AdGuard DNS SDE Demo

by Adguard Software Limited · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 19 Oct 2026

This extension demonstrates how Structured DNS errors can work if supported natively by browsers.

Users

−7 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#88K

#74K among extensions

Version

0.1.1

updated 10 Jan 2025

Users

monthly, 11 months

Latest, 19 Oct 2026: 89 usersMove the mouse over the chart for any month

Ratings count

monthly, 11 months

Latest, 19 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About AdGuard DNS SDE Demo

This browser extension demonstrates how Structured DNS errors can work if supported natively by browsers. It listens for web requests and identifies loading errors on main frames. When an error is detected, it queries the AdGuard DNS DoH (DNS-over-HTTPS) service with structured DNS errors enabled to check if the page was blocked. More information about Structured DNS errors can be found here: https://github.com/AdguardTeam/dns-sde-extension If AdGuard DNS has blocked the page, the extension displays a custom block page with detailed information about the block retrieved from the SDE metadata.