Alex

Hi, I’m Alex — the person behind ErrorRescue. I’ve been working with websites, servers, and hosting for over 8 years. Most of my experience comes from troubleshooting real problems on WordPress sites, VPS and shared hosting environments, and Cloudflare setups. I’ve dealt with everything from SSL certificate failures and DNS misconfigurations to 504 timeouts, memory exhaustion errors, and Cloudflare 5xx issues. I started ErrorRescue because I got tired of seeing generic, outdated, or incomplete error guides. My goal is to write clear, practical fixes based on what actually works in production — not just theory. Every guide here is tested against common server setups (Apache, NGINX, Cloudflare, and popular WordPress stacks). When I’m not fixing sites, I’m usually reviewing new hosting configurations or updating existing guides so they stay accurate.

Cloudflare Error 1020 Access Denied: How to Fix It

by

Error 1020 means Cloudflare blocked the request with a firewall rule before it reached your server Cloudflare Error 1020 Access Denied means Cloudflare blocked a request based on a firewall rule. The request never reached your origin server. This is not downtime. It is a security rule doing exactly what it was configured to do.

Error 526 Invalid SSL Certificate: How to Fix It

by

Error 526 means the CDN connected to the origin but rejected the SSL certificate as invalid 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

Error 525 SSL Handshake Failed — Causes & Fix Guide

by

Last tested: October 22, 2026 · By Alex 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

Error 524 Timeout Occurred — Causes & Fix Guide

by

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

Error 523 Origin Is Unreachable — Causes & Fix Guide

by

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

Error 520 Unknown Error — Causes & Fix Guide

by

Last tested: October 22, 2026 · By Alex Error 520 Unknown Error means the CDN received an unexpected or empty response from the origin server. The connection succeeds, but the reply is invalid. This error is vague by design. It signals that something broke between your server and the proxy layer. The fix requires systematic

Error 522 Connection Timed Out: Causes, Fixes & Prevention

by

Last tested: October 22, 2026 · By Alex Error 522 Connection Timed Out means a CDN could reach your network but did not receive a response from the origin server in time. The connection starts successfully, then stalls. This is usually caused by overloaded servers, blocked requests, or network routing problems. Fixing it quickly is

Error 521 Web Server Is Down — Fix Guide

by

Last tested: October 22, 2026 · By Alex Error 521 Web Server Is Down means a CDN cannot connect to your origin server. The request reaches the network, but the server refuses the connection. This usually points to firewall rules, server downtime, or hosting issues. Fixing it fast is critical because prolonged outages can affect