CDNShark Documentation

Guides, tutorials, and references for every part of CDNShark — edge delivery, pull zones, DNS, cache controls, and more.

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522 — Connection Timed Out

Error 522 means CDNShark's edge nodes could not connect to your origin server within the timeout window. Check that your origin firewall allows inbound connections from CDNShark IP ranges (listed in Account → IP Ranges), your origin server is running, and there are no port blocks.