Not every broken connection means the website has perished. Diagnosing the issue begins with reading the specific HTTP response code displayed on your screen.
If your browser shows an ERR_NAME_NOT_RESOLVED or a generic DNS resolution error, the problem sits squarely between your local internet service provider and the site’s registrar. The domain still exists, but your ISP has stopped translating that web address into the underlying server IP. This frequently occurs when regional carriers implement quiet firewall blacklists against high-bandwidth foreign sites.
Conversely, encountering a Cloudflare Error 521 or Error 522 indicates a server connection timeout. In this scenario, Cloudflare's global content delivery network can still find the website’s domain registry, but the origin server housing the actual text files refuses to respond. The site operator is either running database maintenance, rebooting memory-strained instances, or facing heavy traffic congestion that chokes off incoming socket requests.
