OnWebChange is described as 'Track web page changes in any web page daily for free users, every 30 minutes for paid users - no RSS or Atom required. Receive notifications via email, Instant Message, and SMS' and is a website monitoring tool in the os & utilities category. There are more than 50 alternatives to OnWebChange, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, Windows and Android apps. The best OnWebChange alternative is Uptime Kuma, which is both free and Open Source. Other great sites and apps similar to OnWebChange are changedetection.io, Tianji, Distill Web Monitor and UptimeRobot.
Web Alert enables you to monitor any website for changes (even when a login, a form post or password prompt is necessary to access the site). You can get notified when a price changes, a new article is published, you receive exam results or an answer in a forum, a registration...
Update Scanner is a Firefox extension to monitor web pages for updates. Useful for websites that dont provide Atom or RSS feeds.
Create automatic monitors for detecting and scanning changes on web pages, evaluate content based on conditions you define and trigger actions such as notifications, sounds, emails etc.
SiteDelta is an Add-on for old versions of Mozilla Firefox (before the introduction of WebExtensions).
Monitor webpages and receive freshly scraped data everytime the page changes to a webhook of your choice.
DomainPulse.io is an advanced service designed to help users easily monitor and manage all their domain registrations in one place.
Versionista is an online service that alerts you when a Web site changes. It shows you what's been added & removed to any Web page. It records a full page screenshot, and lets you use powerful inclusion/exclusion filters.
Netweak is a delightful, minimalist monitoring platform that gives you insights on performance and availability for your linux servers & websites.
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