Dead Domain Discovery

by Lauritz · security.lauritz-holtmann.de · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Scans the page for external iFrames, Scripts, and Styles, logs them to the console, and checks if their domains are resolvable.

Users

−5 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#110K

#91K among extensions

Version

0.7.2

updated 8 Jan 2025

Users

monthly, 2 years

Latest, 16 Oct 2026: 49 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 16 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 Dead Domain Discovery

This Chromium extensions aims to identify abandoned domains that are referenced by a website for instance within an iFrame, as script or as CSS source. If an abandoned domain is used within these sinks, which can be registered by malicious actors, this could for instance lead to Cross-Site Scripting or website defacement vulnerabilities. Features: • Gather relevant sources, keep track of previously encountered domains. • Lookup domains and send a Chrome Notification in case a domain lookup fails. • History of findings. • Config: Exclude domains from analysis, set cache lifetime.