Also, I was unfamiliar with the 530 status code; turns out it's unofficial and somewhat arbitrary:
> 530 Site is frozen
Curious what this means in Cloudflare land.
> 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"
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Increased HTTP 530 Errors
Identified
The issue has been identified and a fix is being implemented.
Posted 1 hour ago. Oct 25, 2022 - 16:29 UTC
Investigating
Cloudflare is investigating an increased level of HTTP 530 errors.
We are working to analyse and mitigate this problem. More updates to follow shortly.
Posted 2 hours ago. Oct 25, 2022 - 15:53 UTC
This incident affects: Cloudflare Sites and Services (CDN/Cache).