# SEO Analyzer

> Audit any webpage or domain for on-page and technical SEO issues. Analyzes metadata, heading structure, Core Web Vitals, backlink signals, keyword density, and generates a prioritized fix report.

- Skill: `greenmamba29/seo-analyzer` (Agent Skill)
- Install (CLI): `npx skillmds@latest add greenmamba29/seo-analyzer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/greenmamba29/seo-analyzer/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Marketing & Growth
- License: MIT
- Author: Greenmamba29 (https://skillmd.com/u/greenmamba29)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/greenmamba29/seo-analyzer

---


# SEO Analyzer

## Overview

Perform comprehensive SEO audits on URLs or entire domains, identifying on-page deficiencies, technical issues, and content gaps with prioritized recommendations.

---

## When to Use

- Auditing a new website before launch
- Diagnosing a traffic drop after a Google update
- Benchmarking competitor pages
- Preparing keyword optimization reports for content teams
- Monthly SEO health monitoring

---

## Instructions

1. Accept input: target URL or domain, target keywords (optional), competitor URLs (optional).
2. Crawl the page(s) and extract: title, meta description, H1-H6 hierarchy, image alt tags, canonical tags, robots directives.
3. Check technical signals: page speed, mobile-friendliness, HTTPS, structured data, sitemap presence.
4. Analyze keyword usage and density against target terms.
5. Pull Core Web Vitals (LCP, FID, CLS) via PageSpeed Insights API.
6. Identify issues: missing meta, duplicate titles, broken links, thin content, slow assets.
7. Score the page from 0-100 across categories: Technical, On-Page, Content, UX.
8. Return a ranked list of issues with severity (Critical/High/Medium/Low) and fix instructions.

---

## Environment

```
PAGESPEED_API_KEY=your_google_pagespeed_api_key
SEMRUSH_API_KEY=your_semrush_api_key_optional
TARGET_URL=https://yourdomain.com
CRAWL_DEPTH=3
```

---

## Examples

**Input:**
```
url: https://lithiumbuy.com
keywords: [lithium battery buyers, battery recycling marketplace]
competitors: [batterychain.com, recyclibat.com]
```

**Output:**
```
SEO Score: 74/100
Critical: Missing H1 on /about (1 issue)
High: Meta descriptions >160 chars on 5 pages
Medium: LCP 3.8s on homepage (target <2.5s)
Low: 12 images missing alt tags
Top keyword gap: 'lithium recycling B2B' - not ranking
```