404 Solution


404 Solution logs 404s and allows them to be redirected to pages that exist. Redirects can also be created based on the best possible match for the URL the visitor was most likely trying to reach.


  • Redirect 404 URLs to existing pages or ignore them.
  • Automatically create redirects based on the URL the visitor was most likely trying to visit.
  • Get a list of 404 URLs as they happen.
  • View logs of hits to 404 pages and redirects including referrer data.
  • WooCommerce compatible – pages, posts, products, and custom post types are supported.
  • Create automatic redirects for any URL resolving to a single page or post that isn’t the current permalink.
  • Display a list of page suggestions on a custom 404 page with a shortcode (custom 404 page not included).
  • Basic plugin usage statistics.
  • Automatically remove redirects when the URL matches a new page or post permalink.
  • Automatically remove manual and automatic redirects once they are no longer being used.

Convert your 404 traffic by providing your visitors with a better browsing experience and eliminate 404 URLs on your site.


  • Admin Options Screen
  • Logs
  • Create New Redirect


  1. Unzip the files and upload the contents to /wp-content/plugins/.
  2. Activate the plugin.
  3. Use the Settings -> 404 Solution options page to set the options.


Installation Instructions
  1. Unzip the files and upload the contents to /wp-content/plugins/.
  2. Activate the plugin.
  3. Use the Settings -> 404 Solution options page to set the options.
How long does it take for 404 URLs to start showing up?

As long as the “Capture incoming 404 URLs” option is enabled in the options section, the 404 URLs will show up in the captured list as soon as a visitor hits a 404 page.

Will there be a slow down on my site when running the plugin?

No, there should be no noticeable slow down when running the plugin on your site.

Will this plugin redirect my pages if I change my permalinks structure?

Yes! 404 Solution records the page/post ID number and looks up the most current permalink before redirecting the user.

Can I redirect all 404’s to a particular page?

Yes. It’s as easy as turning on this feature in the options.

How do I delete log files? How do I purge log lines?

Deleting old log lines to limit disk space usage is done automatically. You can set the maximum size to as low as 1MB under Options -> General Settings -> Maximum log disk usage.


Among the Most Useful Addons for WordPress

I now use this plugin in all websites I migrate to WordPress from any other platform, in all sites that have been through many editorial changes and in some sites just because it is amazing the number of badly formatted backlinks a site attracts over its lifetime.

Where do we send donations to help fund development of 404 Solution?

Excellent 404 Logging & Control

Prior to using 404 Solution a number of tools/techniques were used to try and manage 404 errors. Not only from changes within the site, but many from years of changes prior and moving from (.aspx) to (.php) platforms. Redirecting prior web platforms was not always reliable, 404 Solution recognizes these links and redirects just Beautifully!

Error logging is Extremely helpful when the desire is to track every incoming link to assure visitors are getting to the correct section. Providing a much more pleasant user-experience, vs just redirecting all to home or just search engine errors.

404 Solution is non-intrusive and clean design, very reliable on single & multi-site – really helps to tailor site experience and remove all page errors within Google/Bing tools.

A great program

It really is a great program and much better than a simple redirect to the home page. Intelligent redirects have to be a better way to keep your ranking on search engines and customers happy.

The support is second to none.

Read all 14 reviews

Contributors & Developers

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


Translate “404 Solution” into your language.

Interested in development?

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


Version 2.6.0 (February 2, 2018)

  • Feature: Use RegEx (regular expressions) to match URLs and redirect to specific pages.
  • Feature: New option: The Settings menu can be under “Settings” or at the same level as the “Settings” and “Tools” menus.
  • Feature: Optionally send an email notification when a certain number of 404s are captured.
  • FIX: Delete old redirects based on when they were last used instead of the date they were created.
  • Improvement: Allow ordering redirects and captured 404s by the “Last Used” (most recently used date) column on the admin page.
  • Improvement: Add the logged in “user” column to the logs table.
  • Improvement: Matching categories and tags works a little better than before.
  • Improvement: Use a faster, more memory efficient Levenshtein algorithm.

Version 2.5.4 (December 18, 2017)

  • Improvement: Improved error message for the customLevenshtein function.
  • FIX: Handle a version upgrade without an SQL error when the old logs table doesn’t exist
    (thanks to the user error reporting option).

Version 2.5.3 (December 6, 2017)

  • FIX: Work with URLs longer than 255 characters (for lestadt).

