SSL Handshake Failed Error Code 525, How To Fix in Cloudflare?

To fix Cloudflare’s Error 525 (SSL Handshake Failed), first verify your origin server’s SSL certificate is valid, not expired, and properly configured. Ensure the certificate is issued by a trusted CA (Certificate Authority) and includes the correct domain. Check your server’s SSL/TLS settings—modern protocols (TLS 1.2/1.3) should be enabled while outdated ones (SSLv3, TLS 1.0/1.1) are disabled. Confirm your firewall or security software isn’t blocking Cloudflare’s IPs (whitelist them if needed). Restart your web server (e.g., Apache/Nginx) and test the connection. If issues persist, temporarily pause Cloudflare’s proxy to isolate the problem. Properly configuring these elements should resolve the 525 error.