3 months ago
My server has gone offline today. I'm getting a Cloudflare error message saying "Invalid SSL Certificate." It was working yesterday, but my website is down this morning. What could be causing this? I need help.
Thanks
4 Replies
Status changed to Awaiting Railway Response Railway • 3 months ago
3 months ago
I have solved it setting Cloudflare SSL/TLS mode to "Full" (not "Full Strict").
It is a good solucion or is better set it to Full Strict ?
Thanks
3 months ago
It’s “okay” to stay on Full only but the problem is if someone manages to intercept traffic between Cloudflare and your server (rare but possible in certain environments), “Full” would not detect certificate tampering.
Strict mode protects against that.
3 months ago
According to Railway docs, when using Cloudflare you should set SSL mode to Full, not Full (Strict). Strict can cause 526 errors because Cloudflare may fail to validate Railway’s auto-issued certificates during renewal or DNS propagation. So you can leave it as it is, as recommended by the docs.
diogoribeirodev
According to [Railway docs](https://docs.railway.com/networking/troubleshooting/ssl#cloudflare-specific-issues), when using Cloudflare you should set SSL mode to **Full**, not **Full (Strict)**. Strict can cause 526 errors because Cloudflare may fail to validate Railway’s auto-issued certificates during renewal or DNS propagation. So you can leave it as it is, as recommended by the docs.
3 months ago
I'll leave it like that then, thank you very much.
Status changed to Solved alberto • 3 months ago