technical-seo-checker_skill

Overview

This skill performs comprehensive technical SEO audits to find issues that prevent search engines from crawling, indexing, and properly ranking your site. It covers site speed, crawlability, indexability, mobile-friendliness, security, structured data, URL structure, and international SEO. Use it to get prioritized, actionable fixes and a clear technical health score.

How this skill works

The skill inspects robots.txt, sitemap.xml, crawl errors, index status, canonical and noindex signals, and redirect chains to assess crawlability and indexability. It pulls Core Web Vitals and performance metrics, checks mobile responsiveness and security headers, validates schema markup, and reviews URL patterns and hreflang where applicable. Outputs include diagnostic tables, severity labels, and prioritized remediation steps.

When to use it

• Before launching a new site or after a major redesign
• When diagnosing sudden ranking drops or indexation issues
• As a pre-migration checklist (domain or protocol changes)
• For regular technical health checks and monitoring
• To fix Core Web Vitals, mobile or crawlability problems

Best practices

• Provide the site URL and any PageSpeed or Search Console reports for the most accurate audit
• Run full-site crawls for domain-wide problems and single-page checks for focused performance work
• Prioritize critical indexability and security issues before performance tweaks
• Document automated vs. manual findings so remediation owners know data sources
• Track fixes and re-audit the affected pages to confirm improvements

Example use cases

• Perform a full technical SEO audit for example.com before launching marketing campaigns
• Check Core Web Vitals and performance bottlenecks for a slow landing page
• Audit robots.txt and sitemap after migrating content to a new domain
• Validate hreflang and international targeting for a multi-region site
• Identify missing or invalid structured data for product and article pages