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Re:Show HN: I built a tool that watches webpages and exposes... by raphman on Wednesday March 11, 2026 @03:04PM (#47339768)
There's also https://github.com/thp/urlwatch/ - (not aware of any SaaS offer - self-hosted it is).
Re:Show HN: I built a tool that watches webpages and exposes... by vkuprin on Wednesday March 11, 2026 @03:10PM (#47339848)
Yep, urlwatch is a good one too. This category clearly has a strong self-hosted tradition. With Site Spy, what I’m trying to make much easier is the browser-first flow: pick the exact part of a page visually, then follow changes through diffs, history, RSS, and alerts with very little setup