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I've a problem regarding Stripe Webhooks (and some other tools). Somehow we receive HTTP 525 errors since a few days. So there seems to be a SSL handshake error. The strange thing is, that only Stripe and a few crawl bots are affected. The website works as expected when I visit it with various browsers.

Here is some analytics data from Cloudflare: enter image description here enter image description here

All of them seem to have an empty X-Requested-With header.

Any idea what I can do?

We use Cloudflare and Cloudflare Loadbalancers. All traffic is proxied by Cloudflare. We have 2 origin servers. I've already created and installed new certificates, added/changed ciphers, added/updated different TLS versions, changed SSL mode within Cloudflare from Off to Full (strict) and all options between.

Brotzka
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  • This is [off-topic](https://stackoverflow.com/help/on-topic) on Stack Overflow. It's not a programming question. – Gert Arnold Oct 12 '22 at 07:25

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