I see lot of people having the same issue, Error 521 on wordpress sites using Cloudflare.
In my case everything works smooth but when I try to update a post, the website get unstable… slow and I get lots of 521 errors.
When I deactivate Cloudflare everything works fine again.
At Dreamhost they say it’s a Cloudflare issue.
My website is: www.sosfactory.com
I have not much knowledge, can anybody help me to isolate the issue?
Thanks a lot.