TL;DR
URLVoid, urlscan.io, and VirusTotal are indispensable free tools for daily security checks. Here is how to use them effectively.
Educational guide recommending security tools (URLVoid, urlscan.io, VirusTotal) for daily threat analysis. Security best practice recommendation with no immediate threat.
Security teams deal with a constant stream of suspicious URLs. Phishing emails, user-reported links, threat intel feeds, and incident response triage all demand quick, reliable assessment of whether a URL is malicious. Manual investigation of every link is impractical. These three tools provide complementary capabilities that, when used together, give you a comprehensive picture of any URL's risk profile in minutes.
URLVoid is a reputation meta-checker that queries over 30 blocklist engines simultaneously. Instead of checking individual blacklists one at a time, URLVoid gives you a single dashboard showing detection rates across multiple threat intelligence sources.
URLVoid is ideal as a first-pass triage tool. When a user reports a suspicious email, paste the URL into URLVoid before doing anything else. If multiple engines flag it, you have a quick answer. If the results are clean but the domain is only days old, that alone warrants further investigation.
The service also offers an API for integrating reputation checks into automated workflows, SOAR playbooks, or custom scripts.
urlscan.io goes far beyond reputation checking. It is an automated web page scanner that actually loads the URL in a sandboxed browser and records everything that happens: HTTP transactions, DNS lookups, JavaScript execution, cookies set, redirects followed, and the final rendered page.
urlscan.io is your go-to for any URL that passes basic reputation checks but still looks suspicious. Submit the URL, wait for the scan to complete, and review the screenshot first. Phishing pages are often immediately obvious from the rendered output.
Next, check the redirect chain. Legitimate sites rarely bounce through three or four unrelated domains before landing. The HTTP transactions tab reveals everything the page loads: if a seemingly harmless page is pulling scripts from a known malware distribution network, urlscan.io will show it.
The platform offers free public scans and paid private scans for sensitive investigations where you do not want the target to appear in public results.
VirusTotal needs little introduction. Acquired by Google (now part of Alphabet's Chronicle), it is the de facto standard for scanning files, URLs, domains, and IP addresses against 70+ antivirus engines and URL reputation services.
VirusTotal excels at definitive verdicts. When you need to know whether a specific URL or file is malicious and want the broadest possible consensus, VirusTotal is the answer. The detection ratio (e.g., 12/72 engines) provides an immediately actionable confidence score.
For URL analysis, submit the link and review not just the detection count but the Details and Relations tabs. The Details tab shows HTTP response information, redirects, and the final URL. The Relations tab reveals associated files downloaded from that URL, other URLs hosted on the same domain, and connected infrastructure.
VirusTotal's historical database is also invaluable for threat hunting. Search for a domain and you can see every file ever submitted from that domain, every URL path scanned, and how detections have changed over time.
Each tool has strengths that complement the others. Here is an efficient daily workflow for triaging a suspicious URL:
This layered approach catches threats that any single tool might miss. A brand-new phishing page might not be in blacklists yet (URLVoid clean), but urlscan.io will show it rendering a fake login page, and VirusTotal might reveal the hosting IP is associated with known campaigns.
All three tools offer APIs suitable for integration into security workflows:
| Tool | Free API | Rate Limit | Best For |
|---|---|---|---|
| URLVoid | Yes (limited) | Varies by plan | Bulk reputation checks |
| urlscan.io | Yes | 50 scans/day (free) | Automated page analysis |
| VirusTotal | Yes | 4 requests/min (free) | Multi-engine verdicts |
For teams handling high volumes of suspicious URLs, consider building a simple automation script that runs all three checks in parallel and produces a consolidated report. Many SOAR platforms include built-in integrations for all three services.