Free Website Malware Scanner & Script Analyzer

Scan your website for malicious JavaScript online. Detect card skimming scripts (Magecart attacks), keyloggers, data exfiltration attempts, and suspicious third-party scripts. Protect your e-commerce customers from payment fraud instantly.

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No credit card required • Instant results

Card Skimmer Detection

Identify Magecart and other card skimming scripts that steal payment information from your checkout forms

Script Analysis

Analyze all JavaScript code for obfuscation, suspicious patterns, keyloggers, and data exfiltration attempts

Reputation Check

Check reputation of external script domains using threat intelligence feeds to identify known malicious sources

What Malware Threats We Detect

Malicious Scripts

  • Card skimming scripts (Magecart attacks)
  • Keyloggers and form interceptors
  • Data exfiltration and credential harvesting
  • Cryptojacking and cryptocurrency miners

Suspicious Patterns

  • Obfuscated JavaScript code
  • Base64-encoded malicious payloads
  • Suspicious external script domains
  • Anti-debugging and evasion techniques

Magecart & Card Skimming Attacks

Magecart attacks inject malicious JavaScript into e-commerce sites to steal credit card information during checkout. These attacks have compromised thousands of online stores, including major retailers.

Our scanner analyzes all external scripts, checks for suspicious code patterns, validates script integrity, and monitors for card skimming indicators to protect your customers and business.

  • Real-time detection of payment form interceptors
  • Identifies suspicious third-party scripts
  • Monitors for data exfiltration to unknown domains
  • Protects customer payment information
$1B+
Annual losses to web skimming
380K+
Websites infected with malware
18
Seconds average detection time

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