Error Code Portal
CloudflareCloudflare HTTP errorsError code

522

Error 522: connection timed out

Alternative forms: Error 522

What does this code mean?

Code 522 · An issue reported by Cloudflare HTTP errors.

Official explanation · Original text

Error 522 occurs when Cloudflare times out contacting the origin web server. Two different timeouts cause HTTP error 522 depending on when they occur between Cloudflare and the origin web server:

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Error 522: connection timed out ↗

Creator: Cloudflare, Inc. and contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source details · Original licenses and notices