technical-seo-checker

name	technical-seo-checker
description	Technical SEO audit and site health checker: Core Web Vitals, crawlability, indexing, mobile-friendliness, page speed, site architecture, and redirect chains. Part of a 20-skill SEO & GEO workflow suite. 技术SEO/网站速度/SEO审计/谷歌收录/网站优化
version	6.0.0
license	Apache-2.0
compatibility	Claude Code ≥1.0, skills.sh marketplace, ClawHub marketplace, Vercel Labs skills ecosystem. No system packages required. Optional: MCP network access for SEO tool integrations.
homepage	https://github.com/aaron-he-zhu/seo-geo-claude-skills
when_to_use	Use when checking technical SEO health: site speed, Core Web Vitals, indexing, crawlability, robots.txt, sitemaps, or canonical tags.
argument-hint	<URL or domain>
allowed-tools	WebFetch
metadata	{"author":"aaron-he-zhu","version":"6.0.0","geo-relevance":"low","tags":["seo","technical-seo","core-web-vitals","page-speed","crawlability","indexability","mobile-seo","site-health","lcp","cls","inp","robots-txt","xml-sitemap","技术SEO","网站速度","テクニカルSEO","기술SEO","seo-tecnico"],"triggers":["technical SEO audit","check page speed","Core Web Vitals","crawl issues","site indexing problems","canonical tag issues","duplicate content","mobile-friendly check","site speed","site health check","my site is slow","Google can't crawl my site","Google can't find my pages","mobile issues","indexing problems","why is my site slow","how do I fix my page speed","why is my site not indexed","how to improve Core Web Vitals","why did my site disappear from Google","PageSpeed Insights alternative","GTmetrix alternative","Sitebulb alternative","技术SEO检查","网站速度优化","核心网页指标","爬虫问题","索引问题","网站收录","sitemap提交","robots设置","网站加载太慢","[Truncated]"]}

Technical SEO Checker

Diagnose the infrastructure issues silently tanking your rankings — this skill audits Core Web Vitals, crawlability, indexing blockers, mobile-friendliness, redirect chains, and site architecture so search engines can fully access and rank your content.

How to start: Perform a technical SEO audit for [URL/domain] or Check Core Web Vitals for [URL]

System role: Optimization layer skill. It turns weak pages, structures, and technical issues into prioritized repair work.

SEO & GEO Skills Library · 20 skills for SEO + GEO · ClawHub · skills.sh

When This Must Trigger

Use this when the conversation involves any of these situations — even if the user does not use SEO terminology:

Use this whenever the task needs a diagnosis or repair plan that should feed directly into remediation work, not just a one-time opinion.

• Launching a new website
• Diagnosing ranking drops
• Pre-migration SEO audits
• Regular technical health checks
• Identifying crawl and index issues
• Improving site performance
• Fixing Core Web Vitals issues

Technical SEO Coverage

This skill audits the infrastructure layer that determines whether search engines can crawl, index, and rank your pages: robots.txt and XML sitemap correctness, canonical tags, redirect chains, and crawl budget management.

Core Web Vitals (LCP, CLS, INP) are measured as direct ranking factors alongside page speed and mobile-first indexing compliance. Structured data markup is validated for rich results, and hreflang is checked for international sites. All findings are ranked by SEO impact so teams can prioritize fixes that unblock organic traffic growth immediately.

What This Skill Does

1. Crawlability Audit: Checks robots.txt, sitemaps, crawl issues
2. Indexability Review: Analyzes index status and blockers
3. Site Speed Analysis: Evaluates Core Web Vitals and performance
4. Mobile-Friendliness: Checks mobile optimization
5. Security Check: Reviews HTTPS and security headers
6. Structured Data Audit: Validates schema markup
7. URL Structure Analysis: Reviews URL patterns and redirects