Recently for last 4 weeks Cloudflare error 520 is keep coming intermittently on most of our domains. We have checked all error logs of server and there is no issue we can see there, if we pause the Cloudflare then there is no issue but with Cloudflare it works for few hours and then suddenly shows Cloudflare error 520, and upon refreshing the page error goes away itself… ‘Always On’ is already disabled as suggested.
Not sure but seems like it is related to DC upgrade or something as mentioned here Cloudflare Status - Upcoming Datacenter Upgrades since 520 error has started coming after this upgrade. Otherwise we never faced this issue with our websites.
It seems like our zone is also facing the same issue which you guys fixed for others in this post Cloudflare Status - Elevated 520 errors on Free Zones
Can you please check and correct our zones too
Please find some Ray IDs:
Ray ID: 68e860efbced4a95
Ray ID: 68e8b93b9f1c189b
Ray ID: 68e911464bd34bec
Ray ID: 68f15d0f4c44dcee
Ray ID: 68f161426d54dcee
Ray ID: 68f29585a9724a4d
Ray ID: 69002f34fe1649a8
FYI: I also opened a ticket #2250948 for this but no one replied in last 5 days.