Hi community cloudflare , i am facing big problem since two weeks .
I have upgrade my hosting plan and When i activate cloudflare on my websites (https://info-ideal.com), i got error 521 and when i stop cloudflare website work fine .
I have contacted namecheap support and after 2 hours of assistance they told me to contact you and provide link to this thread to help your support to solve my situation : 521 Even though web server is fine Second , they and i , we are pretty sure that these common causes are properlly checked :
changing ip adressess in dns section : done
Ensure your origin web server is responsive
Review origin web server error logs to identify web server application crashes or outages. Confirm Cloudflare IP addresses are not blocked or rate limited Whitelist all Cloudflare IP ranges in your origin web server’s firewall or other security software
Please help me to fix my issue as i told you before i have more then 2 weeks facing this issue
All helps are appreciated.
Thank you for your coorporation.
@hadjkacemohamed Railgun is under Speed -> Optimization then down to railgun. Though I doubt it would cause 521 errors.
Are you able to contact the website directly by IP? And what do the logs of your website show? Are there connections being made then failing or is it not connecting at all?
@Cyb3r-Jak3 thank you for your reply :
1- i have disabled railgun and it seems to be fine there is no error until now but as you can see in this screenshot connection isn’t secured
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