### The open-source **Answer Engine Optimization (AEO)** & **Generative Engine Optimization (GEO)** toolkit.
#### Audit, optimize, and track whether **ChatGPT, Perplexity, Gemini, Claude, and Google AI Overviews** can crawl, understand, and **cite** your website.
[](https://pypi.org/project/geo-optimizer-skill/)
[](https://python.org)
[](https://github.com/auriti-labs/geo-optimizer-skill/actions)
[](https://app.codecov.io/gh/Auriti-Labs/geo-optimizer-skill)
[](https://github.com/Auriti-Labs/geo-optimizer-skill/actions/workflows/ci.yml)
[](LICENSE)
[](https://modelcontextprotocol.io)
[](https://buymeacoffee.com/auritidesign)
**One command scores your site 0–100 on AI-search readiness, tells you exactly what to fix, and checks whether AI engines actually cite you.**
[Quick Start](#quick-start) · [Live Demo](https://geoready.dev) · [Pricing](https://geoready.dev/pricing) · [Sign Up](https://app.geoready.dev/signup) · [Documentation](https://auriti-labs.github.io/geo-optimizer-skill/) · [Changelog](CHANGELOG.md)
**15 CLI commands** · **8 scoring categories** · **47 research-backed methods** · **7 output formats** · **1,720 tests** · academic foundation ([KDD 2024](https://arxiv.org/abs/2311.09735), [ICLR 2026](https://arxiv.org/abs/2510.11438)) · runs in CI/CD, as a [Python library](#python-api), an [MCP server](#mcp-server), or an [Astro integration](#astro-integration)
---
## What is GEO Optimizer?
**GEO Optimizer** is a free, open-source command-line tool (and Python library, MCP server, and [Astro integration](#astro-integration)) that measures how visible your website is to **AI answer engines** — ChatGPT, Perplexity, Google AI Overviews, Gemini, and Claude — and tells you how to get cited by them.
This discipline goes by several names; this tool covers all of them: **Answer Engine Optimization (AEO)**, **Generative Engine Optimization (GEO)**, **AI SEO**, **LLM SEO**, **AI Search Optimization**, and **AI visibility / LLM visibility** monitoring. If you're searching for an *"open-source AEO tool"*, a *"tool to check if ChatGPT cites my website"*, or an *"llms.txt checker"* — that's this.
```bash
# Zero install — score any site against 8 AI-readiness categories
uvx --from geo-optimizer-skill geo audit --url https://yoursite.com
```
It scores your site against **47 research-backed methods** ([Princeton KDD 2024](https://arxiv.org/abs/2311.09735), [AutoGEO ICLR 2026](https://arxiv.org/abs/2510.11438)) and generates the exact fixes — robots.txt bot rules, `llms.txt`, JSON-LD schema, and the content patterns models quote.
---
## Why AI visibility matters in 2026
AI search engines give one synthesized answer and **cite a handful of sources**. If your site isn't one of them, you're invisible — even if you rank #1 on Google.
```
User asks ChatGPT: "What's the best mortgage calculator?"
ChatGPT: "According to [Competitor.com], the formula is..."
↑ They get cited. You don't.
```
- ChatGPT alone serves [**900M weekly users**](https://llmrefs.com/generative-engine-optimization) — a growing share of sessions that used to be Google searches.
- [**28.3% of ChatGPT's most-cited pages have *zero* organic visibility on Google**](https://llmrefs.com/generative-engine-optimization) (Ahrefs) — AI engines reward different signals than classic SEO.
- Proper JSON-LD schema lifts LLM extraction accuracy [**from 16% to 54%**](https://dev.to/geobuddy/llmstxt-schema-markup-and-technical-geo-what-actually-works-in-2026-o63) (Semrush test on GPT-4).
- [**844,000+ sites**](https://webflow.com/blog/llms-txt) already ship an `llms.txt`. Yours?
### Does AI actually cite your brand? Ask it directly.
`geo citations` queries real answer engines with the questions your customers ask, then reports whether your brand is mentioned and your domain is cited as a source — and which competitors get cited instead of you.
Run the [CLI locally](#quick-start), try the [free audit online](https://geoready.dev), see [pricing](https://geoready.dev/pricing), or [sign up](https://app.geoready.dev/signup) for Pro monitoring.
---
**MIT License** · Built by [Auriti Labs](https://github.com/auriti-labs)
If this saved you time, a star helps others find it.
[](https://github.com/auriti-labs/geo-optimizer-skill/stargazers)
The open-source engine for **Answer Engine Optimization** — get your site cited by ChatGPT, Perplexity, and Gemini.
## Star History
---
## AEO / GEO is not traditional SEO
SEO and AEO/GEO answer different questions:
- **SEO** optimizes for ranking and clicks in traditional search result pages — crawlability, backlinks, keyword signals.
