{"id":145845,"date":"2023-03-28T04:02:41","date_gmt":"2023-03-28T04:02:41","guid":{"rendered":"https:\/\/developer.wordpress.org\/advanced-administration\/wordpress\/loopback\/"},"modified":"2025-07-07T21:30:58","modified_gmt":"2025-07-07T21:30:58","slug":"loopback","status":"publish","type":"adv-admin-handbook","link":"https:\/\/developer.wordpress.org\/advanced-administration\/wordpress\/loopback\/","title":{"rendered":"Loopbacks"},"content":{"rendered":"<p>A loopback is when your own server or website tries to connect to it self.<\/p>\n<p>WordPress uses this functionality to trigger scheduled posts, and other scheduled events that plugins or themes may introduce.<\/p>\n<p>They are also used when making changes in the Plugin- or Theme-editor, by connecting back to the website and making sure that the changes made does not break your website.<\/p>\n<h2 id=\"troubleshooting-loopback-issues\">Troubleshooting loopback issues<\/h2>\n<p>If you are having problems with scheduled posts or other timed events not running, or seeing Site Health warnings about loopbacks failing, you may want to troubleshoot these.<\/p>\n<p>The most common cause of loopback failures is a plugin or theme conflict, you should start by following the normal troubleshooting steps:<\/p>\n<h2 id=\"common-troubleshooting-steps\">Common troubleshooting steps<\/h2>\n<ul>\n<li>Deactivating <strong>all plugins<\/strong> (yes, all) to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s). If you can&#8217;t get into your admin dashboard, try resetting the plugins folder by <a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/upgrade\/ftp\/\">SFTP\/FTP<\/a> or phpMyAdmin (read <a href=\"https:\/\/wordpress.org\/documentation\/article\/faq-troubleshooting\/\">How to deactivate all plugins when you can\u2019t log in to wp-admin<\/a> if you need help). Sometimes, an apparently inactive plugin can still cause problems. Also remember to deactivate any plugins in the <code>mu-plugins<\/code> folder. The easiest way is to rename that folder to <code>mu-plugins-old<\/code>.<\/li>\n<li>Switching to a Twenty-Something theme to rule out any theme-specific problems. If you can&#8217;t log in to change themes, you can remove the theme folders via <a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/upgrade\/ftp\/\">SFTP\/FTP<\/a> so the only one is <code>twentytwentythree<\/code>. That will force your site to use it.<\/li>\n<li>If you can install plugins, install the plugin <a href=\"https:\/\/wordpress.org\/plugins\/health-check\/\">Health Check<\/a>. On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while you&#8217;re still logged in, <strong>without affecting normal visitors to your site<\/strong>.<\/li>\n<\/ul>\n","protected":false},"author":0,"featured_media":0,"parent":145835,"menu_order":11,"template":"","meta":{"footnotes":""},"class_list":["post-145845","adv-admin-handbook","type-adv-admin-handbook","status-publish","hentry","type-handbook"],"revision_note":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/adv-admin-handbook\/145845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/adv-admin-handbook"}],"about":[{"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/types\/adv-admin-handbook"}],"version-history":[{"count":3,"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/adv-admin-handbook\/145845\/revisions"}],"predecessor-version":[{"id":159086,"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/adv-admin-handbook\/145845\/revisions\/159086"}],"up":[{"embeddable":true,"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/adv-admin-handbook\/145835"}],"wp:attachment":[{"href":"https:\/\/developer.wordpress.org\/wp-json\/wp\/v2\/media?parent=145845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}