SiteTrackr

What it does

SiteTrackr watches any specific element on any webpage and alerts you the moment it changes — prices, job listings, news sections, stock status, competitor pages. Just click the element you want to monitor. No code, no setup, works on any site. Use it to catch price drops, new job postings, breaking news, or any competitor update automatically. Free plan: up to 10 monitors.

• IB
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  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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