What is Link Checker?

Link Checker focuses on finding broken website links that lead visitors to errors such as 404 pages. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Link Checker for?

Link Checker is a B2B product built for website owners and web developers.

Is Link Checker free?

Yes — Link Checker is free to use.

What platforms does Link Checker run on?

Link Checker runs on the web and embeddable surfaces.

Is Link Checker still maintained?

Unverified. Link Checker has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Link Checker?

Similar projects tracked by PulseGate include Check Web links, Link Structure Checker, and Simple Link Checker.

Who develops Link Checker?

Link Checker is developed by broken-link-scanner-tool.

When did Link Checker launch?

Link Checker first shipped in 2025.

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Link Checker

Name: Link Checker
Author: broken-link-scanner-tool

mozilla.orgBrowser DevTools & extensions

Link Checker is a Firefox extension that scans websites and checks URLs for broken links, including links that return errors such as 404 pages. It supports automated or manual link checking for website owners and developers.

FreeWebEmbeddableCloud-managed

Visit mozilla.org

3alternatives

5features

2025since

Overview

5 features

In the Browser DevTools & extensions space, Link Checker takes a focused approach. It focuses on finding broken website links that lead visitors to errors such as 404 pages. Link Checker is a B2B product aimed at website owners and web developers. Link Checker costs nothing to use. It runs on the web and embeddable surfaces.

It is developed by broken-link-scanner-tool, and it first shipped in 2025. Key capabilities include broken link scanning, URL checking, and automated checking. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Broken link scanning
URL checking
Automated checking
Manual checking
Firefox integration

Built with & integrations

Runs on

BrowserEmbeddableCloud-managed

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed19 Sep · 05:11 UTC
Link Checker verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Link Checker

What is Link Checker?: Link Checker focuses on finding broken website links that lead visitors to errors such as 404 pages. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Link Checker for?: Link Checker is a B2B product built for website owners and web developers.
Is Link Checker free?: Yes — Link Checker is free to use.
What platforms does Link Checker run on?: Link Checker runs on the web and embeddable surfaces.
Is Link Checker still maintained?: Unverified. Link Checker has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Link Checker?: Similar projects tracked by PulseGate include Check Web links, Link Structure Checker, and Simple Link Checker.Check Web links Link Structure Checker Simple Link Checker
Who develops Link Checker?: Link Checker is developed by broken-link-scanner-tool.
When did Link Checker launch?: Link Checker first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: website owners and web developers
Model: B2B
Solves: Finding broken website links that lead visitors to errors such as 404 pages.

Registered as

Firefox Add-ons: link-checker

Developer

broken-link-scanner-tool

Index record

Indexed: 19 Sep 2026
Lifecycle: Alive
Last seen: 19 Sep 2026

Identity audit (13)

Slug: link-checker-mozilla-org
Lifecycle state recorded: 19 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 19 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 19 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/link-checker

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