Update Scanner review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Update Scanner is an open-source browser extension for monitoring web pages that do not provide Atom or RSS feeds. It is designed for people who need to follow changes on selected pages, such as updated text or newly posted information, without relying on a feed. Users can add pages, choose how often each page is checked, and receive notifications when updates are detected. The extension also highlights changed text and provides a sidebar showing monitored pages with updates.

Its strongest fit is focused content monitoring. Scan frequency can be configured for each page, which gives users control over how often different pages are checked. The option to ignore minor changes helps reduce attention on small edits, while automatic highlighting makes the changed content easier to review. The updated-pages sidebar adds a central view of which monitored pages need attention. These features make Update Scanner suitable for lightweight tracking across a selected set of pages, especially when those pages lack Atom or RSS feeds.

The product is deliberately narrower than a full website monitoring service. Its published capabilities cover page health checks and content-change detection, but not SSL monitoring, latency monitoring, status pages, maintenance windows, or API access. That makes it a practical choice for readers, researchers, and individuals who want browser-based change alerts, while teams needing operational monitoring should choose a product with broader technical checks and service-management features. Choose Update Scanner when page content is the main concern; look elsewhere when uptime, infrastructure signals, integrations, or programmatic access are central requirements.

Update Scanner pros and cons

• Where it wins
  • Configurable scan frequency for each monitored page
  • Highlights changed text and can ignore minor updates
  • Notifications and an updated-pages sidebar keep changes visible
• Where it doesn't
  • Focused on content changes rather than uptime or technical health
  • No SSL, latency, status-page, maintenance-window, or API features
  • Distributed as a browser extension rather than a broader monitoring platform

Update Scanner fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update