Web Vitals

Measure metrics for a healthy site + Server Info + SEO Analysis

Web Vitals Extension Enhanced - Complete Website Performance, SEO & Infrastructure Analysis The most comprehensive Chrome extension for website analysis. Combines Google's official Web Vitals metrics with advanced SEO analysis, security scoring, server intelligence, and DNS diagnostics in one powerful tool. WHAT YOU GET Core Web Vitals Monitoring Real-time performance metrics (LCP, CLS, INP, FCP, TTFB) plus field data from Chrome UX Report. Color-coded performance indicators show you instantly if a site passes Google's thresholds. SEO Analysis Tab (NEW) Comprehensive on-page SEO scoring that analyzes: - SEO Score (0-100): Evaluates title tags, meta descriptions, heading structure, image alt text, canonical URLs, Open Graph, structured data, and security headers - Domain Authority (0-100): Estimates domain strength based on TLD quality, HTTPS, security configuration, and domain characteristics - Domain Rating (0-100): Assesses potential backlink quality and link profile strength Instant detection of SEO issues like missing meta tags, images without alt text, multiple H1s, security vulnerabilities, and more. All analysis happens locally in your browser—no page content transmitted. Server Intelligence Reveals hosting infrastructure: IP addresses, geographic location with coordinates, ISP details, ASN, and timezone. Essential for verifying CDN setup, local SEO audits, and infrastructure debugging. Complete DNS Analysis Shows all record types (A, AAAA, CNAME, MX, NS, TXT, SOA) in one view. Debug email delivery, verify domain ownership, check DNS propagation, and audit configurations without switching tools. WHY THIS EXTENSION Built for Professionals Developers get performance and SEO metrics alongside technical details. SEO specialists can audit sites instantly. System administrators verify DNS and hosting in seconds. All without leaving your browser. Privacy-First Design Zero tracking, no data collection. API calls only when you request them. Uses free public APIs (Mozilla Observatory for security, ipwhois.app for geolocation, and Google DNS) with HTTPS-only connections. All SEO analysis happens locally—only domain names are sent to APIs, never your page content. No Paid APIs Required 100% free to use. No API keys needed from Moz, Ahrefs, or SEMrush. Unlimited usage with smart local algorithms inspired by professional SEO tools. TECHNICAL FEATURES Smart Analysis - Lazy loading: Fetches data only when needed, keeping the extension fast - Local SEO scoring: Domain Authority and Rating calculated in-browser - Parallel API queries: Results in 2-3 seconds - Non-blocking architecture: UI stays responsive even if APIs fail - Modern tabbed interface: Separates Web Vitals, SEO, Server, and DNS cleanly Visual Indicators - Animated circular score indicators for SEO metrics - Color-coded status (Green ≥70, Orange 40-69, Red <40) - Issue detection with actionable recommendations - Length indicators for title and meta description optimization Original Features Preserved Includes all Google Web Vitals Extension features: ambient badge indicators, console logging, HUD overlay, and Chrome UX Report integration. WHO USES THIS - SEO Specialists: Instant audits of on-page optimization, security headers, and domain metrics - Web Developers: Debug performance bottlenecks while checking SEO implementation - DevOps Engineers: Verify infrastructure changes and security configurations - Digital Marketers: Quick site analysis during competitor research - Content Creators: Ensure pages meet SEO best practices before publishing SEO SCORING METHODOLOGY SEO Score Factors (88 points + bonuses): - Optimized title (30-60 chars) - 10 pts - Meta description (120-160 chars) - 10 pts - Single H1 tag - 8 pts - Images with alt text - 8 pts - Canonical URL - 4 pts - Mobile viewport - 4 pts - Language & charset - 8 pts - Open Graph tags - 8 pts - Structured data - 8 pts - Internal links - 4 pts - Robots.txt compliance - 4 pts - HTTPS, HSTS, CSP - 12 pts Domain Authority (0-100 estimated): Based on HTTPS status, TLD quality (.gov/.edu score highest), domain length (shorter = older/premium), security configuration, and recognized brand status. Domain Rating (0-100 estimated): Focuses on backlink potential through domain quality indicators: security strength, TLD premium status, name characteristics (no hyphens/numbers scores higher). TRANSPARENCY What We Don't Do: - Query real backlink databases (requires paid APIs) - Verify actual domain age via WHOIS - Count real backlinks (requires crawler infrastructure) - Track your browsing or collect personal data What We Do: - Provide smart estimations based on verifiable factors - Combine on-page analysis with domain characteristics - Use algorithms inspired by Moz DA and Ahrefs DR - Offer instant insights for quick audits and reports INSTALLATION & USAGE 1. Install from Chrome Web Store 2. Navigate to any website 3. Click the extension icon No configuration required. No API keys needed. Just install and analyze. OPEN SOURCE Enhanced fork of Google's official Web Vitals Extension with SEO analysis, server intelligence, and DNS tools added.