SiteDelta is described as 'Add-on for old versions of Mozilla Firefox (before the introduction of WebExtensions). SiteDelta can scan for changes to a website since your last visit' and is an app in the OS & Utilities category. There are more than 25 alternatives to SiteDelta for a variety of platforms, including Online / Web-based, Windows, Linux, Android and SaaS. The best alternative is Huginn, which is both free and Open Source. Other great apps like SiteDelta are UptimeRobot (Freemium), Distill Web Monitor (Freemium), Update Scanner (Free, Open Source) and FiveFilters Feed Creator (Freemium).
GitHub-powered open-source uptime monitor and status page. Monitor uptime every 5 minutes Using GitHub Actions, monitor unlimited webpages every 5 minutes, and store version-controlled response time stats.
Trackly monitors web pages and tells you when they change. Beautifully! We send you a screenshot of the changes as they appear on the page. Choose to monitor just the part the the page you care about. You can also choose to ignore small changes such as dates & times.
Sites Watcher checks web pages that interest you for changes. When changes are found, Sites Watcher will show you current page version with highlighted updates. As well as that, you can see previous web page version and current page version from internet.
Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).
UptimeMate helps you to find technical issues on your websites and makes sure that you are the first to know. Is your website online Checks from multiple locations worldwide. Send notifications to your team on slack and email.
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.
Fluxguard uses Google headless Chrome to monitor entire sites for changes. It provides 3 different levels of change monitoring, pixel change detecting comparing screenshots, code-level comparison of the rendered DOM, and extracted text comparison.