> 530 Site is frozen That's how Pantheon uses the code, not how Cloudflare uses it. The wikipedia article you linked has a whole section dedicated to Cloudflar

> 530 Site is frozen That's how Pantheon uses the code, not how Cloudflare uses it. The wikipedia article you linked has a whole section dedicated to Cloudflare's use of unofficial error codes. Specifically, it doesn't mean much in particular for Cloudflare other than "check the other error code we returned elsewhere in the response to see what the actual issue is"