TechBench by WZT (tb.rg-adguard.net/public.php) is a widely trusted, third-party web interface that generates direct, official download links from Microsoft’s servers for Windows ISOs and Office packages. The site is frequently recommended in technical forums for accessing older software versions and bypassing the Media Creation Tool, offering safe, untouched files directly from software-download.microsoft.com. For a user-driven discussion on the site's safety, see the Reddit thread in r/techsupport.
AdGuard maintains a list of known tracking domains (e.g., google-analytics.com, facebook.com/tr). When a website tries to send your data to a tracker, AdGuard (Desktop or Browser Extension) intercepts the request. In older versions, the URL was rewritten to tb.rg.adguard.net/public.php. The request is sent to AdGuard's server, which then returns a harmless 1x1 transparent pixel or a 204 No Content response. This prevents the browser from showing a "broken image" error while still stopping the tracker.
How does tb.rg adguard.net public.php work? tb.rg adguard.net public.php
By utilizing the tb.rg adguard.net public.php script, AdGuard users can enjoy several benefits:
Use tcpdump or Wireshark:
Cause: A poorly coded website detects that its primary tracker is blocked. It then tries to send data to a fallback tracker. That fallback tracker is also blocked, so it sends to a third. Eventually, the script attempts to send data to AdGuard's endpoints at tb.rg out of desperation.
When AdGuard blocks a tracking script (like Google Analytics, Facebook Pixel, or a generic ad tracker), it often does not simply block the connection entirely (which can break website functionality). Instead, it redirects the request to a safe, empty placeholder hosted by AdGuard. This placeholder is hosted at the adguard.net domain. TechBench by WZT (tb
This analysis is based on the structure of the URL and the known behaviors of AdGuard, DNS filtering, and telemetry endpoints.
: Once downloaded, you can mount the ISO to install it directly, or use a tool like to create a bootable USB drive. Microsoft Learn Is it safe? Scenario A: The Reverse Proxy (Most Likely) AdGuard