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 - GitHub - dgtlmoon/changedetection.io: 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