Title: redirection_404
Last modified: August 22, 2016

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# redirection_404

 *  [margje](https://wordpress.org/support/users/margje/)
 * (@margje)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/)
 * Hi there,
 * I;ve got a problem with the MySQL table named: “wordpress_redirection_404”
 * It’s over 160mb and keeps growing.
    I cant optimize this table.
 * What’s in it?
    How to shrink it?
 * Thanks in advance!
 * [https://wordpress.org/plugins/redirection/](https://wordpress.org/plugins/redirection/)

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [ZainB](https://wordpress.org/support/users/zainb/)
 * (@zainb)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/#post-5190130)
 * Hi margje,
 * The wordpress_redirection_404* table is a log of all the 404 errors that happen
   on your site, which the Redirection plugin has detected.
 * If you look at the “Tools/Redirection/404″(top link) page, you’ll see a list 
   of problematic URLs and missing images etc. This list is useful for identifying
   pages/images that don’t go anywhere and are broken links (i.e. 404 Not Found).
   In terms of SEO, you should look to map old, out of date URLs, to point to new
   versions of posts/pages (if there is one).
 * To reduce the size of the table, you can use the top checkbox on the left of 
   the “Tools/Redirection/404” page and then use the “Bulk Actions” (top left) to
   delete all of the selected 404s. You may have several pages to go through… if
   you scroll down, there is a “Delete All” button, at the botom of this page, under“
   Log Management”. 😉
 * You may also want to change the dropdown to a shorter duration.
    Go to the “Tools/
   Redirection/Options” page and select the 404 duration to be “No logs” or “1 day”.
 * Hope that helps.
 * *Note: the prefix of your table may be different.
 *  Thread Starter [margje](https://wordpress.org/support/users/margje/)
 * (@margje)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/#post-5190209)
 * Thank you for the clear anwser ZainB!
 * There are 373.763 lines in the log. Most of them contain this info:
 * source /wp-admin​/admin-ajax.php
    referrer [http://www.mydomain.com](http://www.mydomain.com)
 * Which redirect creates this 404 ?
 * Thanks again!
 *  [ZainB](https://wordpress.org/support/users/zainb/)
 * (@zainb)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/#post-5190213)
 * Hi Marge,
 * Have you checked that you’re not missing this file? Try FTPing into the /wp-admin/
   folder and see if the “admin-ajax.php” file exists.
 * If it doesn’t, then you may want to check your installation.
 * Cheers,
 * Zain
 *  Thread Starter [margje](https://wordpress.org/support/users/margje/)
 * (@margje)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/#post-5190268)
 * Hi ZainB,
 * Thanks for your reply. I’ve checked it and the file is not missing. It’s called
   every minute for 3 times in the 404 log.
 * Do you have any clue in which direction i can find the solution for this?
 * Thnaks again!
 *  [ZainB](https://wordpress.org/support/users/zainb/)
 * (@zainb)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/#post-5190306)
 * Hi margje,
 * Sorry for the late reply. I’m not sure why there’s an issue. Off the top of my
   head, I’d be curious as to why the admin-ajax file is being called 3 times every
   minute. That’s a lot of calls to that page… The Redirection 404 script will log
   that file (which is why it’s probably appearing in your list). At a guess, I 
   think another plugin could be triggering it… the problem is, identifying which
   one. The only way to find out is to disable all, then test each one to find the
   culprit.
 * Anyway, I just found out that John has recently updated the plugin (to 2.3.7).
   It’s not in the WP Repository, so you’ll need to download it from his site. I’ve
   posted the link in this thread:
 * [http://wordpress.org/support/topic/redirection-v237-available-non-wp-repository-site-address?replies=1](http://wordpress.org/support/topic/redirection-v237-available-non-wp-repository-site-address?replies=1)
 * It seems 2.3.6 had a few issues.
 * Good luck with your logs.
 * Zain

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘redirection_404’ is closed to new replies.

 * ![](https://ps.w.org/redirection/assets/icon-256x256.jpg?rev=983639)
 * [Redirection](https://wordpress.org/plugins/redirection/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/redirection/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/redirection/)
 * [Active Topics](https://wordpress.org/support/plugin/redirection/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/redirection/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/redirection/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [ZainB](https://wordpress.org/support/users/zainb/)
 * Last activity: [11 years, 9 months ago](https://wordpress.org/support/topic/redirection_404/#post-5190306)
 * Status: not resolved