Site Spy Monitor

What it does

Site Spy Monitor helps users track website changes in real-time. Easily add sites to a watchlist, detect updates, and compare versions. Perfect for monitoring news, prices, and documents

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  I built a tool that watches webpages and exposes changes as RSSMar 2026 · sitespy.app · ▲320

  I built Site Spy after missing a visa appointment slot because a government page changed and I didn’t notice for two weeks. It watches webpages for changes and shows the result like a diff. The part I think HN might find interesting is that it can monitor a specific element on a page, not just the whole page, and it can expose changes as RSS feeds. So instead of tracking an entire noisy page, you can watch just a price, a stock status, a headline, or a specific content block. When it changes, you can inspect the diff, browse the snapshot history, or follow the updates in an RSS reader. It’s…

• ME
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