WatchPage
Website Changes
What it does
Monitor webpages, visual changes and HTML diffs. Get AI summaries, evidence, reports and alerts by email, Slack, RSS, API and webhooks.
Does a similar job
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- IBI 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…
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