What you should take away:
If you see it being blocked and suspect a false positive, add it to your allow list. First, verify it’s legitimate by accessing it in a browser – https://tb-rg.adguard.net – but note: many backend DNS endpoints do not serve HTTPS web pages (expect a 404 or timeout).
Have you found other strange AdGuard domains in your logs? Drop them in the comments below and let’s decode them together!
AdGuard DNS supports DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT). TB-RG blocking over encrypted transports because classification happens on AdGuard’s servers, not client-side.
What you should take away:
If you see it being blocked and suspect a false positive, add it to your allow list. First, verify it’s legitimate by accessing it in a browser – https://tb-rg.adguard.net – but note: many backend DNS endpoints do not serve HTTPS web pages (expect a 404 or timeout).
Have you found other strange AdGuard domains in your logs? Drop them in the comments below and let’s decode them together!
AdGuard DNS supports DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT). TB-RG blocking over encrypted transports because classification happens on AdGuard’s servers, not client-side.