Best 404 checker plugins for WordPress
The most popular 404 checker plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Snagbane Link Scanner leads with fewer than 10 active installs, ahead of PlugUpp Link & Image Health Audit (fewer than 10) and CubeMage Smart Link Checker (fewer than 10). All 3 plugins tagged “404 checker” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
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Top 3 404 checker plugins
- 1.
Snagbane Link ScannerThe most installed 404 checker plugin, with fewer than 10 active installs. No reviews yet, updated 1 month ago.
- 2.
PlugUpp Link & Image Health AuditFewer than 10 active installs. No reviews yet, updated 2 weeks ago.
- 3.
CubeMage Smart Link CheckerFewer than 10 active installs. No reviews yet, updated 11 months ago. Tested only up to WordPress 6.8.12.
All 3 plugins tagged “404 checker”
Snagbane Link Scanner
#53,823by snagbane1 month ago
Broken link checker that tells a real 404 apart from a page just blocked by a firewall -- instead of calling both "broken."
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
PlugUpp Link & Image Health Audit
Up in the last 7 days:17,692#55,173by PlugUpp20 days ago
Broken link checker, broken image checker and mixed content checker in one, auditing your pages' final rendered output on your own server. No quotas.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
CubeMage Smart Link Checker
#67,826by CubeMage11 months ago
A lightweight broken link checker for WordPress. Detects 404 errors, monitors affiliate links, and scans content with adjustable server load settings.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day