SSL Certificate Not Trusted means the browser cannot verify the identity of a website. The secure HTTPS connection is blocked because the certificate cannot be validated. This usually happens when the certificate chain is incomplete, the certificate is self-signed, expired, or installed incorrectly. Quick Fix Check if the SSL certificate is expired. Confirm it was … Read more
NET::ERR_CERT_AUTHORITY_INVALID means the browser does not trust the website’s SSL certificate. The secure connection is blocked. This happens when the certificate cannot be verified against a trusted Certificate Authority (CA). Quick Fix Check if the SSL certificate is expired. Make sure it’s issued by a trusted CA (not self-signed). Install the full certificate chain (server … Read more
Mixed Content Error occurs when an HTTPS page loads resources over HTTP. The page is secure, but some elements are not. Modern browsers block insecure resources. This breaks functionality and weakens trust. Quick Fix Open DevTools → Console → identify blocked HTTP URLs. Replace all http:// links with https://. Update WordPress Site URL to HTTPS. … Read more
SSL Handshake Failed (Browser Version) means your browser and the server could not agree on encryption settings. The secure HTTPS connection stopped before it started. This usually happens because of outdated TLS support, invalid certificates, or strict security settings. Quick Fix Update your browser to the latest version. Clear SSL state and browser cache. Check … Read more
ERR_SSL_PROTOCOL_ERROR means the browser failed to establish a secure HTTPS connection. The SSL/TLS negotiation broke before encrypted communication could begin. This is a certificate or protocol configuration problem. It can occur on the server, CDN, or client side. Quick Fix Ensure a valid SSL certificate is installed and not expired. Confirm the certificate matches the … Read more
Cloudflare Error 1020 Access Denied means Cloudflare blocked a request based on a firewall rule. The request never reached your server. This is not downtime. It is a security rule doing exactly what it was configured to do. Quick Fix Open Cloudflare → Security → Events. Find the blocked request using the Ray ID. Identify … Read more
Error 526 Invalid SSL Certificate means the CDN connected to your origin server but rejected the SSL certificate as invalid. The secure connection fails during certificate validation. This error appears only when strict SSL validation is enabled. The problem is always on the origin server. Quick Fix Install a valid SSL certificate on the origin … Read more
Error 525 SSL Handshake Failed means the CDN could not establish a secure HTTPS connection with your origin server. The encryption handshake fails before any content is delivered. This happens between the CDN and your server — not in the user’s browser. The root cause is almost always SSL configuration on the origin. Quick Fix … Read more
Error 524 Timeout Occurred means the CDN successfully connected to your origin server, but the server did not finish processing the request in time. The connection works. The server responds. It is simply too slow. Quick Fix Check CPU and memory usage on the origin server. Restart web server and PHP services. Identify long-running database … Read more
Error 523 Origin Is Unreachable means the CDN cannot reach your origin server at all. The network connection fails before any response is received. This is a connectivity issue. It usually points to DNS errors, incorrect IP configuration, firewall blocks, or server downtime. Quick Fix Verify your server is online and reachable via its IP … Read more