How to Diagnose High Admin-Ajax Usage on Your WordPress Site

A very common scenario when dealing with WordPress is diagnosing high admin-ajax.php usage. If you have been working with WordPress for a while, you have most likely encountered this when running speed tests or checking your server access logs. This is generally caused by 3rd party plugins or from frequent un-cachable admin dashboard requests, due to the Heartbeat API, such as autosaving drafts. It is important though that you diagnose high admin-ajax.php spikes when you see them, as they have been known to bring a site to a crawl. Check out the following recommendations below on some ways to tackle the admin-ajax.php issue in WordPress. What is the admin-ajax.php File?
The admin-ajax.php file itself is not a bad thing when used correctly. It is part of core, and was added by the WordPress development team in version 3.6. The purpose of admin-ajax.php is to create a connection between the browser and the server using AJAX. This allows for extended functionality such as improving auto-saving, revision tracking, login timeouts, session management, and notifications about a post being locked when there are multiple editors. Which are all great features, especially for those working with



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