seo-audit

Diagnose technical, on-page, and content SEO issues and produce prioritized audit reports.

Updated Aug 3, 2026
One-click install
npx skills add https://github.com/Yvesdefaria/GymLab --skill seo-audit-yvesdefaria
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: seo-audit
Source: https://github.com/Yvesdefaria/GymLab/tree/main/.opencode/skills/marketingskills/skills/seo-audit
Command: npx skills add https://github.com/Yvesdefaria/GymLab --skill seo-audit-yvesdefaria

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve? Websites lose organic traffic due to hidden crawlability, indexation, speed, and content issues that are hard to diagnose systematically. This Skill provides a structured audit framework that identifies SEO problems and turns them into a prioritized action plan. ## Core Features & Use Cases - Technical SEO Audit: Checks robots.txt, XML sitemaps, canonicalization, Core Web Vitals, mobile-friendliness, HTTPS, and international SEO (hreflang, locale sitemaps, multilingual canonicals). - On-Page & Content Review: Evaluates title tags, meta descriptions, heading structure, keyword targeting, internal linking, E-E-A-T signals, and content depth. - Site-Type Playbooks: Includes tailored diagnostics for SaaS, e-commerce, blogs, local businesses, and multilingual sites, plus migration-drop recovery. - Use Case: After a WordPress-to-Next.js migration causes a 40% traffic drop, run an audit to verify 301 redirect mapping, canonical tags, sitemap submission, and indexation, then receive a prioritized recovery plan. ## Quick Start Ask the assistant to audit your website's SEO by sharing your URL, target keywords, and any recent changes or traffic concerns.

Frequently Asked Questions about seo-audit

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I audit my website for SEO issues?

An SEO audit follows a priority order: crawlability and indexation first, then technical foundations like speed and mobile-friendliness, then on-page optimization, content quality, and authority. Tools like Google Search Console and PageSpeed Insights provide the underlying data.

Why did my organic traffic drop after a site migration?

Traffic drops after migrations usually come from missing 301 redirects, incorrect canonical tags, blocked crawlers in robots.txt, or outdated XML sitemaps. Check Search Console's coverage report for indexation errors and verify every old URL redirects to its new equivalent.

Can I detect schema markup by fetching a page's HTML?

No, static HTML fetching and tools that strip script tags cannot reliably detect schema markup, since many CMS plugins inject JSON-LD via client-side JavaScript. Use a rendering browser, Google's Rich Results Test, or Screaming Frog instead.

What are good Core Web Vitals scores for SEO?

Google's thresholds are LCP under 2.5 seconds, INP under 200 milliseconds, and CLS under 0.1. Pages loading in 5-6 seconds are well above acceptable limits and page speed is a confirmed ranking factor, especially on mobile.

What are the most common hreflang mistakes on multilingual sites?

The most common hreflang errors are missing self-referencing entries, non-reciprocal links between language pairs, invalid codes like en-UK instead of en-GB, and canonical URLs that conflict with the hreflang set. Any of these can cause Google to ignore the annotations entirely.

When should I use an SEO audit versus a schema implementation tool?

Use an SEO audit to diagnose ranking, traffic, crawlability, and content problems across a site. For implementing structured data like FAQ or product schema, use a dedicated schema implementation approach, since auditing and markup generation are distinct tasks.