SEO Audit
AnthropicOfficialPublished by Anthropic
- Skill
- Content generator
- Business and productivity
- Apache-2.0
- No issues found
AutoGineer summary
Written by AutoGineer from the skill’s own files, not by the author
The seo-audit skill provides a structured framework for evaluating a website's search engine performance. It performs deep dives into keyword landscapes, on-page optimization, content strategy, and technical infrastructure. By comparing a domain against competitors and identifying specific content gaps, the skill generates a prioritized action plan that categorizes tasks into immediate quick wins and long-term strategic investments.
What it does
- Conducts keyword research to identify high-intent opportunities and search volume trends.
- Performs on-page SEO audits covering meta tags, H-tag hierarchy, and internal linking.
- Executes content gap analysis to find topics and formats currently owned by competitors.
- Checks technical SEO foundations including page speed, crawlability, and structured data.
- Benchmarks domain performance against specific competitors across multiple SEO dimensions.
- Produces a prioritized action plan split into quick wins and strategic quarterly investments.
When to use it
- When you need to assess the overall SEO health of a website.
- When identifying new keyword opportunities to improve organic search rankings.
- When you want to discover content topics that your competitors are ranking for but you are not.
- When you need a clear, prioritized list of technical and content-related SEO tasks.
- When benchmarking your site's performance against direct industry competitors.
Advantages
- Provides actionable, prioritized recommendations rather than just raw data.
- Offers a holistic view covering technical, content, and competitive aspects of SEO.
- Helps distinguish between immediate fixes and long-term strategic growth initiatives.
- Supports various audit types ranging from full site reviews to specific competitor comparisons.
Usage examples
- “/seo-audit example.com”
- The agent performs a full site audit of example.com, providing an executive summary, keyword opportunities, on-page issues, and a prioritized action plan.
- “Run a content gap analysis for my site against competitor-a.com and competitor-b.com”
- The agent identifies topics and keywords that competitor-a.com and competitor-b.com rank for, which are currently missing from your site, and suggests content formats to fill those gaps.
- “Perform a technical SEO check for my domain”
- The agent evaluates your site's crawlability, page speed, structured data, and mobile-friendliness, reporting any critical or high-severity technical issues.
- “Do keyword research for the topic of sustainable fashion”
- The agent researches the keyword landscape for sustainable fashion, identifying primary and secondary keywords, search volume signals, and long-tail opportunities.
Install
Download the skill as a ZIP:
https://autogineer.com/agent-skills/anthropics/seo-audit/downloadUnzip it into the cross-client skills folder of your project:
mkdir -p .agents/skills && unzip seo-audit.zip -d .agents/skills
Documentation by Anthropic
/seo-audit
If you see unfamiliar placeholders or need to check which tools are connected, see CONNECTORS.md.
Audit a website's SEO health, research keyword opportunities, identify content gaps, and benchmark against competitors. Produces a prioritized action plan a marketer can execute immediately.
Trigger
User runs /seo-audit or asks for an SEO audit, keyword research, content gap analysis, technical SEO check, or competitor SEO comparison.
Inputs
Gather the following from the user. If not provided, ask before proceeding:
URL or domain — the site to audit, or a topic/keyword if running in keyword research mode
Audit type — one of:
Full site audit — end-to-end SEO review covering all sections below
Keyword research — identify keyword opportunities for a topic or domain
Content gap analysis — find topics competitors rank for that you don't
Technical SEO check — crawlability, speed, structured data, and infrastructure issues
Competitor SEO comparison — head-to-head SEO benchmarking against specific competitors
If not specified, default to full site audit.
Target keywords or topics (optional) — specific keywords the user is already targeting or wants to rank for
Competitors (optional) — domains or companies to compare against. If not provided and the audit type requires competitor data, use web search to identify 2-3 likely competitors based on the user's domain and keyword space.
Process
1. Keyword Research
Research keywords related to the user's domain, topic, or target keywords.
If ~~SEO tools are connected:
Pull keyword data, search volume, keyword difficulty scores, and ranking positions automatically
Identify keywords the site currently ranks for and where it's gaining or losing ground
If ~~product analytics are connected:
Cross-reference keyword targets with actual organic traffic data to validate which keywords are driving visits and conversions
If tools are not connected:
Use web search to research the keyword landscape
Note: "For more precise volume and difficulty data, connect an SEO tool like Ahrefs or Semrush via MCP. The audit will auto-populate with ranking data."
