Title: Loopback request 503
Last modified: January 30, 2018

---

# Loopback request 503

 *  Resolved [aCstudent](https://wordpress.org/support/users/acstudent/)
 * (@acstudent)
 * [8 years, 4 months ago](https://wordpress.org/support/topic/loopback-request-503/)
 * Thank you for making this very helpful plugin available.
 * I get the following result in both regular and troubleshooting mode:
    Loopback
   request: The loopback request returned an unexpected status code, 503, this may
   affect tools such as WP_Cron, or theme and plugin editors.
 * Any ideas?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Floopback-request-503%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Marius L. J.](https://wordpress.org/support/users/clorith/)
 * (@clorith)
 * [8 years, 4 months ago](https://wordpress.org/support/topic/loopback-request-503/#post-9919556)
 * Hi,
 * From experience, that is often caused by either a web-proxy (such as CloudFlare
   for example), or your hosts server setup (they may have their own blocks in place
   for various requests and so forth).
 * It’s not something we can reliably determine from the plugin, but I had a quick
   look at your site, and I see that you’ve got both CF in place, and your hosts
   has various caching mechanisms running, both of these may be a factor.
 * HTTP 503 means services unavailable, so I can’t say which party is the source,
   as they can both provide that status.
 *  Thread Starter [aCstudent](https://wordpress.org/support/users/acstudent/)
 * (@acstudent)
 * [8 years, 4 months ago](https://wordpress.org/support/topic/loopback-request-503/#post-9920261)
 * Thank you Marius for your fast response, informative help, and excellent plugin.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Loopback request 503’ is closed to new replies.

 * ![](https://ps.w.org/health-check/assets/icon.svg?rev=1828244)
 * [Health Check & Troubleshooting](https://wordpress.org/plugins/health-check/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/health-check/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/health-check/)
 * [Active Topics](https://wordpress.org/support/plugin/health-check/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/health-check/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/health-check/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [aCstudent](https://wordpress.org/support/users/acstudent/)
 * Last activity: [8 years, 4 months ago](https://wordpress.org/support/topic/loopback-request-503/#post-9920261)
 * Status: resolved