urlscan.io

Scans and analyzes URLs to investigate potentially malicious websites and domains, returning metadata, screenshots, and maliciousness verdicts via an API.

The urlscan.io API uses api key authentication; has freemium pricing; offers a free tier (Free plan ($0): 50 private, 1,000 unlisted, 5,000 public scans/day; 1,000 search requests/day; 10,000 result requests/day); rate limits: Per-minute, per-hour, and per-day quotas per action; fixed-window resets; exceeding returns HTTP 429; X-Rate-Limit headers returned (e.g. search 30/minute in example). Verified 2026-07-12 with per-field source links.