Error 520 on my website

[fritex]

May I suggest looking here:

Error 520 problem for two minutes?

Regarding Cloudflare 520 error, may I suggest you to try looking into below articles to troubleshoot the issue: https://support.cloudflare.com/hc/en-us/articles/115003011431-Troubleshooting-Cloudflare-5XX-errors#520error May I ask what is your domain name and who is your hosting provider, if so? Maybe some recent and planned maintenance period at the DC from your hosting provider? Before moving to Cloudflare, was your Website working over HTTPS connection? If so, did you had an valid SSL…