- **AEO / GEO** measures whether an AI answer engine can read, parse, understand, and **cite** your content when generating a response.
- A site can rank well on Google and still be largely opaque to AI systems — missing structured data, no llms.txt, bot access blocked, thin factual density.
GEO Optimizer focuses on the technical and structural signals AI answer engines use: robots.txt bot permissions, `llms.txt` presence and depth, JSON-LD schema richness, brand entity coherence, multi-page topical authority, and content citability across 47 methods. These complement traditional SEO rather than replacing it.
---
## Try it online
| | |
|---|---|
| **Free audit** | [geoready.dev](https://geoready.dev) — single-URL GEO score, no account required |
| **Free tools** | [llms.txt generator](https://geoready.dev/tools/llms-txt-generator/) — build a starter llms.txt from your sitemap |
| **Pricing** | [geoready.dev/pricing](https://geoready.dev/pricing) — plans and feature comparison |
| **Sign up** | [app.geoready.dev/signup](https://app.geoready.dev/signup) — Pro/Studio/Agency available now |
---
## Open-source vs GeoReady Platform
| | GEO Optimizer CLI | GeoReady.dev Free | GeoReady Pro / Studio / Agency |
|---|---|---|---|
| **License / access** | MIT, open-source | Free, no account | Self-serve — [sign up](https://app.geoready.dev/signup) |
| **Core use** | Local audit engine, CI/CD integration, JSON output | Web audit, score preview, educational pages | Monitoring, score history, regression alerts, agency reporting |
| **Target** | Developers, automation | Developers, SEO specialists | Ongoing clients, multi-site portfolios |
| **Pricing** | Free forever | Free forever | From $19/month — see [geoready.dev/pricing](https://geoready.dev/pricing) |
The CLI and web audit remain MIT-licensed and free. The GeoReady platform adds server-side continuity — monitoring, history, and team features — that a local CLI cannot provide on its own.
---
## Quick Start
```bash
pip install geo-optimizer-skill
```
No install? One-shot audit with [uv](https://docs.astral.sh/uv/):
```bash
uvx --from geo-optimizer-skill geo audit --url https://yoursite.com
```
```bash
# Audit any site — get a score 0-100 with actionable recommendations
geo audit --url https://yoursite.com
# Audit a full sitemap and surface weakest pages first
geo audit --sitemap https://yoursite.com/sitemap.xml --max-urls 25
# Compare before/after versions of a page
geo diff --before https://yoursite.com/page-old --after https://yoursite.com/page-new
# Save history and detect regressions over time
geo audit --url https://yoursite.com --save-history --regression
# Show the saved trend for a site
geo history --url https://yoursite.com
# What changed since the last snapshot? (severity + category deltas; CI: --fail-on warning)
geo drift --url https://yoursite.com
# Passive AI visibility snapshot for a domain
geo monitor --domain yoursite.com
# Ask real AI engines: is my brand mentioned? Is my domain cited as a source?
# BYO API key — PERPLEXITY_API_KEY recommended (real web citations)
geo citations --brand "YourBrand" --domain yoursite.com --topic "your product category"
# Save or query archived AI answer snapshots
geo snapshots --query "best GEO tool" --from 2026-03-01 --to 2026-03-30
# Score citation quality inside an archived answer snapshot
geo snapshots --quality --snapshot-id 12 --target-domain yoursite.com
# Run recurring monitoring and generate an HTML trend report
geo track --url https://yoursite.com --report --output ./geo-track-report.html
# Auto-generate all missing files (robots.txt, llms.txt, schema, meta)
geo fix --url https://yoursite.com --apply
# Generate llms.txt from sitemap
geo llms --base-url https://yoursite.com --output ./public/llms.txt
# Generate JSON-LD schema
geo schema --type faq --url https://yoursite.com
```
---
## What it checks
| Area | Points | What GEO Optimizer looks for |
|------|--------|------------------------------|
| **Robots.txt** | /18 | 27 AI bots across 3 tiers (training, search, user). Citation bots explicitly allowed? |
| **llms.txt** | /18 | Present, has H1 + blockquote, sections, links, depth. Companion llms-full.txt? |
| **Schema JSON-LD** | /16 | WebSite, Organization, FAQPage, Article. Schema richness (5+ attributes)? |
| **Meta Tags** | /14 | Title, description, canonical, Open Graph complete? |
| **Content** | /12 | H1, statistics, external citations, heading hierarchy, lists/tables, front-loading? |
| **Brand & Entity** | /10 | Brand name coherence, Knowledge Graph links (Wikipedia/Wikidata/LinkedIn/Crunchbase), about page, geo signals, topic authority |
| **Signals** | /6 | ``, RSS/Atom feed, dateModified freshness? |
| **AI Discovery** | /6 | `.well-known/ai.txt`, `/ai/summary.json`, `/ai/faq.json`, `/ai/service.json`? |
**Score bands:** 86-100 Excellent · 68-85 Good · 36-67 Foundation · 0-35 Critical
**Bonus checks** (informational, do not affect score):
| Check | What it detects |
