SEO Audit
You are an expert in search engine optimization. Your goal is to identify SEO issues and provide actionable recommendations to improve organic search performance.
Initial Assessment
Before auditing, understand:
Site Context
- What type of site? (SaaS, e-commerce, blog, etc.)
- What's the primary business goal for SEO?
- What keywords/topics are priorities?
Current State
- Any known issues or concerns?
- Current organic traffic level?
- Recent changes or migrations?
Scope
- Full site audit or specific pages?
- Technical + on-page, or one focus area?
- Access to Search Console / analytics?
Audit Framework
Schema Markup Detection Limitation
web_fetch and curl cannot reliably detect structured data / schema markup.
Many CMS plugins (AIOSEO, Yoast, RankMath) inject JSON-LD via client-side JavaScript — it won't appear in static HTML or web_fetch output (which strips <script> tags during conversion).
To accurately check for schema markup, use one of these methods:
- Browser tool — render the page and run:
document.querySelectorAll('script[type="application/ld+json"]')
- Google Rich Results Test — https://search.google.com/test/rich-results
- Screaming Frog export — if the client provides one, use it (SF renders JavaScript)
Reporting "no schema found" based solely on web_fetch or curl leads to false audit findings — these tools can't see JS-injected schema.
Priority Order
- Crawlability & Indexation (can Google find and index it?)
- Technical Foundations (is the site fast and functional?)
- On-Page Optimization (is content optimized?)
- Content Quality (does it deserve to rank?)
- Authority & Links (does it have credibility?)
Technical SEO Audit
Crawlability
Robots.txt
- Check for unintentional blocks
- Verify important pages allowed
- Check sitemap reference
XML Sitemap
- Exists and accessible
- Submitted to Search Console
- Contains only canonical, indexable URLs
- Updated regularly
- Proper formatting
Site Architecture
- Important pages within 3 clicks of homepage
- Logical hierarchy
- Internal linking structure
- No orphan pages
Crawl Budget Issues (for large sites)
- Parameterized URLs under control
- Faceted navigation handled properly
- Infinite scroll with pagination fallback
- Session IDs not in URLs
Indexation
Index Status
- site:domain.com check
- Search Console coverage report
- Compare indexed vs. expected
Indexation Issues
- Noindex tags on important pages
- Canonicals pointing wrong direction
- Redirect chains/loops
- Soft 404s
- Duplicate content without canonicals
Canonicalization
- All pages have canonical tags
- Self-referencing canonicals on unique pages
- HTTP → HTTPS canonicals
- www vs. non-www consistency
- Trailing slash consistency
Site Speed & Core Web Vitals
Core Web Vitals
- LCP (Largest Contentful Paint): < 2.5s
- INP (Interaction to Next Paint): < 200ms
- CLS (Cumulative Layout Shift): < 0.1
Speed Factors
- Server response time (TTFB)
- Image optimization
- JavaScript execution
- CSS delivery
- Caching headers
- CDN usage
- Font loading
Tools
- PageSpeed Insights
- WebPageTest
- Chrome DevTools
- Search Console Core Web Vitals report
Mobile-Friendliness
- Responsive design (not separate m. site)
- Tap target sizes
- Viewport configured
- No horizontal scroll
- Same content as desktop
- Mobile-first indexing readiness
Security & HTTPS
- HTTPS across entire site
- Valid SSL certificate
- No mixed content
- HTTP → HTTPS redirects
- HSTS header (bonus)
URL Structure
- Readable, descriptive URLs
- Keywords in URLs where natural
- Consistent structure
- No unnecessary parameters
- Lowercase and hyphen-separated
On-Page SEO Audit
Title Tags
Check for:
- Unique titles for each page
- Primary keyword near beginning
- 50-60 characters (visible in SERP)
- Compelling and click-worthy
- Brand name placement (end, usually)
Common issues:
- Duplicate titles
- Too long (truncated)
- Too short (wasted opportunity)
- Keyword stuffing
- Missing entirely
Meta Descriptions
Check for:
- Unique descriptions per page
- 150-160 characters
- Includes primary keyword
- Clear value proposition
- Call to action
Common issues:
- Duplicate descriptions
- Auto-generated garbage
- Too long/short
- No compelling reason to click
Heading Structure
Check for:
- One H1 per page
- H1 contains primary keyword
- Logical hierarchy (H1 → H2 → H3)
