Each time I enable clouldflare my website seems to go down and becomes inaccessible. Customers get page cannot be found. As soon as I paused Cloudflare the websites is backup and working. Are there are any logs I can check to determine what is causing the website to become inaccessible?
What error do you see? Can you share a screenshot of it?
May I ask you to post and share the URL example to the particular resource in a bracketed dot [.] notation with us so we could double-check, troubleshoot and provide some feedback information reagarding the domain?
Before moving to Cloudflare, was your Website working over HTTPS connection?
May I ask have you tried using a different Web browser, or tried clearing your Web browser cache?
How about using a Private window (Incognito mode) or a VPN connection if possible?
Is it the same behaviour on your mobile phone (4G LTE, mobile data, cellular)?
The website is pharmacyfoundations.[co].[uk]. I did not check the HTTP error code. I wanted to resolve the issue ASAP. In order to resolve it I simple paused Cloudflare on the website. I use platform360 as a part of the monitoring soloution which states:
trying pharmacyfoundations  Timeout was reached (Operation timed out after 30001 milliseconds with 0 bytes received)
Although, if you’re experiencing some Cloudflare error, I’d suggest you to add Cloudflare IPs to your origin host/server firewall and/or share with your hosting provider as follows on the articles from below:
Nevertheless, since your website works okay via HTTPS as far as I can see, may I ask what SSL option have you got selected under the SSL/TLS tab at Cloudflare dashboard for your domain ( Flexible, Full, Full Strict … )?
Here is a way to re-check if you correctly setup the SSL for your domain with Cloudflare:
Last but not least, kindly have a look here for more information regarding correct SSL settings at the SSL/TLS tab on Cloudflare dashboard:
I checked the website and it was down at the time that Cloudflare was enabled. I have now added the IP address of the web server in clouldflare and I have raised a ticket with the hosting company to white list the clouldflare IP addresses on the firewall.
Are there any other checks that I could do which would help to diagnose/fix this issue?