Geo Checker — AI skill for Claude Code

GEO Checker

**Status (2026-09-11):** Live product at [gc.ranran.tw](https://gc.ranran.tw). This repo tracks that service. File issues for live bugs; this is not an OSS growth project.

SEO helps content get found. GEO ensures content gets interpreted correctly.

 


**GEO (Generative Engine Optimization) Checker** analyzes how well your content is understood by AI search engines like ChatGPT, Claude, Perplexity, and Google AI Overviews.

**Live demo: [gc.ranran.tw](https://gc.ranran.tw)**

Why GEO matters

SEO optimizes for search engine *ranking*. But when ChatGPT or Perplexity answers a question, they don't rank pages — they **interpret, summarize, and cite** content. If your page isn't structured for AI comprehension, you're invisible to the next generation of search.

GEO Checker tells you exactly what to fix.

Features

Core Analysis

• 26 AI Crawler Detection — GPTBot, ClaudeBot, PerplexityBot, Google-Extended, Google-CloudVertexBot, Bingbot, Meta AI, and more
• GEO Signal Analysis — E-E-A-T authority, content freshness, image alt text quality, llms.txt, Schema.org structured data
• AI Citation Simulator — Preview how AI engines would summarize and cite your content
• GEO Score Card — Shareable visual score card (1200x630 OG image)
• Compare Mode — Side-by-side analysis of multiple pages
• Brand Visibility Audit — CJK-first prompt pack, competitor mention-rate analysis, and Markdown action report for AI answer engines
• Action Toolkit — Fix checklist, robots.txt generator, Schema.org generator
• Multilingual — Full English and Traditional Chinese support

v4.0 — Persistence, Trends & Live Probe

• SQLite Persistence — Scan history survives restarts (URLs, scans, findings, crawler status)
• Trend Tracking — SVG line chart on res