Support AI
I'm sorry to hear that you're experiencing issues with your website. Based on the error message you provided, "Error code 521: Web server is down," I found some relevant information in the Cloudflare documentation.
According to the documentation (https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/error-521/), Error 521 occurs when the origin web server refuses connections from Cloudflare. The two most common causes of 521 errors are:
- Blocked Cloudflare requests.
- Security solutions at your origin may block legitimate connections from certain Cloudflare IP addresses.
To resolve this issue, you can try the following steps:
- Review your origin web server error logs to identify web server application crashes or outages.
- Confirm that Cloudflare IP addresses are not blocked or rate limited.
- Allow all Cloudflare IP ranges in your origin web server's firewall or other security software.
- If you have your SSL/TLS mode set to Full or Full (Strict), confirm that your origin supports HTTPS and/or you have installed a Cloudflare Origin Certificate or a certificate matching the requirements for these modes.
You can find more information on troubleshooting Error 521 on the Cloudflare documentation page (https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/error-521/).
Additionally, since you mentioned that you can access your website using a VPN, it's possible that the issue is related to your local network or ISP. You may want to try accessing your website from a different network or location to see if the issue persists.
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