For each keyword opportunity, assess:
Primary keywords — high-intent terms directly tied to the user's product or service
Secondary keywords — supporting terms and variations
Search volume signals — relative demand (high, medium, low) based on available data
Keyword difficulty — how competitive the term is (easy, moderate, hard)
Long-tail opportunities — specific, lower-competition phrases with clear intent
Question-based keywords — "how to", "what is", "why does" queries that mirror People Also Ask results
Intent classification — informational, navigational, commercial, or transactional
2. On-Page SEO Audit
For each key page (homepage, top landing pages, recent blog posts), evaluate:
Title tags — present, unique, within 50-60 characters, includes target keyword
Meta descriptions — present, compelling, within 150-160 characters, includes a call to action
H1 tags — exactly one per page, includes primary keyword
H2/H3 structure — logical hierarchy, uses secondary keywords where natural
Keyword usage — primary keyword appears in the first 100 words, used naturally throughout, not over-stuffed
Internal linking — pages link to related content, orphan pages identified, anchor text is descriptive
Image alt text — all images have descriptive alt attributes, keywords included where relevant
URL structure — clean, readable, includes keywords, no excessive parameters or depth
3. Content Gap Analysis
Identify what's missing from the user's content strategy:
Competitor topic coverage — topics and keywords competitors rank for that the user's site does not cover
Content freshness — pages that haven't been updated in 12+ months and may be losing rankings
Thin content — pages with insufficient depth to rank (under 300 words for informational queries, lacking substance)
Missing content types — formats competitors use that the user doesn't (guides, comparison pages, glossaries, tools, templates)
Funnel gaps — missing content at specific buyer journey stages (awareness, consideration, decision)
Topic clusters — opportunities to build pillar pages with supporting content
4. Technical SEO Checklist
Evaluate technical foundations that affect crawlability and rankings:
Page speed — identify slow-loading pages and likely causes (large images, render-blocking scripts, excessive redirects)
Mobile-friendliness — responsive design, tap targets, font sizes, viewport configuration
Structured data — opportunities for schema markup (FAQ, HowTo, Product, Article, Organization, Breadcrumb)
Crawlability — robots.txt configuration, XML sitemap presence and accuracy, canonical tags, noindex/nofollow usage
Broken links — internal and external 404s, redirect chains
HTTPS — secure connection, mixed content issues
Core Web Vitals signals — LCP, FID/INP, CLS indicators based on observable page behavior
Indexation — pages that should be indexed but may not be, duplicate content risks
5. Competitor SEO Comparison
For each competitor, compare:
Keyword overlap — keywords both sites rank for, and where each site ranks higher
Keyword gaps — terms the competitor ranks for that the user does not
Domain authority signals — relative site strength based on backlink profiles, referring domains, and content depth
Content depth — average content length, topic coverage breadth, publishing frequency
Backlink profile observations — types of sites linking to competitors, link-worthy content they've produced
SERP feature ownership — which competitor appears in featured snippets, People Also Ask, image packs, or knowledge panels
Technical advantages — site speed differences, mobile experience, structured data usage
Output
Executive Summary
Open with a 3-5 sentence summary of overall SEO health. Highlight:
The site's biggest strength
The top 3 priorities that will have the most impact
An overall assessment: strong foundation, needs work, or critical issues
Keyword Opportunity Table
| Keyword | Est. Difficulty | Opportunity Score | Current Ranking | Intent | Recommended Content Type |
|---|
Opportunity score: high, medium, or low — based on the combination of search demand, difficulty, and relevance to the user's business.
Include 15-25 keyword opportunities, sorted by opportunity score.
On-Page Issues Table
| Page | Issue | Severity | Recommended Fix |
|---|
Severity levels:
Critical — directly hurting rankings or preventing indexation
High — significant impact on SEO performance
Medium — best practice violation, moderate impact
Low — minor optimization opportunity
Content Gap Recommendations
For each content gap identified, provide:
Topic or keyword to target
Why it matters — search demand, competitor coverage, funnel stage
Recommended format — blog post, landing page, guide, comparison page, etc.
Priority — high, medium, or low
Estimated effort — quick win (1-2 hours), moderate (half day), substantial (multi-day)
Technical SEO Checklist
| Check | Status | Details |
|---|
Status: Pass, Fail, or Warning.
Competitor Comparison Summary
| Dimension | Your Site | Competitor A | Competitor B | Winner |
|---|
Include rows for: keyword count, content depth, publishing frequency, backlink signals, technical score, SERP feature presence.
