Summary

If your website shows an error related to Cloudflares cache and your origin web server, it indicates a mismatch between how cache data is generated and what the origin server expects. To resolve this specific issue, you should first pull the corresponding error log from your actual web server where the crash occurs. After gathering this log, submit it directly to our support team to receive a detailed diagnosis. This direct submission bypasses intermediate systems that might block the logs and allows us to trace the exact failure point within the origin server environment. Our support team will then review the logs and determine the root cause to fix the cache configuration correctly for your origin server.

Title

tanis-turkmen.nl | 520: Web server is returning an unknown error

Description

tanis-turkmen.nl | 520: Web server is returning an unknown error

Keywords

error, server, unknown, working, there, issue, origin, page, website, support, code, visit, more, information, browser, madrid, host

NS Lookup

A 172.67.211.112, A 104.21.77.199

Dates

Created 2026-04-14

Updated 2026-04-15

Summarized 2026-04-16