Scan URLs for phishing and malware
Check any URL against threat intelligence feeds, analyze redirect chains, and detect phishing attempts in real-time.
Get instant threat analysis with risk scores, threat categories, and detailed reports.
Everything you need to protect your infrastructure and users
Follow up to 10 redirects and expose the full redirect chain to catch cloaked threats.
ML-powered detection of phishing pages, even for brand-new sites not yet in blocklists.
Detect drive-by downloads, exploit kits, and malicious JavaScript on destination pages.
Check certificate validity, issuer, and detect suspicious certificate patterns.
Get visual screenshots of scanned pages for manual verification.
Check against Google Safe Browsing, PhishTank, and other authoritative sources.
How security teams use this tool
Check URLs in emails before users click to prevent phishing.
Scan URLs shared in Slack, Teams, or other chat platforms.
Verify advertiser landing pages are safe before serving ads.
Power safe browsing extensions with real-time URL checks.
URLs are the primary attack vector for delivering phishing pages, malware downloads, and exploit kits to unsuspecting users. A single malicious click can compromise credentials, install ransomware, or grant attackers persistent access to corporate networks. URL scanning provides a critical security layer by analyzing links before users interact with them, checking not just the visible URL but following redirect chains, inspecting landing pages, and detecting threats that evade traditional blocklists.
Our URL scanner performs comprehensive analysis in multiple stages: first, we parse and validate the URL structure looking for suspicious patterns and encoding tricks. Next, we check the domain and IP against reputation databases. Then we follow up to 10 redirects, recording each hop in the chain to expose cloaked destinations. For advanced scans, we render the page in a sandboxed browser, capture screenshots, analyze JavaScript behavior, and check for credential harvesting forms or malicious downloads. All results are available in under 2 seconds.
Attackers weaponize URLs in numerous ways: phishing URLs mimic legitimate login pages to harvest credentials, malware URLs trigger drive-by downloads when visited, redirect chains bounce through multiple domains to evade detection, URL shorteners obscure malicious destinations, typosquatted URLs exploit typing mistakes, and watering hole URLs compromise trusted sites to target specific organizations. Our scanner detects all these patterns using signature-based detection, machine learning, and behavioral analysis.
Implement URL scanning at multiple layers for defense in depth: scan URLs in emails before delivery, check links in chat messages and collaboration platforms, integrate with browser extensions for real-time protection, add scanning to your web proxy, and validate URLs in customer submissions to prevent abuse of your platform. Our API enables all these use cases with consistent threat intelligence and customizable risk thresholds for different security contexts.
Learn more from our security research blog
Join thousands of security teams using isMalicious to protect their infrastructure.