Getting 502 Status Error Code

One of my URL is giving 502 status code (cloudfare)

https://gpuzzles.com/worksheet/rebus/?testing=1111

However, no issues found in my domain.
Also, it seems we can trust Error Analytics as it’s giving the message as “There were no HTTP 5xx Error detected during this time period.”

One of my URL is giving 502 status code (cloudfare)

https://gpuzzles.com/worksheet/rebus/?testing=1111

However, no issues found in my domain.
Also, it seems we can trust Error Analytics as it’s giving the message as “There were no HTTP 5xx Error detected during this time period.”

I’m not able to replicate that, but that’s an error at the Cloudflare edge node, not your server. If you try https://gpuzzles.com/cdn-cgi/trace, which “colo” does it show?

If the problem persists, open a ticket and let them know which colo you’re going through.

To contact Cloudflare Customer Support, login & go to https://dash.cloudflare.com/?account=support and select get more help. If you receive an automatic response that does not help you, please reply and indicate you need more help.

no revert so far… its been 2 days

Well, A) it seems to work everywhere but on your connection B) @sdayman already provided the right advice.

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Getting 502 error code again on this url
https://gpuzzles.com/worksheet/rebus/?random=l1

This Making me crazy.

In case you dont find 502 code, Please change the value of random= (with completely random value)

fl=269f14
h=gpuzzles.com
ip=182.69.xxx.xxx
ts=1622535984.649
visit_scheme=https
uag=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36
colo=HYD
http=http/3
loc=IN
tls=TLSv1.3
sni=plaintext
warp=off
gateway=off

any help ?

Look familiar to my old server with a WAF rule pattern of ?A=B, but may not your problem. As my case is that server doesn’t have mod_cloudflare installed, and my WAF blocking the request matched it’s patterns, without mod_cloudflare, it will block Cloudflare IP instead of my IP. My current server using another WAF with mod_cloudflare installed, and it’s return 403 instead of Cloudflare bad gateway like the old server.

Not able to understand this. whats the solution ?

Does your server having WAF protection on your origin side, not Cloudflare side? Your server can resolve real visitors IP instead of Cloudflare IP? I was used mod_security and free rules set from Comodo on that old server, sometime i facing the issues look familiar to your case, my reply may not a solution for you, just an example may help you find a solution your self. Try to read your mod_security logs if it blocking your query.

I think this might not be the reason. As its true for only this url

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