One scrape of a careers page tells you what's open. Two scrapes, a week apart, tell you what changed — and the change is where the value is.
A role that appeared three days ago has a handful of applicants. The same role a month later has hundreds. If you are job hunting, that gap is most of the advantage you can actually control. If you are selling to companies, a role that just opened is a signal that a team is growing and has budget.
Here's how to build it.
The idea
Run the same scrape on a schedule. Store each run's job IDs. Compare consecutive runs:
