Monitor page sections, competitor pricing and website changes from your browser. Local-first alerts and clean diffs.
Users
3
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#342K
#265K among extensions
Version
0.1.1
updated 11 May 2026
Users
monthly, 6 months
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About SectionSignal - Website Change Monitor
SectionSignal helps founders, marketers, researchers and operators track important website changes without setting up a cloud monitoring account.
Select a page section, save it as a monitor, and SectionSignal will check it from your browser while Chrome is open. When meaningful text changes, SectionSignal keeps a local history and shows a clean before/after summary.
Use SectionSignal for competitor pricing pages, product and changelog pages, headline and landing-page changes, job pages, funding/news pages, and any page section you can access in your browser.
Core features:
- click-to-select page sections
- local snapshots and diff history
- desktop notifications
- pause, resume and delete monitors
- no account, no tracking, no remote code
- all monitor data stays in browser storage
Important: SectionSignal v1 checks pages locally while Chrome is open and the watched page is accessible. It is not a cloud uptime monitor and does not check pages when the browser is closed.