When you see the full string tbrg.adguard.net/public.php?upd , you are looking at a specific script request:
The software checks to see if a newer version of the app is available to ensure security patches are applied.
If you are a privacy maximalist and want to minimize all background pings, you can usually control this behavior within the AdGuard settings: Go to General / Advanced. tbrg adguardnet publicphp upd
When your AdGuard client (whether it’s the Windows app, the Mac version, or the Android/iOS mobile app) pings this URL, it is essentially asking the AdGuard servers: "Are there any new filter rules or software updates I need to download?" Why is this keyword appearing in my logs?
Depending on your settings, AdGuard may send basic info (like which version you're on) to help them balance server loads. Is it Safe? When you see the full string tbrg
or adjust the Filter update interval.
If you are using a network monitoring tool like , Wireshark , or even the built-in filtering logs of another firewall, you will see this URL frequently. Here is why: Depending on your settings, AdGuard may send basic
: This is a query parameter. In web development, "upd" is almost always shorthand for "update."