Free Website Malware and Security Scanner

Enter your domain to check for malware, vulnerabilities, and other security issues.

How to check websites with SiteLock

To use our scanning tool, follow these steps:

  1. Type in your website’s domain (for example, mywebsite.com)
  2. Click the “Scan Now” button
  3. Wait approximately 60 seconds for the tool to finish scanning
  4. During the free external scan, SiteLock will check for known malware, malicious code, and other vulnerabilities to ensure your site is secure and up-to-date
  5. Review the scan results and remediation recommendations if security issues are found

Please note that this free tool cannot guarantee a site is completely free of malware or vulnerabilities. Even if your scan shows as secure, serious functionality issues or a sudden drop in traffic should still be investigated. In most cases, a comprehensive security plan with automated daily site scans is strongly recommended for ongoing protection.

Does this security scan detect all types of malware?

SiteLock's free website scan detects many types of known malware visible externally, without needing access to your code. However, some issues may not be detectable without web server access. For full protection, we highly recommend running a comprehensive scan if you suspect deeper server-level risks.

If you believe your site has already been hacked, you must act now. Quick remediation is critical. Review our SiteLock 911 plans and pricing or speak with a SiteLock specialist. Our security team will work with you to remove malware and set up website monitoring and firewalls to help prevent future security vulnerabilities. Protect your website, brand reputation, and search engine rankings with SiteLock.

FAQs

What does the SiteLock free website scan check for?

The SiteLock free scan performs an external review of your site to look for known malware issues such as malicious JavaScript, suspicious redirects, blacklist warnings, exposed plugins, outdated software, and other visible vulnerabilities. It also detects whether your site is using a CDN. The scan gives you a quick snapshot of your website’s current security posture.

Why use a website scanner and how often should you scan your site?

The free website scan provides a quick way to spot visible malware or vulnerabilities and understand your site’s current security status. Because new threats appear constantly, most security experts recommend scanning at least once per day. Automated daily monitoring offers stronger protection than manual scans like this free tool by detecting threats faster and reducing the amount of time attackers can operate undetected.

How is SiteLock’s free scan different from SiteLock’s paid security plans?

The free scan offers a one-time external check. SiteLock’s paid plans include continuous, automated daily scanning that connects directly to your website code, files, and database allowing it to detect threats the external scan cannot see. The plans also include automatic malware removal, vulnerability patching, firewall protection, and daily website backups. These advanced tools help stop attacks before they escalate and provide full remediation support if malware is found. The free scan can only detect visible issues at the moment you run it. SiteLock’s paid plans go further with continuous monitoring, deeper detection, and automated security features for stronger, always-on protection.

What should I do if this website checker finds malware or security issues?

If the scan reports a problem, review the recommended remediation steps right away. For active infections, use SiteLock 911 or purchase a full security plan to remove malware, clean infected files, and secure weak points. SiteLock security experts are available to guide you through cleanup and help prevent future attacks with ongoing monitoring.

Reduce your website security risks

Get started with SiteLock today

SiteLock quickly removes threats, restores functionality, and helps prevent future attacks, all backed by continuous monitoring and support.