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Originally shared on Hacker News

Down for Just Me or Everyone

A modern is-it-down website checker that probes website statuses from two geographical locations (Singapore and Boston) to avoid false positives caused by datacenter IPs being blocked, letting it distinguish 'unreachable from Asia' from 'down for everyone'. It covers 634 curated sites, uses no cookies, analytics, or ads (pageviews are counted from the proxy access log), and offers a free API and an MCP server.

Last shared
01 / The problem

What it addresses

Existing checkers are prone to false positives because they show sites like irs.gov, ssa.gov, and ups.com as down when they are merely blocking datacenter IPs from certain regions; a second probe in Boston fixes this.

02 / Source history

Shared over time

Each entry reflects what was shared on that date. Details may have changed since then.

  1. Down for Just Me or Everyone

    A modern is-it-down website checker that probes website statuses from two geographical locations (Singapore and Boston) to avoid false positives caused by datacenter IPs being blocked, letting it distinguish 'unreachable from Asia' from 'down for everyone'. It covers 634 curated sites, uses no cookies, analytics, or ads (pageviews are counted from the proxy access log), and offers a free API and an MCP server.

    Problem: Existing checkers are prone to false positives because they show sites like irs.gov, ssa.gov, and ups.com as down when they are merely blocking datacenter IPs from certain regions; a second probe in Boston fixes this.

    Posted by @sleeby · Original comment ↗

    “I am working on a modern is-it-down website checker that checks website statuses from two geographical locations. This was the interesting part for me, to get them working together to avoid false positives.”