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Playground demo key · api.reefapi.com
post/generate/v1/validate_html0 credits
Lint HTML/CSS for the PDF path WITHOUT rendering: flags remote resources that the SSRF-safe renderer will block, size, and tag-balance hints. Deterministic.
Working example
Parameters
HTML document to lint.
request preview
curl -X POST https://api.reefapi.com/generate/v1/validate_html \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"html":"<img src='https://evil.example/x.png'>"}'Hit Send to run this endpoint live.