⚡ SitePulse

Web Performance Risk Monitor & Regression Guard (Powered by Lighthouse)

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🧠 What is SitePulse?

SitePulse is an advanced Web Performance Risk Monitor that transforms Google Lighthouse audits into structured, actionable website intelligence.

Instead of returning raw technical metrics, SitePulse delivers:

• 📊 Overall Health Score (0–100): A single weighted metric for management visibility.
• ⚠️ Automated Risk Levels: High/Medium/Low assessment for Performance, SEO, Conversion, and Technical Debt.
• 🚨 Critical Issue Detection: Immediate surfacing of blockers like console errors or excessive DOM size.
• 💼 Business-Oriented Insights: Human-readable explanations of how technical debt affects your bottom line.
• 🔄 Regression Guard: Optional delta calculation between current and previous runs.
• 🔐 Authenticated Support: Deep audits for pages behind login screens.

SitePulse turns Lighthouse from a developer tool into a scalable monitoring system.

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🎯 Who is SitePulse for?

• SEO Agencies managing multiple clients with performance-critical rankings.
• SaaS Products preventing regressions in admin dashboards and gated areas.
• E-commerce Teams protecting conversion rates by monitoring stability (CLS) and speed (LCP).
• DevOps/SREs integrating performance-aware health checks into CI/CD.
• Product Managers tracking website hygiene without needing to read raw JSON reports.

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🚀 Why SitePulse Instead of Manual Lighthouse?

Feature	Manual Lighthouse	SitePulse
Audit Volume	One page at a time	Batch auditing at scale
Analysis	Raw technical metrics	Risk-based intelligence
Visibility	Dev-only	Unified Health Score
History	Transient results	Regression detection
Reporting	Complex JSON/HTML	Actionable business insights

SitePulse converts raw technical data into operational intelligence.

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📊 What SitePulse Analyzes

For every URL, SitePulse evaluates the full suite of Lighthouse metrics plus custom logic:

• Lighthouse Scores: Performance, SEO, Accessibility, Best Practices.
• Core Web Vitals: LCP, FCP, TBT, CLS, Speed Index.
• Efficiency: Unused JS/CSS, third-party script impact.
• Stability: Layout shifts (CLS) and main-thread blocking time.
• Technical Health: Console errors, DOM complexity, cache policies.

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📈 Overall Health Score (0–100)

SitePulse calculates a deterministic health score based on weighted categories:

• Performance → 35%
• SEO → 25%
• Accessibility → 20%
• Best Practices → 20%

This allows for easy benchmarking across pages, competitors, or deployments.

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⚠️ Built-in Risk Assessment

SitePulse automatically classifies your risk across four dimensions:

{
  "riskAssessment": {
    "performanceRisk": "High",
    "conversionRisk": "Medium",
    "technicalDebtRisk": "High",
    "seoRisk": "Low"
  }
}

Risk is determined using deterministic thresholds:

• Performance Risk: Based on LCP (>4s = High) and TBT (>2s = High).
• Conversion Risk: Based on CLS (>0.25 = High).
• Technical Debt Risk: Triggered by unused JS (>500KB), excessive DOM (>1500 elements), or console errors.
• SEO Risk: Based on the primary SEO score (<0.7 = High).

ℹ️ Note: SitePulse uses fully transparent, documented logic. No unpredictable AI guesswork.

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🚨 Critical Issues Detection

Instead of reviewing dozens of audits manually, SitePulse highlights the "must-fix" items:

{
  "criticalIssues": [
    "High Total Blocking Time",
    "Large unused JavaScript bundle",
    "Excessive DOM size",
    "Console errors detected"
  ]
}

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💼 Business-Oriented Insights

SitePulse translates technical metrics into actionable explanations for stakeholders:

• "Slow Largest Contentful Paint may impact search ranking and engagement."
• "Heavy JavaScript execution is affecting responsiveness."
• "Third-party scripts significantly block the main thread."
• "Excessive DOM size increases layout reflow cost."

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🔄 Regression Detection (Optional)

Provide a previous run ID in the input (compareWithRunId), and SitePulse will calculate the delta for key metrics:

{
  "regressionDelta": {
    "performanceDelta": -0.12,
    "lcpDelta": 800,
    "tbtDelta": 1200,
    "clsDelta": 0.03
  }
}

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🔐 Support for Authenticated Pages

SitePulse is built to audit more than just homepages. Easily monitor your gated content:

• Admin Dashboards & CRM interfaces.
• SaaS Platform private areas.
• Member-only content & communities.
• Staging environments behind basic auth or cookies.

Simply pass your session cookies in the input tab.

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⚙️ Input Options

Field	Description
Start URLs	List of URLs to audit (Public or Private).
Categories	Select Performance, SEO, Accessibility, or Best Practices.
Form Factor	Mobile (default) or Desktop emulation.
Cookies	Array of structured cookies for authentication.
Save Full Report	Set to true to store the original Lighthouse JSON.
compareWithRunId	Optional run ID to enable regression analysis.

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📤 Output Example

{
  "url": "https://example.com",
  "fetchTime": "2026-02-26T00:54:18.000Z",
  "overallHealthScore": 62,
  "riskAssessment": {
    "performanceRisk": "High",
    "conversionRisk": "Medium",
    "technicalDebtRisk": "High",
    "seoRisk": "Low"
  },
  "criticalIssues": [
    "High Total Blocking Time",
    "Large unused JavaScript bundle"
  ],
  "performanceInsights": [
    "Slow LCP may impact search ranking.",
    "Heavy JavaScript execution is affecting responsiveness."
  ],
  "regressionDelta": {
    "performanceDelta": -0.08,
    "lcpDelta": 600,
    "tbtDelta": 0,
    "clsDelta": 0
  }
}

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⚡ Recommended Configuration

• Minimum Memory: 2GB RAM.
• Large/Complex Sites: 4GB RAM recommended for stable Lighthouse runs.
• Performance Tip: Select only required categories to significantly reduce execution time and Compute Unit consumption.

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🔒 Legal & Compliance

SitePulse performs technical quality audits only. No private user data is collected or indexed. Our scrapers are ethical and do not extract any private user data, such as email addresses, gender, or location.

For more information, see our blog post on the legality of web scraping.

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📌 Monitor Performance Like a System, Not an Audit.
Stop running Lighthouse manually. Start detecting risks automatically.
SitePulse — because performance drift happens silently.