traffic will be randomly routed to one of them. This is called "anycast IP" and it's a standard technique for highload & distributed services.

Tbh, I don't think that there's any correlation with #777.

AdguardTeam / AdGuardDNS