#Troubleshooting

Overview of HTTP 5xx error codes 500, 502, 503 and 504 with cause and meaning

Guides

HTTP Error Codes Explained: 500, 502, 503, 504 and What They Mean for Your Clients

An error reference for the key HTTP 5xx codes: cause, fix, and how monitoring reports the error before your client calls.

Florian Zaskoku17 Jul 202611 min read

Server running but the site won't load, the DNS resolution between user and server is broken

Guides

"Site Unreachable" While the Server Runs: When DNS Is the Problem

Why a site looks "down" while the server runs fine, DNS hijacking, expired delegation, wrong records, and how to catch it early.

Florian Zaskoku16 Jul 202610 min read