Too Many Redirects Error (ERR_TOO_MANY_REDIRECTS): How to Fix It
Find who owns the ERR_TOO_MANY_REDIRECTS error: trace the chain with curl, then check WordPress addresses, .htaccess rules, Nginx, and the Cloudflare SSL mode in order.
Web
Guides on web design, getting a website built, speed, user experience and technical foundations.
300 posts
401 Unauthorized Error: What It Means and How to Fix It
A 401 unauthorized error means missing credentials. Learn the 403 difference, Basic Auth and .htpasswd setup, cPanel, WordPress, API tokens and staging SEO.
500 Internal Server Error: What It Means and How to Fix It
Fix an HTTP 500 error in order: error log, .htaccess, PHP version, memory_limit, file permissions, WordPress plugins, cPanel and VPS steps, plus the effect on Google crawling.
502 Bad Gateway Error: What It Means and How to Fix It
A 502 Bad Gateway error points to a problem between a reverse proxy and its upstream. Learn the causes, PHP-FPM and nginx settings, Cloudflare codes and fixes by role.
503 Service Unavailable Error: What It Means and How to Fix It
Learn what a 503 Service Unavailable error means, how to diagnose overload and maintenance causes, and why a 503 is the right status during downtime, with official sources.
What Is IOPS? Disk Performance, NVMe SSDs and fio Testing
Learn how IOPS, throughput and latency differ, how HDD, SATA SSD and NVMe compare, what it means for databases and WordPress, and how to measure with fio, based on official docs.
What Is RAID? RAID 0, 1, 5, 6 and 10 Explained for Websites
We compare RAID levels with a capacity and safety table, explain why RAID is not a backup, what it means for hosting and VPS, and what happens when a disk fails.
Linux Package Mirror: What It Is and How to Choose One
What is a Linux package mirror and how does it affect apt and dnf updates? We explain sources and repo files, GPG verification, mirror choice and when a private mirror makes sense.
What Is Anycast DNS? Faster, More Resilient DNS Explained
Anycast DNS announces one IP address from many locations and sends each query to the nearest node. We explain how it works, where it falls short and when it makes a real difference.
What Is Traceroute? How to Use and Read Tracert Output
Traceroute (tracert) shows which routers your packets cross on the way to a server. We explain TTL, the commands, each output line and the false alarms that fool beginners.