Try any of 817 endpoints — live.
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Fetch a URL and return a noise-resistant fingerprint: content_hash (normalised main content, rotating-token-stripped), structural_hash (DOM skeleton), text_hash, title, meta_description, main_content (boilerplate-stripped), word_count, links[]. Store the returned snapshot/hash and feed it back to diff/monitor_check later.
The page to fingerprint. Full URL (https://example.com/page) or bare domain (example.com → https:// assumed). Only http/https; private / internal / cloud-metadata targets are SSRF-blocked. Alias: target.
Scope detection to a region instead of the whole page. Accepts a FULL CSS selector ('div.price-box > span.amount', '.product:nth-child(2)', '[data-testid=total]') OR an XPath ('//div[@id="price"]', '//table//tr[2]/td[3]') — lxml-backed. If the selector matches nothing the whole page is used and `selector_matched:false` is reported.
Follow redirects (http→https, apex→www) before fingerprinting the final URL (default true). Each hop is independently SSRF-validated.
curl -X POST https://api.reefapi.com/change-detect/v1/snapshot \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"url":"https://example.com"}'Hit Send to run this endpoint live.