Show HN: IsSiteDown – Chrome extension to check current site availability

Category: devtools

Tags: chrome-extension, network-diagnostics, ip-lookup, webextensions

Score: 5.8/10 (Innovation: 4, Technical: 6, Documentation: 8, Utility: 5)

IsSiteDown (Site IP Badge) is a Chrome extension that displays the server IP address of the current page as a small badge, including CDN/provider detection, protocol info, DNS fallback, and a popup with reverse DNS. It is a solid from-scratch replacement for an abandoned extension, with thoughtful details like Shadow DOM styling, service-worker suspension handling, and Playwright end-to-end tests.

Target audience: web developers, devops, and network engineers who need quick visibility into site infrastructure

Repository: https://chromewebstore.google.com/detail/issitedown/ifilnamlilffdbhbfmkkkajlgckimjlo · JavaScript · MIT

View on Hacker News