Tools for checking any web page
Quick answers about pages you aren't watching yet. No sign-up needed, and they work for any public page.
Free tool
What changed on a page?
Compare any page with how it looked a week, a month or a year ago, in plain English.
Free tool
Every change over the past year
A dated timeline of what changed on a page, month by month, from the Internet Archive's copies.
Free tool
When was a page last updated?
Every date clue we can find, from the page itself to its sitemap and the archive, with our best estimate.
Free tool
Price drop alerts
Get one email when a single product's price changes. No account needed.
Free to browse
Price changes we track
Subscriptions, bills and allowances we check every day, with every change dated.