Run 2 scheduled workers within 5 seconds of each other

fritex · October 5, 2021, 11:29pm

May I ask what have you tried so far?

Does your Website work over HTTPS?
What about the SSL certificate, do you actually have a valid one for your domain?

Furthermore, may I ask which SSL option have you got selected under the SSL/TLS tab of Cloudflare dashboard for your domain? (Flexible, Full, Full Strict …)

Is it surely there is no Firewall Events or some other possible Security which could potentially block your requests?

Useful articles about 525 error you are encoutering so far for now:

https://support.cloudflare.com/hc/en-us/articles/115003011431-Troubleshooting-Cloudflare-5XX-errors#525error

Particularly, correctly setup the SSL for your domain at first sight and possibly going step-by-step to troubleshoot the SSL handshake issue?

Here is a way to re-check if you correctly setup the SSL for your domain with Cloudflare:

In case you do not have an SSL certificate, you can use Cloudflare SSL, if so, kindly make sure you follow the instructions as follows on the below article to setup an SSL certificate using Cloudflare CA Origin Certificate:

Origin CA certificates · Cloudflare SSL/TLS docs

Also, kindly have a look here for more information regarding correct SSL settings:

Topic		Replies	Views
Error: Origin SSL Handshake Error (525) Workers	14	5015	February 7, 2022
SSL Handshake issues with fetch Workers	21	5842	May 21, 2021
Error code: 525 (to non-cloudflare sites) on outbound fetch() requests Workers	1	24	April 15, 2025
I was never able to have been able to get cloudflare to work? I get a 525 Error Security	3	1218	March 27, 2023
Error 525 SSL handshake failed multiple sites Security	5	2214	August 11, 2022

Run 2 scheduled workers within 5 seconds of each other

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