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SiteDelta
see what changed·sitedelta.schierla.de
SiteDelta was a Firefox extension (from Firefox version 4 onward) that highlighted changes in a webpage's text since the last visit and could periodically check pages for changes. In 2017 it was rebuilt as a WebExtension and split into two separate products, SiteDelta Highlight and SiteDelta Watch, both available for Firefox and Chrome. SiteDelta Highlight lets users manually highlight text changed since their last click on the toolbar button, while SiteDelta Watch periodically monitors chosen pages and notifies the user when they change, highlighting the changed content.
What it's for
Getting notified about available software updates by monitoring a download pageDetecting surprising date/schedule changes announced on a homepageMonitoring pages that change frequently but don't offer an RSS feed, e.g. social network pages, to see new photos immediatelyMonitoring search engine results for changes on a search termHighlighting text changed on a webpage since the last visitSaving time by not having to manually recheck homepages for updates
Features 14
- Archiving page versions on request (currently unavailable)
- Automatic search for changes with adjustable time interval
- Can automatically highlight changes upon visiting a page (extended functionality)
- Can check all known/watched pages on command
- Checking password-protected pages via HTTP-Authentication (currently unavailable)
- Click to highlight changed text on the current page since last click
- Cycle through detected changes with repeated clicks
- Detects changed images (when the filename changes)
- Detects inserted, deleted, and moved text
- Ignoring uninteresting or frequently changing areas (e.g. current date, counters)
- Saving selected areas as a preset for similarly structured pages (currently unavailable)
- Selection of interesting areas of a page to monitor
- SiteDelta Watch and SiteDelta Highlight can be installed in parallel
- Toolbar button/icon for quick access
At a glance
TypeBrowser extension
DeploymentInstalled (local)
LanguagesGerman, English
CompanyAndreas Schierl