Versionista might be a bit more popular than SiteDelta. We know about 1 link to it since March 2021 and only 1 link to SiteDelta. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I haven't used any in recent years so I'm not up to speed with the pros/cons of each, but PageProbe, SiteDelta Watch, and Distill Web Monitor are a few to try. Source: almost 2 years ago
There's a great platform out of Portland called Versionista (https://versionista.com/) which has been working closely with the government and other entities to understand changes that happen on websites or even internal documentation managed by multiple teams. - Source: Hacker News / 9 months ago
Visualping - Visualping is the easiest to use website checker, webpage change monitoring, website change detector and website change alert software of the web. Read more about Visualping.
Wachete - Track web page changes and get notified. Free Sign-up. Have all data in one place
Distill Web Monitor - Distill is a web monitoring tool. It can monitor RSS feeds, a webpage or a part of webpage. Alerts in the form of pop-up, audio or emails can be received.
PageProbe - Automatic Page Monitor - Create automatic monitors for detecting and scanning changes on web pages, evaluate content based...
WebSite-Watcher - WebSite-Watcher detects website updates and highlights all changes in the text. WebSite-Watcher monitors web pages, password protected pages, disucssion forums and much more.
Page Monitor - Stays in the background and monitors web pages for changes.