URLScan.io

URLScan.io is a free website scanner and threat analysis platform that captures screenshots, DOM snapshots, and HTTP details of any URL.

Web Analysis Phishing Detection Threat Analysis Historical Scanning

Overview

URLScan.io is a powerful, free web scanning service that provides comprehensive analysis of websites and URLs. It captures detailed information including full-page screenshots, DOM snapshots, HTTP headers, cookies, TLS/SSL details, redirect chains, and rendered JavaScript execution. The platform is widely used for threat detection, phishing analysis, malware investigation, and security research. URLScan.io offers both public and private scanning options, API access, and an extensive searchable database of historical scans, making it an essential tool for cybersecurity professionals investigating suspicious websites.

Primary Use Cases

✔ Investigating suspicious URLs and phishing emails by capturing and analyzing website behavior and content without direct interaction.

✔ Detecting malicious infrastructure by analyzing domain relationships, redirect chains, and resource loading patterns.

✔ Researching and documenting malicious websites by capturing comprehensive evidence including screenshots, DOM, and network logs.

Frequently Asked Questions

URLScan.io is a free web scanning service that analyzes websites and URLs by visiting them in a headless browser environment. It captures comprehensive data including full-page screenshots, DOM snapshots, HTTP headers, cookies, TLS/SSL certificate details, redirect chains, and rendered JavaScript execution results. Users can submit URLs for public or private scanning and search the extensive database of historical scans.

Yes, URLScan.io offers a generous free tier that allows users to submit URLs for public scanning and access the public database of scans. The service also offers paid plans for organizations requiring private scanning, higher scan limits, API access, and additional features. The free tier is sufficient for many security researchers and threat analysts.

A URLScan.io scan provides a comprehensive analysis including a full-page screenshot, detailed DOM snapshot, HTTP request/response headers, cookies, TLS/SSL certificate information, redirect chain, IP addresses, domain relationships, and lists of resources loaded (scripts, stylesheets, images, fonts). The scan also includes rendered JavaScript execution results and security-related indicators.

Yes, URLScan.io provides a fully documented REST API that allows programmatic submission of URLs for scanning, retrieval of scan results, and searching the scan database. The API supports authentication via API keys and offers endpoints for submitting new scans, checking scan status, and retrieving detailed results in JSON format. The API is available for both free and paid plans with different rate limits.

URLScan.io is a critical tool for security investigations including phishing analysis, malware campaigns, threat hunting, and incident response. Investigators can submit suspicious URLs for sandbox-like analysis to understand behavior without risk, search historical scans for related infrastructure, gather evidence with screenshots and DOM snapshots, and correlate findings with other threat intelligence sources.