seo-technical

Audits websites across nine technical SEO categories including crawlability, Core Web Vitals, and structured data.

Updated Mar 26, 2026
One-click install
npx skills add https://github.com/LGJ-Jonathan/Jonathan_Global_Claude_Skills --skill seo-technical-lgj-jonathan
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: seo-technical
Source: https://github.com/LGJ-Jonathan/Jonathan_Global_Claude_Skills/tree/main/claude-seo/skills/seo-technical
Command: npx skills add https://github.com/LGJ-Jonathan/Jonathan_Global_Claude_Skills --skill seo-technical-lgj-jonathan

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Diagnosing technical SEO issues requires checking dozens of signals across crawlability, indexability, security, performance, and rendering, which is slow and error-prone when done manually. This Skill runs a structured audit across nine categories and produces a prioritized issue list with a technical score. ## Core Features & Use Cases - Nine-Category Audit: Covers crawlability, indexability, security headers, URL structure, mobile optimization, Core Web Vitals (LCP, INP, CLS), structured data, JavaScript rendering, and IndexNow support. - AI Crawler Management: Evaluates robots.txt rules for AI crawlers like GPTBot, ClaudeBot, and Google-Extended, with guidance on blocking training crawlers without losing search visibility. - Prioritized Output: Produces a 0-100 technical score, per-category pass/warn/fail status, and issues grouped into critical, high, medium, and low priority tiers. - Use Case: A site owner notices declining organic traffic and asks for a technical SEO audit of their domain; the Skill checks robots.txt, canonical tags, HTTPS configuration, Core Web Vitals thresholds, and JavaScript rendering risks, then returns a ranked fix list. ## Quick Start Run a technical SEO audit on https://example.com and list the critical issues first.

Frequently Asked Questions about seo-technical

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

FAQPage Schema
How do I run a technical SEO audit on my website?

Provide the target URL and the audit checks nine categories: robots.txt and sitemaps, canonical and noindex tags, HTTPS and security headers, URL structure, mobile readiness, Core Web Vitals, structured data, JavaScript rendering, and IndexNow. Results include a score out of 100 and prioritized fixes.

What are the Core Web Vitals thresholds for SEO?

The targets are LCP under 2.5 seconds, INP under 200 milliseconds, and CLS under 0.1, measured at the 75th percentile of real user data. INP replaced FID in March 2024, and FID was removed from Chrome tools in September 2024.

Does blocking GPTBot in robots.txt stop ChatGPT from citing my site?

No. Blocking GPTBot prevents OpenAI model training, but ChatGPT can still cite your content through real-time browsing via the ChatGPT-User crawler. Similarly, blocking Google-Extended affects Gemini training but not Google Search indexing.

Can JavaScript-injected canonical tags cause indexing problems?

Yes. If the canonical tag in raw HTML differs from one injected by JavaScript, Google may use either one. Google also does not render JavaScript on non-200 pages, so critical SEO elements should be served in the initial server-rendered HTML.

What happens if Core Web Vitals data is unavailable for my site?

CrUX field data is often unavailable for low-traffic sites. In that case the audit notes the gap and suggests using Lighthouse lab data as a proxy until sufficient real-user traffic accumulates.