Prioritized Action Plan
Split recommendations into two categories:
Quick Wins (do this week):
Actions that take under 2 hours and have immediate impact
Examples: fix title tags, add meta descriptions, fix broken links, add alt text
Strategic Investments (plan for this quarter):
Actions that require more effort but drive long-term growth
Examples: build a topic cluster, create a pillar page, launch a link-building campaign, overhaul site structure
For each action item, include:
What to do (specific and concrete)
Expected impact (high, medium, low)
Effort estimate
Dependencies (if any)
Follow-Up
After presenting the audit, ask:
"Would you like me to:
Draft content briefs for the top keyword opportunities?
Create optimized title tags and meta descriptions for your key pages?
Build a content calendar based on the gap analysis?
Dive deeper into any specific section of the audit?
Run this same analysis for a different competitor or domain?"
Files
- ATTRIBUTION.mdAdded by AutoGineer918 B
- LICENSELicence file added by AutoGineer11.1 KiB
- SKILL.md9.3 KiB
SKILL.md
/seo-audit
If you see unfamiliar placeholders or need to check which tools are connected, see CONNECTORS.md.
Audit a website's SEO health, research keyword opportunities, identify content gaps, and benchmark against competitors. Produces a prioritized action plan a marketer can execute immediately.
Trigger
User runs /seo-audit or asks for an SEO audit, keyword research, content gap analysis, technical SEO check, or competitor SEO comparison.
Inputs
Gather the following from the user. If not provided, ask before proceeding:
URL or domain — the site to audit, or a topic/keyword if running in keyword research mode
Audit type — one of:
Full site audit — end-to-end SEO review covering all sections below
Keyword research — identify keyword opportunities for a topic or domain
Content gap analysis — find topics competitors rank for that you don't
Technical SEO check — crawlability, speed, structured data, and infrastructure issues
Competitor SEO comparison — head-to-head SEO benchmarking against specific competitors
If not specified, default to full site audit.
Target keywords or topics (optional) — specific keywords the user is already targeting or wants to rank for
Competitors (optional) — domains or companies to compare against. If not provided and the audit type requires competitor data, use web search to identify 2-3 likely competitors based on the user's domain and keyword space.
Process
1. Keyword Research
Research keywords related to the user's domain, topic, or target keywords.
If ~~SEO tools are connected:
Pull keyword data, search volume, keyword difficulty scores, and ranking positions automatically
Identify keywords the site currently ranks for and where it's gaining or losing ground
If ~~product analytics are connected:
Cross-reference keyword targets with actual organic traffic data to validate which keywords are driving visits and conversions
If tools are not connected:
Use web search to research the keyword landscape
Note: "For more precise volume and difficulty data, connect an SEO tool like Ahrefs or Semrush via MCP. The audit will auto-populate with ranking data."
For each keyword opportunity, assess:
Primary keywords — high-intent terms directly tied to the user's product or service
Secondary keywords — supporting terms and variations
Search volume signals — relative demand (high, medium, low) based on available data
Keyword difficulty — how competitive the term is (easy, moderate, hard)
Long-tail opportunities — specific, lower-competition phrases with clear intent
Question-based keywords — "how to", "what is", "why does" queries that mirror People Also Ask results
Intent classification — informational, navigational, commercial, or transactional
2. On-Page SEO Audit
For each key page (homepage, top landing pages, recent blog posts), evaluate:
Title tags — present, unique, within 50-60 characters, includes target keyword
Meta descriptions — present, compelling, within 150-160 characters, includes a call to action
H1 tags — exactly one per page, includes primary keyword
H2/H3 structure — logical hierarchy, uses secondary keywords where natural
Keyword usage — primary keyword appears in the first 100 words, used naturally throughout, not over-stuffed
Internal linking — pages link to related content, orphan pages identified, anchor text is descriptive
Image alt text — all images have descriptive alt attributes, keywords included where relevant
URL structure — clean, readable, includes keywords, no excessive parameters or depth
3. Content Gap Analysis
Identify what's missing from the user's content strategy:
Competitor topic coverage — topics and keywords competitors rank for that the user's site does not cover
Content freshness — pages that haven't been updated in 12+ months and may be losing rankings
Thin content — pages with insufficient depth to rank (under 300 words for informational queries, lacking substance)
Missing content types — formats competitors use that the user doesn't (guides, comparison pages, glossaries, tools, templates)
