Seo Audit
- 754 installs
- 787 repo stars
- Updated June 9, 2026
- kostja94/marketing-skills
seo-audit is a Claude Code skill that runs structured technical, on-page, content, and off-page SEO audits for developers who need prioritized fixes to improve search visibility.
About
seo-audit is a marketing-skills workflow (version 1.1.0) that guides end-to-end SEO site health reviews in a fixed order: technical blockers first, then on-page, content, and off-page authority. The skill fires on triggers like "SEO audit," "technical audit," "crawl audit," "indexing audit," and "SEO health," and pairs with seo-strategy for prioritization and google-search-console for GSC data. Developers reach for seo-audit when an existing site underperforms in search, before a relaunch, or when planning a fix backlog from crawl and indexing symptoms rather than guessing at page-level tweaks.
- Guides end-to-end SEO audit across four ordered phases: Technical, On-Page, Content, and Off-Page
- 9 core audit areas including robots-txt, xml-sitemap, canonical-tag, title-tag, schema-markup, internal-links, heading-s
- Enforces principle to fix technical foundation before on-page or content optimization
- Provides explicit crawlability, indexing, and authority checks before suggesting improvements
- Includes hard-gate handoff: completed audit report → invoke seo-strategy for prioritization
Seo Audit by the numbers
- 754 all-time installs (skills.sh)
- +7 installs in the week ending Jul 25, 2026 (Skillselion tracking)
- Ranked #616 of 1,879 Marketing & SEO skills by installs in the Skillselion catalog
- Security screen: MEDIUM risk (skills.sh audit)
- Data as of Jul 31, 2026 (Skillselion catalog sync)
npx skills add https://github.com/kostja94/marketing-skills --skill seo-auditAdd your badge
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| Installs | 754 |
|---|---|
| repo stars | ★ 787 |
| Security audit | 2 / 3 scanners passed |
| Last updated | June 9, 2026 |
| Repository | kostja94/marketing-skills ↗ |
How do you audit technical and on-page SEO issues?
Run structured technical, on-page, content, and off-page SEO audits that surface prioritized fixes for better search visibility.
Who is it for?
Developers or technical marketers auditing an existing website's search health before implementing fixes or handing work to engineering.
Skip if: Developers who only need Google Search Console metrics analysis without a full multi-pillar audit workflow.
When should I use this skill?
User mentions SEO audit, technical audit, site audit, crawl audit, indexing audit, SEO health, or fix SEO issues on an existing site.
What you get
Prioritized SEO fix backlog covering technical, on-page, content, and off-page findings
- Prioritized SEO fix list
- Technical and on-page issue inventory
By the numbers
- Skill version 1.1.0 in marketing-skills repo
- Covers 4 SEO audit pillars: technical, on-page, content, and off-page
Files
Strategies: SEO Audit
Guides end-to-end SEO audit: technical foundation, on-page, content, and off-page. Execute in order—technical blockers prevent indexing; on-page limits rankings; content and off-page build authority. Use when auditing an existing site or planning fixes.
When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Audit Order
| Phase | Focus | Skills |
|---|---|---|
| 1. Technical | Crawl, index, sitemap | robots-txt, xml-sitemap, canonical-tag, indexing, site-crawlability |
| 2. On-Page | Metadata, structure, schema | title-tag, meta-description, page-metadata, schema-markup, internal-links, heading-structure |
| 3. Content | Gaps, intent, optimization | keyword-research, content-strategy, content-optimization |
| 4. Off-Page | Backlinks, authority | link-building, backlink-analysis |
Principle: Fix foundation before optimizing pages. See seo-strategy for workflow and prioritization.
Technical Checklist
| Item | Check | Skill |
|---|---|---|
| robots.txt | Syntax; not blocking important pages | robots-txt |
| Sitemap | Submitted to GSC; indexable pages only; ≤50K URLs per sitemap | xml-sitemap |
| HTTPS | Sitewide; valid certificate | canonical-tag |
| 404/5xx | Proper status codes; fix or redirect | site-crawlability |
| noindex | No accidental noindex on key pages | indexing |
| Canonical | Correct; no conflicts | canonical-tag |
| Core Web Vitals | LCP ≤2.5s, INP ≤200ms, CLS <0.1 | core-web-vitals |
| Mobile | Mobile-first; content parity; no intrusive interstitials | mobile-friendly |
| Crawlability | Redirect chains, broken links, orphan pages | site-crawlability |
On-Page Checklist
| Item | Check | Skill |
|---|---|---|
| Title | Unique; 50–60 chars; keyword in first 10 words | title-tag |
| Meta description | 150–160 chars; CTA | meta-description |
| Headings | One H1; H1→H2→H3 hierarchy | heading-structure |
| Images | Alt text; no decorative alt for decorative images | image-optimization |
| Schema | Valid; Rich Results Test | schema-markup |
| Internal links | From strong pages; descriptive anchors | internal-links |
| Duplicate content | Canonical; consolidate or differentiate | canonical-tag |
Content & Off-Page
| Phase | Focus | Skill |
|---|---|---|
| Content gap | Missing topics vs competitors | content-strategy, competitor-research |
| Intent match | Content matches search intent | content-optimization |
| Backlinks | Toxic links; link gap vs competitors | backlink-analysis, link-building |
Frequency
| Cadence | Use |
|---|---|
| Full audit | Quarterly |
| Check-ins | Monthly (GSC, indexing, Core Web Vitals) |
Output Format
- Phase 1–4 findings (technical → on-page → content → off-page)
- Priority list (P0 blocker → P1 core → P2 important)
- Skill mapping (which skill for each fix)
- Timeline (immediate vs short-term vs ongoing)
Related Skills
- seo-strategy: Workflow order, prioritization, when to invest in SEO
- google-search-console: Performance, indexing, Core Web Vitals data
- site-crawlability: Redirect chains, broken links, crawl budget
- indexing: Indexing issues, noindex, Search Console
- core-web-vitals: LCP, INP, CLS optimization
Related skills
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Pick seo-audit for a full prioritized site health review; use companion skills for GSC analytics or long-term organic strategy.
FAQ
What does the seo-audit skill check?
seo-audit checks four pillars in order: technical foundation, on-page elements, content quality, and off-page authority. Technical blockers that prevent indexing are addressed first, then on-page limits, then content and off-page signals that build authority.
When should developers use seo-audit vs google-search-console?
seo-audit runs a full structured site audit across technical, on-page, content, and off-page areas. The google-search-console skill in the same repo is for analyzing GSC performance data, not replacing a multi-pillar audit workflow.
Is Seo Audit safe to install?
skills.sh reports 2 of 3 security scanners passed. Review the Security Audits panel on this page before installing in production.