Is 404 Notifier free?

Yes, 404 Notifier is free to use. It is available as a free plugin on WordPress.org.

How many websites use 404 Notifier?

404 Notifier has 700 active installations as tracked by WordPress.org.

What are the best 404 Notifier alternatives?

Popular alternatives to 404 Notifier include Redirection, Smart Custom 404 Error Page, Redirection. You can compare them side-by-side on our comparison pages.

Does 404 Notifier work with the latest WordPress?

404 Notifier has been tested up to WordPress 6.0.11. It requires WordPress 3.6+ and PHP false+.

404 Notifier — Reviews, Rating & Alternatives (2026)

Name: 404 Notifier
Rating: 3 (2 reviews)
Author: Crowd Favorite

As of April 2026, 404 Notifier is a WordPress 404 plugin with 700 active installations and a 3/5 rating from 2 reviews. It has been downloaded 61K+ times in total. Requires WordPress 3.6+ and PHP false+. Available on WordPress.org since 2006. Last updated 3 years ago — may have compatibility concerns. Top alternative: Redirection.

3/52 reviews

700active installs

61K+total downloads

20 yearssince 2006

Overview

If you’ve decided to move things around on your site, you might overlook a few redirects and end up with some broken URLs. This will help you catch those so you can take care of them.

Read full description on WordPress.org