Version 2.5.2 (December 3, 2017)

  • FIX: Work with PHP version 5.2 again (5.5 required otherwise) (thanks Peter Ford).

Version 2.5.1 (December 3, 2017)

  • FIX: Work with PHP version 5.4 again (5.5 required otherwise) (thanks moneyman910!).

Version 2.5.0 (December 2, 2017)

  • FIX: Avoid a critical issue that may have caused an infinite loop in rare cases when updating versions.
  • Feature: Add an option to email the log file to the developer when there’s an error in the log file.
  • Feature: Add the [abj404_solution_page_suggestions] shortcode to display page suggestions on custom 404 pages.
  • Improvement: Optimize the redirects table after emptying the trash (thanks Christos).
  • Improvement: Add a button to the “Page Redirects” to scroll to the “Add a Manual Redirect” section (for wireplay).
  • Improvement: Remove the page suggestions on/off option. To turn it off, don’t include the shortcode.
  • FIX: Ordering redirects and 404s by the ‘Hits’ column works again (broken in 2.4.0) (thanks Christos).
  • FIX: Duplicate redirects are no longer created when a user specified 404 page is used.

Version 2.4.1 (November 27, 2017)

  • FIX: Make the ‘Empty Trash’ button work for lots of data (for Christos).

Version 2.4.0 (November 26, 2017)

  • Improvement: Major speed improvement on ‘Redirects’ and ‘Captured’ tabs when there are lots of logs.

Version 2.3.2 (November 25, 2017)

  • Improvement: Minor efficiency improvements to work better on larger sites.

Version 2.3.1 (November 24, 2017)

  • FIX: Try to fix the Captured 404 URLs page when there is a lot in the logs table (for Christos).

Version 2.3.0 (November 10, 2017)

  • Improvement: Add an “Organize Later” category for captured 404s (for wireplay).
  • Improvement: Add an advanced option to ignore a set of files or folders (for Hans Glyk).

Version 2.2.2 (November 5, 2017)

  • FIX: The first usage of the options page didn’t work on fresh installations (Lee Hodson).

Version 2.2.1 (November 4, 2017)

  • FIX: The options page was unusable on fresh installations (Lee Hodson).

Version 2.2.0 (October 29, 2017)

  • FIX: Display child pages under their parent pages on admin screen dropdowns (for wireplay).

Version 2.1.1 (September 24, 2017)

  • FIX: Order the list of pages, posts, etc in dropdown boxes again (broken since 2.1.0. thanks to Hans im Glyk for reporting this).

Version 2.1.0 (September 23, 2017)

  • Improvement: Don’t suggest or forward to product pages that are hidden in WooCommerce, for ajna667.

Version 2.0.0 (September 20, 2017)

  • Improvement: Speed up the Captured 404s page for blankpagestl.

Version 1.9.3 (September 16, 2017)

  • FIX: Try to fix Rickard’s MAX_JOIN_SIZE issue.

Version 1.9.2 (September 15, 2017)

  • FIX: Try to fix techjockey’s out of memory issue on the options page with an array.

Version 1.9.1 (September 14, 2017)

  • FIX: Try to fix techjockey’s out of memory issue on the options page.

Version 1.9.0 (August 12, 2017)

  • FIX: Allow manual redirects to forward to the home page.
  • Improvement: Support user defined post types (defaults are post, page, and product).
  • Improvement: Change “Slurp” to “Yahoo! Slurp” and add SeznamBot, Pinterestbot, and UptimeRobot to the list of known bots for the do not log list.

Version 1.8.2 (August 8, 2017)

  • FIX: Verify that the daily cleanup cron job is running.
  • FIX: Include post type “product” in the spell checker for compatibility with WooCommerce (fix part 1/?).
  • FIX: Ignore characters -, _, ., and ~ in URLs when spell checking slugs (for ozzymuppet).

Version 1.8.1 (June 13, 2017)

  • Improvement: Add a new link and don’t require a link to view the debug file (for perthmetro).

Version 1.8.0

  • Improvement: Do not create captured URLs for specified user agent strings (such as search engine bots).

Version 1.7.4 (June 8, 2017)

  • FIX: Try to fix issue #19 for totalfood (Redirects & Captured 404s Not Recording Hits).

Version 1.7.3 (June 2, 2017)

  • FIX: Try to fix issue #12 for scidave (Illegal mix of collations).

