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PagePulse

Instant website report card — beautiful real-time security, SSL, DNS, and tech analysis with a halftone generative art UI.

Powered by sentinel-mcp.

What it does

Enter any URL and get a live security report card in seconds. PagePulse streams results in real time as each scan completes:

Scan What it checks
HTTP Security Headers HSTS, CSP, X-Frame-Options, and 7+ more headers — graded A+ to F
SSL/TLS Certificate Cert validity, expiry, trust chain, protocol version, cipher strength
DNS & Email Security SPF, DMARC, DKIM, CAA records — flags email spoofing risk
Technology Fingerprint Detects web servers, frameworks, CMS, CDN/WAF from headers + HTML
Port Scan 30 high-risk ports checked, flags exposed databases/RDP/Telnet

Results include an overall grade, critical findings, MITRE ATT&CK mapping, and per-category score breakdowns.

Design

  • Halftone dot animated canvas background (mouse-reactive)
  • Blue #1a3adb on cream #f5f0e8 color palette
  • Space Grotesk + Space Mono typography
  • Real-time progress indicators via Server-Sent Events
  • Animated grade circle rendered with canvas dots

Quick start

# 1. Build sentinel-mcp (the scanning engine)
cd sentinel-mcp
npm install
npm run build

# 2. Start PagePulse
cd ../pagepulse
npm install
npm start

Open http://localhost:3000 and scan any site.

Tech stack

  • Frontend: Vanilla HTML/CSS/JS, Canvas API, SSE
  • Backend: Express.js (v5), Node.js
  • Scanning engine: sentinel-mcp — zero external dependencies, uses Node built-in tls, dns, net, https

Authorization

Only scan targets you are authorized to test. This tool is intended for defensive security assessments, penetration testing engagements, and educational use.

License

MIT