A fact changed on Wikipedia. See the before and after — and whether top search pages still say the old fact.

Staleproof shows the Wikipedia change, then samples top non-Wikipedia search pages to see whether they still say the old fact. Free, no login.

A major Wikipedia update can expose a freshness gap. Staleproof surfaces the update, the facts behind it, and a sample of whether top search pages already carry them — including the AI Overview and the text of those pages. That sample is not a census of the open web.

• Live feed of scored knowledge updates, free and no login
• Before/after excerpts for every flagged change
• Impact score with a separate confidence signal
• Web catch-up check against live search results
• Update-frequency history for every flagged article

Explore the live dashboard at staleproof.com/opportunities or join early access at staleproof.com/signup.

Text excerpts from Wikipedia are licensed under CC BY-SA 4.0.