Version 1.7.2 (June 1, 2017)

  • FIX: Try to fix issue #12 for scidave (Call to a member function readFileContents() on a non-object).

Version 1.7.1 (May 27, 2017)

  • FIX: Always show the requested URL on the “Logs” tab (even after a redirect is deleted).
  • FIX: “View Logs For” on the logs tab shows all of the URLs found in the logs.

Version 1.7.0 (May 24, 2017)

  • Improvement: Old log entries are deleted automatically based on the maximum log size.
  • Improvement: Log structure improved. Log entries no longer require redirects.
    This means additional functionality can be added in the future,
    such as redirects based on regular expressions and ignoring requests based on user agents.

Version 1.6.7 (May 3, 2017)

  • FIX: Correctly log URLs with only special characters at the end, like /&.
  • FIX: Fix a blank options page when a page exists with a parent page (for Mike and wdyim).

Version 1.6.6 (April 20, 2017)

  • Improvement: Avoid logging redirects from exact slug matches missing only the trailing slash (avoid canonical
    redirects – let WordPress handle them).
  • Improvement: Remove the “force permalinks” option. That option is always on now.

Version 1.6.5

  • Improvement: Add 500 and “all” to the rows per page option to close issue #8 (Move ALL Captured 404 URLs to Trash).
  • FIX: Correct the “Redirects” tab display when the user clicks the link from the settings menu.

Version 1.6.4 (April 6, 2017)

  • Improvement: Add a “rows per page” option for pagination for ozzymuppet.
  • FIX: Allow an error message to be logged when the logger hasn’t been initialized (for totalfood).

Version 1.6.3 (April 1, 2017)

  • FIX: Log URLs with queries correctly and add REMOTE_ADDR, HTTP_USER_AGENT, and REQUEST_URI to the debug log for ozzymuppet.
  • Improvement: Add a way to import redirects (Tools -> Import) from the old “404 Redirected” plugin for Dave and Mark.

Version 1.6.2

  • FIX: Pagination links keep you on the same tab again.
  • FIX: You can empty the trash again.

Version 1.6.1

  • FIX: In some cases editing multiple captured 404s was not possible (when header information was already sent to
    the browser by a different plugin).
  • Improvement: Forward using the fallback method of JavaScript (window.location.replace() if sending the Location:
    header does not work due to premature outptut).

Version 1.6.0

  • Improvement: Allow the default 404 page to be the “home page.”
  • Improvement: Add a debug and error log file for Dave.
  • FIX: No duplicate captured URLs are created when a URL already exists and is not in the trash.

Version 1.5.9

  • FIX: Allow creating and editing redirects to external URLs again.
  • Improvement: Add the “create redirect” bulk operation to captured 404s.
  • Improvement: Order posts alphabetically in the dropdown list.

Version 1.5.8

  • FIX: Store relative URLs correctly (without the “http://” in front).

Version 1.5.7

  • Improvement: Ignore requests for “draft” posts from “Zemanta Aggregator” (from the “WordPress Related Posts” plugin).
  • Improvement: Handle normal ?p=# requests.
  • Improvement: Be a little more relaxed about spelling (e.g. aboutt forwards to about).

Version 1.5.6

  • FIX: Deleting logs and redirects in the “tools” section works again.
  • Improvement: Permalink structure changes for posts are handled better when the slug matches exactly.
  • Improvement: Include screenshots on the plugin page, a banner, and an icon.

Version 1.5.5

Released 2017-03-07

  • FIX: Correct duplicate logging.
  • Improvement: Add debug messages.
  • Improvement: Reorganize redirect code.

Version 1.5.4

  • FIX: Suggestions can be included via custom PHP code added to 404.php

Version 1.5.3

  • Refactor all code to prepare for WordPress.org release.

Version 1.5.2

  • FIX plugin activation. Avoid “Default value for parameters with a class type hint can only be NULL”
  • Add a Settings link to the WordPress plugins page.

Version 1.5.1

  • Prepare for release on WordPress.org.
  • Sanitize, escape, and validate POST calls.

Version 1.5.0

  • Rename to 404 Solution (forked from 404 Redirected at https://github.com/ThemeMix/redirectioner)
  • Update branding links
  • Add an option to redirect all 404s to a specific page.
  • When a slug matches a post exactly then redirect to that post (score +100). This covers cases when permalinks change.