Randomly started experiencing a 520 error today out of nowhere. It’s very random and happens when visiting any part of the domain. There is nothing in logs at all. Sometimes the error will happen, sometimes it doesn’t. If it does, and you refresh twice - it quite literally fixes and you can use the site again as normal until you refresh again.
What steps have you taken to resolve the issue?
Everything Cloudflare recommends on their support docs and I’ve also viewed this community forum and tried things others have recommended. Nothing has worked.
If you are still using Google for hosting, check that they are not trying to validate your domain for renewal of the origin SSL certificate. Set the Cloudflare DNS record to “DNS only” instead of “Proxied”, or pause Cloudflare, so you can see what the origin is actually returning for your domain and, if it is an SSL certificate issue, if that allows it to renew.
Once the origin is working with SSL, you can re-enable Cloudflare.
I have removed the IPv6 records since we are not using IPv6 and are only using an IPv4. I assume it takes a few hours as it needs to propagate and cache the changes, could you let me know if it has fixed? I appreciate your help
Your site is returning 520 so you have re-enabled the proxy. You need to see what your web server is returning to fix the issue so switch back to “DNS only” until your site is working properly.
The thing is the setup and everything was fine, just out of nowhere started getting this 520 error. Nothing has changed, so how has what you’ve mentioned caused the issue when it never started happening at the beginning of this setup?
Could you walk me through what I need to exactly do? Anything related to DNS, I cannot stand.
After some further messing around, https://liquidrp.info now comes back without SSL and loads fine. As http://liquidrp.info works fine now as well - no longer getting a 520 but I need to now acquire SSL for the domain without using Cloudflare as using Cloudflare gives us the 520
