I have a SSL but I can not open my site with https
I apply a SSL for my website on Cloudflare,but when I open the website with https link ,it show 521 error,and the cloudflare official document say "when you see 521 error ,you should contact your hosting provider,it may blocked Cloudflare requests"
so what should I do now? I want my site open with https
1 Reply
rdaniels
Linode Staff
@mudihu, you'll want to check a few things on your Linode server to get to the bottom of the issue. Linode Support doesn't access customers' server or make configuration changes. But you can log into your Linode directly and take a look at some of the following things.
- Make sure your Linode is responsive
- Review web server error logs for any hints as to what may be causing the issue
- Check your Linode's firewall rules to make sure port 443 is open and that the Cloudflare IP address is not being blocked for some reason
The following Linode Community Questions post also goes over these troubleshooting steps.
Some additional troubleshooting tips are outlined in the following Cloudflare community post.