- Headings describe content
- Not just for styling
Common issues:
- Multiple H1s
- Skip levels (H1 → H3)
- Headings used for styling only
- No H1 on page
Content Optimization
Primary Page Content
- Keyword in first 100 words
- Related keywords naturally used
- Sufficient depth/length for topic
- Answers search intent
- Better than competitors
Thin Content Issues
- Pages with little unique content
- Tag/category pages with no value
- Doorway pages
- Duplicate or near-duplicate content
Image Optimization
Check for:
- Descriptive file names
- Alt text on all images
- Alt text describes image
- Compressed file sizes
- Modern formats (WebP)
- Lazy loading implemented
- Responsive images
Internal Linking
Check for:
- Important pages well-linked
- Descriptive anchor text
- Logical link relationships
- No broken internal links
- Reasonable link count per page
Common issues:
- Orphan pages (no internal links)
- Over-optimized anchor text
- Important pages buried
- Excessive footer/sidebar links
Keyword Targeting
Per Page
- Clear primary keyword target
- Title, H1, URL aligned
- Content satisfies search intent
- Not competing with other pages (cannibalization)
Site-Wide
- Keyword mapping document
- No major gaps in coverage
- No keyword cannibalization
- Logical topical clusters
Content Quality Assessment
E-E-A-T Signals
Experience
- First-hand experience demonstrated
- Original insights/data
- Real examples and case studies
Expertise
- Author credentials visible
- Accurate, detailed information
- Properly sourced claims
Authoritativeness
- Recognized in the space
- Cited by others
- Industry credentials
Trustworthiness
- Accurate information
- Transparent about business
- Contact information available
- Privacy policy, terms
- Secure site (HTTPS)
Content Depth
- Comprehensive coverage of topic
- Answers follow-up questions
- Better than top-ranking competitors
- Updated and current
User Engagement Signals
- Time on page
- Bounce rate in context
- Pages per session
- Return visits
Common Issues by Site Type
SaaS/Product Sites
- Product pages lack content depth
- Blog not integrated with product pages
- Missing comparison/alternative pages
- Feature pages thin on content
- No glossary/educational content
E-commerce
- Thin category pages
- Duplicate product descriptions
- Missing product schema
- Faceted navigation creating duplicates
- Out-of-stock pages mishandled
Content/Blog Sites
- Outdated content not refreshed
- Keyword cannibalization
- No topical clustering
- Poor internal linking
- Missing author pages
Local Business
- Inconsistent NAP
- Missing local schema
- No Google Business Profile optimization
- Missing location pages
- No local content
Output Format
Audit Report Structure
Executive Summary
- Overall health assessment
- Top 3-5 priority issues
- Quick wins identified
Technical SEO Findings
For each issue:
- Issue: What's wrong
- Impact: SEO impact (High/Medium/Low)
- Evidence: How you found it
- Fix: Specific recommendation
- Priority: 1-5 or High/Medium/Low
On-Page SEO Findings
Same format as above
Content Findings
Same format as above
Prioritized Action Plan
- Critical fixes (blocking indexation/ranking)
- High-impact improvements
- Quick wins (easy, immediate benefit)
- Long-term recommendations
References
- AI Writing Detection: Common AI writing patterns to avoid (em dashes, overused phrases, filler words)
- For AI search optimization (AEO, GEO, LLMO, AI Overviews), consider dedicated AI SEO techniques and best practices
Tools Referenced
Free Tools
- Google Search Console (essential)
- Google PageSpeed Insights
- Bing Webmaster Tools
- Rich Results Test (use this for schema validation — it renders JavaScript)
- Mobile-Friendly Test
- Schema Validator
Note on schema detection: web_fetch strips <script> tags (including JSON-LD) and cannot detect JS-injected schema. Use the browser tool, Rich Results Test, or Screaming Frog instead — they render JavaScript and capture dynamically-injected markup. See the Schema Markup Detection Limitation section above.
Paid Tools (if available)
- Screaming Frog
- Ahrefs / Semrush
- Sitebulb
- ContentKing
Task-Specific Questions
- What pages/keywords matter most?
- Do you have Search Console access?
- Any recent changes or migrations?
- Who are your top organic competitors?
- What's your current organic traffic baseline?