Funnel gaps — missing content at specific buyer journey stages (awareness, consideration, decision)
Topic clusters — opportunities to build pillar pages with supporting content
4. Technical SEO Checklist
Evaluate technical foundations that affect crawlability and rankings:
Page speed — identify slow-loading pages and likely causes (large images, render-blocking scripts, excessive redirects)
Mobile-friendliness — responsive design, tap targets, font sizes, viewport configuration
Structured data — opportunities for schema markup (FAQ, HowTo, Product, Article, Organization, Breadcrumb)
Crawlability — robots.txt configuration, XML sitemap presence and accuracy, canonical tags, noindex/nofollow usage
Broken links — internal and external 404s, redirect chains
HTTPS — secure connection, mixed content issues
Core Web Vitals signals — LCP, FID/INP, CLS indicators based on observable page behavior
Indexation — pages that should be indexed but may not be, duplicate content risks
5. Competitor SEO Comparison
For each competitor, compare:
Keyword overlap — keywords both sites rank for, and where each site ranks higher
Keyword gaps — terms the competitor ranks for that the user does not
Domain authority signals — relative site strength based on backlink profiles, referring domains, and content depth
Content depth — average content length, topic coverage breadth, publishing frequency
Backlink profile observations — types of sites linking to competitors, link-worthy content they've produced
SERP feature ownership — which competitor appears in featured snippets, People Also Ask, image packs, or knowledge panels
Technical advantages — site speed differences, mobile experience, structured data usage
Output
Executive Summary
Open with a 3-5 sentence summary of overall SEO health. Highlight:
The site's biggest strength
The top 3 priorities that will have the most impact
An overall assessment: strong foundation, needs work, or critical issues
Keyword Opportunity Table
| Keyword | Est. Difficulty | Opportunity Score | Current Ranking | Intent | Recommended Content Type |
|---|
Opportunity score: high, medium, or low — based on the combination of search demand, difficulty, and relevance to the user's business.
Include 15-25 keyword opportunities, sorted by opportunity score.
On-Page Issues Table
| Page | Issue | Severity | Recommended Fix |
|---|
Severity levels:
Critical — directly hurting rankings or preventing indexation
High — significant impact on SEO performance
Medium — best practice violation, moderate impact
Low — minor optimization opportunity
Content Gap Recommendations
For each content gap identified, provide:
Topic or keyword to target
Why it matters — search demand, competitor coverage, funnel stage
Recommended format — blog post, landing page, guide, comparison page, etc.
Priority — high, medium, or low
Estimated effort — quick win (1-2 hours), moderate (half day), substantial (multi-day)
Technical SEO Checklist
| Check | Status | Details |
|---|
Status: Pass, Fail, or Warning.
Competitor Comparison Summary
| Dimension | Your Site | Competitor A | Competitor B | Winner |
|---|
Include rows for: keyword count, content depth, publishing frequency, backlink signals, technical score, SERP feature presence.
Prioritized Action Plan
Split recommendations into two categories:
Quick Wins (do this week):
Actions that take under 2 hours and have immediate impact
Examples: fix title tags, add meta descriptions, fix broken links, add alt text
Strategic Investments (plan for this quarter):
Actions that require more effort but drive long-term growth
Examples: build a topic cluster, create a pillar page, launch a link-building campaign, overhaul site structure
For each action item, include:
What to do (specific and concrete)
Expected impact (high, medium, low)
Effort estimate
Dependencies (if any)
Follow-Up
After presenting the audit, ask:
"Would you like me to:
Draft content briefs for the top keyword opportunities?
Create optimized title tags and meta descriptions for your key pages?
Build a content calendar based on the gap analysis?
Dive deeper into any specific section of the audit?
Run this same analysis for a different competitor or domain?"
Requirements and compatibility
Written for: Claude Code, Claude apps
Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta
“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.
Needs: Claude Code frontmatter
Security
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Attribution and licence
- Published by
- Anthropic
- Publisher
- Anthropic (Official)
- Source
- anthropics/knowledge-work-plugins · marketing/skills/seo-audit · commit e050c2e
- Licence
- Apache License 2.0 (redistribution allowed)
- LICENSE (added by AutoGineer from marketing/LICENSE)
- ATTRIBUTION.md (written by AutoGineer)
- Synced
AutoGineer is not affiliated with or endorsed by Anthropic or Anthropic.
Download ZIP
The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download seo-audit.zip