Claude SEO: The Claude Code Plugin for Full Website Audits

What is the Claude SEO plugin?

agricidaniel-claude-seo (15,090 GitHub stars) is an SEO analysis plugin for Claude Code, filed under Flowy's marketing category. Flowy indexes 49 components from it, 18 agents and 31 skills, covering technical SEO, content quality, structured data, local SEO, e-commerce, backlinks, and AI search visibility.

Three skills overlap by design as entry points. seo is general purpose: point it at a site or a page and it runs a full audit or a page-level check itself, touching technical SEO, schema, content, images, sitemaps, and AI search readiness. seo-audit is the heavier, whole-site version: it crawls up to 500 pages, detects the business type, and hands work to specialist agents in parallel. seo-page is the dedicated single-URL version, for on-page elements, content, meta tags, schema, images, and performance on one page only. seo-plan sits ahead of all three, building an industry-specific roadmap and content strategy before any auditing starts.

How does the full-site audit pick its specialists?

seo-audit delegates to up to 15 specialist agents per run, 8 that always run plus 7 spawned only when they apply. seo-ecommerce is one example, spawned only when an e-commerce site is detected; seo-drift is another, running only once a baseline already exists for that URL, then diffing later crawls against it and reporting regressions with a severity rating.

Two agents run with no matching skill: seo-performance measures Core Web Vitals and page load, and seo-visual captures screenshots and checks mobile rendering and above-the-fold content with Playwright. seo-flow reads a target URL and applies stage-specific prompts from a 41-prompt library under CC BY 4.0, and seo-sxo reads search results backwards to find page-type mismatches and explain why an already well-optimized page still fails to rank.

What does it check on the page itself?

seo-technical audits crawlability, indexability, security, URL structure, mobile, Core Web Vitals, structured data, JavaScript rendering, and the IndexNow protocol in one pass. seo-content reviews E-E-A-T signals, readability, content depth, thin content, and AI citation readiness; seo-content-brief goes the other way, generating per-section word counts, competitor scoring, and keyword density guidance for a new or existing page. seo-schema detects, validates, and generates JSON-LD structured data. seo-images checks alt text, file sizes, formats, lazy loading, and CLS, plus WebP and AVIF conversion. seo-sitemap validates or generates XML sitemaps and enforces quality gates on location pages, and seo-hreflang catches wrong language and region codes on multi-region sites.

Does it cover AI search results, not just Google?

seo-geo checks AI crawler access, brand mention signals, and passage-level citability for Google AI Overviews, ChatGPT, Perplexity, and Bing Copilot, and notes that an optional llms.txt file is ignored by Google Search itself. seo-bing covers the other engine directly, since Microsoft Copilot's citations are fed by the Bing index, and adds IndexNow submission on top of Bing Webmaster Tools data. seo-seranking measures AI share-of-voice across ChatGPT, Gemini, Perplexity, AI Overviews, and AI Mode in one query, and seo-profound tracks brand citation rates over time, built to pair with it for wider coverage.

What about local businesses, e-commerce, and backlinks?

seo-local and seo-maps cover Google Business Profile signals, NAP consistency, review signals across Google, Tripadvisor, and Trustpilot, geo-grid rank tracking, and competitor radius mapping, for brick-and-mortar, service-area, and multi-location businesses. seo-ecommerce validates product schema, checks Google Shopping and Amazon marketplace visibility, and flags pricing gaps. seo-backlinks merges free sources, Moz, Bing Webmaster Tools, and Common Crawl, with confidence-weighted scoring, and seo-ahrefs pairs with it as a second, paid source. seo-dataforseo pulls SERP, keyword, and competitor data through its own service; seo-google pulls real field data from Search Console, PageSpeed Insights, CrUX, the Indexing API, and GA4. seo-firecrawl handles full-site crawling, and seo-unlighthouse runs the free, MIT-licensed Unlighthouse CLI locally instead of calling PageSpeed on every URL.

Where does content strategy fit, and who is this for?

seo-cluster groups keywords by actual search-result overlap rather than text similarity, then designs hub-and-spoke content clusters with internal link matrices. seo-competitor-pages builds the comparison and alternatives pages that sit next to that content, and seo-programmatic plans pages generated at scale, with safeguards against thin content and index bloat. seo-image-gen's skill generates the OG and social images those pages need through Gemini, while its paired agent only audits what exists and plans a brief; it never generates an image itself.

This is for anyone running SEO work through Claude Code who would rather call one plugin than switch tools for each part of the job. Install from the listing page linked at the top of this guide.