Paste a page and the CSS selectors your scraper reads. We fetch the page once, the way a plain HTTP scraper does (no JavaScript rendering), and show which selectors still match, how many elements, and what the first match contains. We don't get around bot protection; if the site blocks us, we say so.
We're building Selectorwatch: it checks the pages and selectors your scrapers depend on every day and alerts you when one stops matching or starts returning something different, with a suggested replacement selector to review. Get early access (free).
Had a scraper break recently? Tell us what happened (4 questions). Only check pages you're allowed to scrape. Built by Hieu Tran with AI agents.