The best and simplest free open source website change detection, restock monitor and notification service. Restock Monitor, change detection. Designed for simplicity - Simply monitor which websites had a text change for free. Free Open source web page change detection, Website defacement monitoring, Price change and Price Drop notification.

Configurable filters for more advanced users - scrape web sites with ease using XML/CSS/xPath/JSONPath

We serve the app as a SaaS for immediate use, or if you like you can access the GitHub homepage

TechDash is desktop SEO change-monitoring software for agencies, consultants, developers and in-house teams responsible for keeping multiple websites healthy. It runs scheduled checks every 15 minutes, hourly, daily or weekly, detecting regressions before they affect search traffic, revenue or user experience.

The app includes 77 automated checks covering indexability, availability, canonicals, metadata, content, links, structured data, XML sitemaps, hreflang, analytics tags, SSL, DNS and Google Search Console signals. When an issue appears, TechDash shows the affected URL, its severity and before-and-after evidence, while alerts can be delivered through desktop notifications, Slack, Microsoft Teams or Discord. Users can also create custom checks for content or technical details specific to their websites.

Unlike a hosted monitoring service, TechDash runs on the user’s own computer and stores crawl data, screenshots and monitoring history locally. A single licence supports unlimited websites and monitored pages, subject to the computer’s capacity, without a monthly subscription. It is available for macOS, Windows, Ubuntu and other 64-bit Linux distributions.