SEO & Analytics Auditor

Audit SEO, verify analytics, and optimize Core Web Vitals.

When to Use

Use for:

• Auditing SEO meta tags and structured data
• Verifying analytics implementations (GA4, Cloudflare)
• Checking Core Web Vitals (LCP, INP, CLS)
• Troubleshooting Search Console issues
• Validating Open Graph and Twitter Card meta tags
• Reviewing robots.txt and sitemap.xml

Quick Audit Workflow

# 1. Run Lighthouse audit
npx lighthouse https://yoursite.com --output=html --output-path=./audit.html

# 2. Check Core Web Vitals
npx lighthouse https://yoursite.com --only-categories=performance

# 3. Validate structured data
# Open: https://search.google.com/test/rich-results

SEO Checklist

Meta Tags (Required)

<title>Page Title - Brand (50-60 chars)</title>
<meta name="description" content="Description (150-160 chars)" />
<meta name="robots" content="index, follow" />
<link rel="canonical" href="https://domain.com/page/" />

Open Graph (Social Sharing)

<meta property="og:type" content="website" />
<meta property="og:url" content="https://domain.com/" />
<meta property="og:title" content="Title" />
<meta property="og:description" content="Description" />
<meta property="og:image" content="https://domain.com/og-image.png" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />

Twitter Card

<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="Title" />
<meta name="twitter:description" content="Description" />
<meta name="twitter:image" content="https://domain.com/og-image.png" />

Schema.org (Structured Data)

<script type="application/ld+json">
  {
    "@context": "https://schema.org",
    "@type": "Person",
    "name": "Name",
    "jobTitle": "Title",
    "url": "https://domain.com"
  }
</script>

Analytics Implementation

Google Analytics 4

<script
  async
  src="https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXXXX"
></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag() {
    dataLayer.push(arguments);
  }
  gtag("js", new Date());
  gtag("config", "G-XXXXXXXXXX", {
    anonymize_ip: true,
    cookie_flags: "SameSite=None;Secure",
  });
</script>

Cloudflare Web Analytics

<script
  defer
  src="https://static.cloudflareinsights.com/beacon.min.js"
  data-cf-beacon='{"token": "YOUR_TOKEN"}'
></script>

Core Web Vitals Targets (2025)

Metric	Good	Needs Improvement	Poor
LCP (Largest Contentful Paint)	< 2.5s	2.5s - 4s	> 4s
INP (Interaction to Next Paint)	< 200ms	200ms - 500ms	> 500ms
CLS (Cumulative Layout Shift)	< 0.1	0.1 - 0.25	> 0.25

Testing Tools

Tool	URL	Purpose
PageSpeed Insights	https://pagespeed.web.dev	Core Web Vitals
Rich Results Test	https://search.google.com/test/rich-results	Schema.org
OpenGraph.xyz	https://www.opengraph.xyz	Social preview

Files to Check

• index.html - Meta tags, analytics scripts, Schema.org
• robots.txt - Crawler directives, sitemap reference
• sitemap.xml - URL list, lastmod dates
• manifest.json - PWA config

Common Issues

Issue	Fix
Meta description too short	Use 150-160 characters
Missing canonical URL	Add <link rel="canonical">
OG image wrong size	Use 1200x630 for best display
Schema.org errors	Test with Rich Results Test
Analytics not firing	Check browser console for errors

Integration Checklist

• Google Search Console verified
• Sitemap submitted to GSC
• GA4 property created and linked
• Core Web Vitals in "Good" range
• Rich Results test passing
• Social preview working

See Also

• Google SEO Starter Guide
• Core Web Vitals
• Schema.org