Website Vulnerability Scanner

Get a full website security check for known vulnerabilities and HTTP security headers

Snyk’s free website vulnerability scanner performs a passive web security scan in order to detect issues like: outdated server software and insecure HTTP headers.

Today, vulnerability management is no longer a nice-to-have but rather a critical requirement for anyone running web applications or interactive and static websites. These kinds of public-facing assets are common attack vectors for malicious actors seeking unauthorized access to systems and data. Vulnerability scanning helps to minimize risk and control vulnerabilities from the very beginning of website development.

Vulnerability scanner monitors for misconfigurations or vulnerable third-party open-source dependencies that pose cybersecurity threats. Online vulnerability scanners either rely on a database of known vulnerabilities or probe for common flaw types to discover unknown vulnerabilities. Website scanner logs detect vulnerabilities and assigns a risk score.

Security scores are based on two core metrics:1. Vulnerable versions of JavaScript libraries which were detected on the page and pose a potential security threat.2. Security headers, in which we check which HTTP security headers have been set for the website, and those which are missing but recommended to turn on. The highest grade you can get is an A+ and the lowest is an E.

You’ve scanned your website for vulnerabilities, it’s time to take the next step!

Sign up for Snyk to find, fix and monitor your vulnerabilities.

Find vulnerabilities early and
across the SDLC
  • Broad ecosystem support Languages
  • Wide set of IDE integrations
  • Native Git scanning
  • CI/CD gating
  • Production environment
Make data-driven prioritization decisions
  • Dependency tree view
  • Priority Score
  • Reachable Vulnerabilities
  • Runtime Monitoring
  • Exploit Maturity
Fix quickly to reduce exposure
  • Minimal fix required
  • Transitive dependency fix
  • Fix pull request
  • Precision patches
  • Dependency health
Prevent new vulnerabilities from entering your code base
  • Newly disclosed vulnerabilities
  • Automatic upgrades
  • Gating new dependencies
  • Alerts and notifications