wnelson03
CDCloudflare Developers
•Created by wnelson03 on 3/31/2025 in #workers-help
Network error with outbound fetch() requests (some domains working, others not)
When using fetch() requests on Cloudflare, we now experience "error code: 525" for the past 4 days on certain worker custom domains, not the
workers.dev domain.
https://keyauth.win/psdb - error code: 525
https://keyauth-worker.agentreachout.workers.dev/psdb - success (no SSL error)
https://prod.keyauth.com/psdb - success (no SSL error)
The URLs above request this API https://aws.connect.psdb.cloud/psdb.v1alpha1.Database/Execute which doesn't use Cloudflare (workers changed the "server" header, Planetscale confirmed they don't use Cloudflare)
It happens with other non-Cloudflare sites too. Example: https://text.myip.wtf/
I deployed a plain Javascript, no framework example requesting text.myip.wtf and it's the same problem
https://vanilla.keyauth.win/ - error code: 525
https://ssl-testing-vanilla.agentreachout.workers.dev/ - success
Sounds similar to these issues. I've tried SSL mode Full it doesn't resolve anything. I do NOT own these external websites so I'm not sure how I would control the fact they work from some of my worker domains and not others.
https://github.com/cloudflare/workerd/issues/776
https://community.cloudflare.com/t/http-525-on-outbound-fetch/429778
Appreciate any help I may get ❤️ 3-4 million requests to my site are being dropped right now and Cloudflare Pro hasn't gotten me a response in 4 days from Cloudflare's team.21 replies