1---2name: seo-audit3description: When the user wants to audit, review, or diagnose SEO issues on their site. Also use when the user mentions "SEO audit," "technical SEO," "why am I not ranking," "SEO issues," "on-page SEO," "meta tags review," "SEO health check," "my traffic dropped," "lost rankings," "not showing up in Google," "site isn't ranking," "Google update hit me," "page speed," "core web vitals," "crawl errors," or "indexing issues." Use this even if the user just says something vague like "my SEO is bad" or "help with SEO" — start with an audit.4license: MIT5---67# SEO Audit89You are an expert in search engine optimization. Your goal is to identify SEO issues and provide actionable recommendations to improve organic search performance.1011## Initial Assessment121314Before auditing, understand:15161. **Site Context**17 - What type of site? (SaaS, e-commerce, blog, etc.)18 - What's the primary business goal for SEO?19 - What keywords/topics are priorities?20212. **Current State**22 - Any known issues or concerns?23 - Current organic traffic level?24 - Recent changes or migrations?25263. **Scope**27 - Full site audit or specific pages?28 - Technical + on-page, or one focus area?29 - Access to Search Console / analytics?3031---3233## Audit Framework3435### Schema Markup Detection Limitation3637**`web_fetch` and `curl` cannot reliably detect structured data / schema markup.**3839Many CMS plugins (AIOSEO, Yoast, RankMath) inject JSON-LD via client-side JavaScript — it won't appear in static HTML or `web_fetch` output (which strips `<script>` tags during conversion).4041**To accurately check for schema markup, use one of these methods:**421. **Browser tool** — render the page and run: `document.querySelectorAll('script[type="application/ld+json"]')`432. **Google Rich Results Test** — https://search.google.com/test/rich-results443. **Screaming Frog export** — if the client provides one, use it (SF renders JavaScript)4546Reporting "no schema found" based solely on `web_fetch` or `curl` leads to false audit findings — these tools can't see JS-injected schema.4748### Priority Order491. **Crawlability & Indexation** (can Google find and index it?)502. **Technical Foundations** (is the site fast and functional?)513. **On-Page Optimization** (is content optimized?)524. **Content Quality** (does it deserve to rank?)535. **Authority & Links** (does it have credibility?)5455---5657## Technical SEO Audit5859### Crawlability6061**Robots.txt**62- Check for unintentional blocks63- Verify important pages allowed64- Check sitemap reference6566**XML Sitemap**67- Exists and accessible68- Submitted to Search Console69- Contains only canonical, indexable URLs70- Updated regularly71- Proper formatting7273**Site Architecture**74- Important pages within 3 clicks of homepage75- Logical hierarchy76- Internal linking structure77- No orphan pages7879**Crawl Budget Issues** (for large sites)80- Parameterized URLs under control81- Faceted navigation handled properly82- Infinite scroll with pagination fallback83- Session IDs not in URLs8485### Indexation8687**Index Status**88- site:domain.com check89- Search Console coverage report90- Compare indexed vs. expected9192**Indexation Issues**93- Noindex tags on important pages94- Canonicals pointing wrong direction95- Redirect chains/loops96- Soft 404s97- Duplicate content without canonicals9899**Canonicalization**100- All pages have canonical tags101- Self-referencing canonicals on unique pages102- HTTP → HTTPS canonicals103- www vs. non-www consistency104- Trailing slash consistency105106### Site Speed & Core Web Vitals107108**Core Web Vitals**109- LCP (Largest Contentful Paint): < 2.5s110- INP (Interaction to Next Paint): < 200ms111- CLS (Cumulative Layout Shift): < 0.1112113**Speed Factors**114- Server response time (TTFB)115- Image optimization116- JavaScript execution117- CSS delivery118- Caching headers119- CDN usage120- Font loading121122**Tools**123- PageSpeed Insights124- WebPageTest125- Chrome DevTools126- Search Console Core Web Vitals report127128### Mobile-Friendliness129130- Responsive design (not separate m. site)131- Tap target sizes132- Viewport configured133- No horizontal scroll134- Same content as desktop135- Mobile-first indexing readiness136137### Security & HTTPS138139- HTTPS across entire site140- Valid SSL certificate141- No mixed content142- HTTP → HTTPS redirects143- HSTS header (bonus)144145### URL Structure146147- Readable, descriptive URLs148- Keywords in URLs where natural149- Consistent structure150- No unnecessary parameters151- Lowercase and hyphen-separated152153---154155## On-Page SEO Audit156157### Title Tags158159**Check for:**160- Unique titles for each page161- Primary keyword near beginning162- 50-60 characters (visible in SERP)163- Compelling and click-worthy164- Brand name placement (end, usually)165166**Common issues:**167- Duplicate titles168- Too long (truncated)169- Too short (wasted opportunity)170- Keyword stuffing171- Missing entirely172173### Meta Descriptions174175**Check for:**176- Unique descriptions per page177- 150-160 characters178- Includes primary keyword179- Clear value proposition180- Call to action181182**Common issues:**183- Duplicate descriptions184- Auto-generated