Avoid any 404 File not found errors on your WordPress-Site by redirecting the request to the closest match found in the sitemap.xml.
Optimize your SEO rankings and keep users happy by serving alternative content of 404 File not found requests.

If a request will end up in a 404 error, this plugin redirects the request to the closest similar spelling url in your blog.
The 301 redirect is done by using the “Levenshtein distance algorithm” to find the closest match.
The recommended plugin to generate the required sitemap.xml for nm404 is Better WordPress Google XML Sitemap.


  • no more 404 errors
  • no manual configuration necessary
  • better search results
  • better seo ranking
  • better browsing experience on your website
  • statistics of 404 error requests / redirects

Plugin is translated in

  • English
  • German


  • nm404 Configuration


  • Install any sitemap plugin like Better WordPress Google XML Sitemap to generate the needed sitemap.xml for nm404
  • Activate the plugin nm404
  • Optionally configure the settings of nm404 for better speed or better result


How do I configure “no more 404”?

You can set the URL of you sitemap.xml and the number of records to be parsed in the admin backend. No more configuration is required.
It simply does what it is supposed to.

Why some redirections seem to take too long?

For some blogs with more than 10000 articles for example, it could take a little bit to search on that larger sitemap.xml the appropiate match for the request.
To avoid a delay you may either cache your sitemap.xml (e.g. through varnish) or put a static sitemap.xml in your document-root.

Will the plugin get any enhancements in future?

We are continuously improving this plugin. In future it will be possible to configure some nice options, so stay tuned!


Before I found this plugin, I use permalink finder but seems that the code is not updated and generates php warning in my hosting. This plugin works very well and it is a good idea to catch the sitemap as a references. Btw I use google xml sitemap, the old one sitemap plugin and generated on the fly, you can see it in my web http://ideusahaku.com/sitemap.xml Since this plugon refer to sitemap xml, does it also support redirect to neaerest category or tag?
Read all 7 reviews

Contributors & Developers

“nm404” is open source software. The following people have contributed to this plugin.


“nm404” has been translated into 1 locale. Thank you to the translators for their contributions.

Translate “nm404” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Updated Details


  • Updated Support Contact


  • Statistics Improvement


  • Updated Support Page


  • Admin Layout Update / Added Video Tutorial


  • fixed bug in queue logic


  • fixed typo


  • bugfix


  • reworked nm404 public release