seo-analytics-auditor git:20251217.3f83b43C

Immutable. This exact content never changes and is served at /api/v1/blob/02d13ed043fa94b0.

# SEO & Analytics Auditor Skill

Use this skill when auditing SEO, analyzing Core Web Vitals, verifying meta tags, checking structured data, or troubleshooting analytics implementations. Covers Google Search Console, Google Analytics 4, Cloudflare Web Analytics, and technical SEO best practices.

## When to Use

- Auditing SEO meta tags and structured data (Schema.org)
- 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

## SEO Checklist

### Meta Tags (Required)
```html
<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)
```html
<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
```html
<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)
```html
<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
```html
<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
```html
<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 |
| Mobile-Friendly Test | https://search.google.com/test/mobile-friendly | Mobile UX |
| OpenGraph.xyz | https://www.opengraph.xyz | Social preview |
| Security Headers | https://securityheaders.com | Security audit |

## 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` / `site.webmanifest` - PWA config

## Common Issues

1. **Meta description too short** - Should be 150-160 characters
2. **Missing canonical URL** - Can cause duplicate content issues
3. **OG image wrong size** - Recommended 1200x630 for best display
4. **Schema.org errors** - Test with Rich Results Test
5. **Analytics not firing** - Check browser console for errors
6. **Wrong domain in meta tags** - Ensure production URLs

## Integration Checklist

- [ ] Google Search Console verified
- [ ] Sitemap submitted to GSC
- [ ] GA4 property created and linked to GSC
- [ ] Search Console reports published in GA4
- [ ] Cloudflare Analytics verified working
- [ ] Core Web Vitals in "Good" range
- [ ] Rich Results test passing

## References

- [Google SEO Starter Guide](https://developers.google.com/search/docs/fundamentals/seo-starter-guide)
- [Core Web Vitals](https://web.dev/articles/vitals)
- [Schema.org](https://schema.org/docs/gs.html)
- [Open Graph Protocol](https://ogp.me/)