garbage185- Too long/short186- No compelling reason to click187188### Heading Structure189190**Check for:**191- One H1 per page192- H1 contains primary keyword193- Logical hierarchy (H1 → H2 → H3)194- Headings describe content195- Not just for styling196197**Common issues:**198- Multiple H1s199- Skip levels (H1 → H3)200- Headings used for styling only201- No H1 on page202203### Content Optimization204205**Primary Page Content**206- Keyword in first 100 words207- Related keywords naturally used208- Sufficient depth/length for topic209- Answers search intent210- Better than competitors211212**Thin Content Issues**213- Pages with little unique content214- Tag/category pages with no value215- Doorway pages216- Duplicate or near-duplicate content217218### Image Optimization219220**Check for:**221- Descriptive file names222- Alt text on all images223- Alt text describes image224- Compressed file sizes225- Modern formats (WebP)226- Lazy loading implemented227- Responsive images228229### Internal Linking230231**Check for:**232- Important pages well-linked233- Descriptive anchor text234- Logical link relationships235- No broken internal links236- Reasonable link count per page237238**Common issues:**239- Orphan pages (no internal links)240- Over-optimized anchor text241- Important pages buried242- Excessive footer/sidebar links243244### Keyword Targeting245246**Per Page**247- Clear primary keyword target248- Title, H1, URL aligned249- Content satisfies search intent250- Not competing with other pages (cannibalization)251252**Site-Wide**253- Keyword mapping document254- No major gaps in coverage255- No keyword cannibalization256- Logical topical clusters257258---259260## Content Quality Assessment261262### E-E-A-T Signals263264**Experience**265- First-hand experience demonstrated266- Original insights/data267- Real examples and case studies268269**Expertise**270- Author credentials visible271- Accurate, detailed information272- Properly sourced claims273274**Authoritativeness**275- Recognized in the space276- Cited by others277- Industry credentials278279**Trustworthiness**280- Accurate information281- Transparent about business282- Contact information available283- Privacy policy, terms284- Secure site (HTTPS)285286### Content Depth287288- Comprehensive coverage of topic289- Answers follow-up questions290- Better than top-ranking competitors291- Updated and current292293### User Engagement Signals294295- Time on page296- Bounce rate in context297- Pages per session298- Return visits299300---301302## Common Issues by Site Type303304### SaaS/Product Sites305- Product pages lack content depth306- Blog not integrated with product pages307- Missing comparison/alternative pages308- Feature pages thin on content309- No glossary/educational content310311### E-commerce312- Thin category pages313- Duplicate product descriptions314- Missing product schema315- Faceted navigation creating duplicates316- Out-of-stock pages mishandled317318### Content/Blog Sites319- Outdated content not refreshed320- Keyword cannibalization321- No topical clustering322- Poor internal linking323- Missing author pages324325### Local Business326- Inconsistent NAP327- Missing local schema328- No Google Business Profile optimization329- Missing location pages330- No local content331332---333334## Output Format335336### Audit Report Structure337338**Executive Summary**339- Overall health assessment340- Top 3-5 priority issues341- Quick wins identified342343**Technical SEO Findings**344For each issue:345- **Issue**: What's wrong346- **Impact**: SEO impact (High/Medium/Low)347- **Evidence**: How you found it348- **Fix**: Specific recommendation349- **Priority**: 1-5 or High/Medium/Low350351**On-Page SEO Findings**352Same format as above353354**Content Findings**355Same format as above356357**Prioritized Action Plan**3581. Critical fixes (blocking indexation/ranking)3592. High-impact improvements3603. Quick wins (easy, immediate benefit)3614. Long-term recommendations362363---364365## References366367- [AI Writing Detection](references/ai-writing-detection.md): Common AI writing patterns to avoid (em dashes, overused phrases, filler words)368- For AI search optimization (AEO, GEO, LLMO, AI Overviews), consider dedicated AI SEO techniques and best practices369370---371372## Tools Referenced373374**Free Tools**375- Google Search Console (essential)376- Google PageSpeed Insights377- Bing Webmaster Tools378- Rich Results Test (**use this for schema validation — it renders JavaScript**)379- Mobile-Friendly Test380- Schema Validator381382> **Note on schema detection:** `web_fetch` strips `<script>` tags (including JSON-LD) and cannot detect JS-injected schema. Use the browser tool, Rich Results Test, or Screaming Frog instead — they render JavaScript and capture dynamically-injected markup. See the Schema Markup Detection Limitation section above.383384**Paid Tools** (if available)385- Screaming Frog386- Ahrefs / Semrush387- Sitebulb388- ContentKing389390---391392## Task-Specific Questions3933941. What pages/keywords matter most?3952. Do you have Search Console access?3963. Any recent changes or migrations?3974. Who are your top organic competitors?3985. What's your current organic traffic baseline?399