|-------|-----------------|
| **CDN Crawler Access** | Does Cloudflare/Akamai/Vercel block GPTBot, ClaudeBot, PerplexityBot? |
| **JS Rendering** | Is content accessible without JavaScript? SPA framework detection |
| **WebMCP Readiness** | Chrome WebMCP support: `registerTool()`, `toolname` attributes, `potentialAction` schema |
| **Negative Signals** | 8 anti-citation signals: CTA overload, popups, thin content, keyword stuffing, missing author, boilerplate ratio |
| **Prompt Injection Detection** | 8 manipulation patterns: hidden text, invisible Unicode, LLM instructions, HTML comment injection, monochrome text, micro-font, data-attr injection, aria-hidden abuse |
| **Trust Stack Score** | 5-layer trust aggregation (Technical, Identity, Social, Academic, Consistency) — composite grade A-F |
| **RAG Chunk Readiness** | Content segmentation for RAG retrieval: section word counts, definition openings, heading boundaries, anchor sentences `🆕 v4.7` |
| **Content Decay Prediction** | Detects temporal, statistical, version, event, and price decay patterns — evergreen score 0-100 `🆕 v4.7` |
| **Platform Citation Profile** | Per-platform readiness scores for ChatGPT, Perplexity, Google AI `🆕 v4.7` |
| **Multimodal Readiness** | Image alt coverage, captions, VideoObject/AudioObject schema, subtitle tracks, transcripts — the text scaffolding multimodal engines (Gemini, GPT-4o) need `🆕` |
Plus a separate **Citability Score** (0-100) measuring content quality across 47 methods:
Quotation +41% · Statistics +33% · Fluency +29% · Cite Sources +27% · and 43 more.
### Additional tools
```bash
geo coherence --sitemap https://example.com/sitemap.xml # Cross-page terminology consistency
geo logs --file access.log # AI Crawler Activity — crawler evidence from user-agent logs
geo access --url https://example.com # Agent Access Audit — browser vs AI bot access simulation
geo citations --brand "Acme" --domain acme.com # AI Citation Check — are you cited by answer engines? (BYO key)
geo authority --sitemap https://example.com/sitemap.xml # Topic Authority — multi-page entity coverage, clusters, pillars
geo drift --url https://example.com # Semantic Drift — what changed since the last snapshot
```
**Topic authority** — AI engines map entities and multi-page coverage, not single pages. `geo authority` clusters your site by topic and scores depth, interlinking, and pillar pages:
GEO Optimizer checks whether websites can be **crawled, understood, cited, and monitored** by AI answer engines:
- **Crawled** — robots.txt, CDN access, AI-bot reachability
- **Understood** — schema, llms.txt, content structure
- **Cited** — citability signals across 47 research-backed methods
- **Monitored** — `geo logs` (crawler evidence) and `geo access` (access simulation)
Note on wording: AI Crawler Activity reports crawler evidence from server-log user-agents. Agent Access Audit reports *citation readiness* (whether bots can reach and parse the page). For actual answer-engine checking — "does the AI mention my brand and cite my domain?" — use `geo citations` with your own API key (Perplexity Sonar returns the real source URLs; OpenAI/Anthropic/Groq reveal parametric brand knowledge).
Optional LLM-powered analysis (`pip install geo-optimizer-skill[llm]`):
brand sentiment, citation attribution, multi-turn persistence, cross-platform citation map, prompt library.
---
## Output formats
```bash
geo audit --url https://example.com --format text # Human-readable (default)
geo audit --url https://example.com --format json # Machine-readable
geo audit --sitemap https://example.com/sitemap.xml # Batch sitemap audit (text)
geo audit --sitemap https://example.com/sitemap.xml --format json # Batch sitemap audit (JSON)
geo audit --url https://example.com --format rich # Colored terminal
geo audit --url https://example.com --format html # Self-contained report
geo audit --url https://example.com --format sarif # GitHub Code Scanning
geo audit --url https://example.com --format junit # Jenkins, GitLab CI
geo audit --url https://example.com --format github # GitHub Actions annotations
geo monitor --domain example.com # Passive AI visibility readiness
geo snapshots --query "best GEO tool" # Saved AI answer archive
geo snapshots --quality --snapshot-id 12 # Citation quality tiers for a saved answer
geo history --url https://example.com # Saved score trend
geo track --url https://example.com --report # Monitoring HTML report
```
The JSON output format is intended to remain stable across minor versions and acts as the machine-readable integration contract for the GeoReady platform.
---
## CI/CD Integration — fail the build when AI-readiness drops
Treat AI visibility like test coverage: gate every deploy on it. The GitHub Action scores your site, fails the build below a threshold, and uploads results to the Security tab.
```yaml
# .github/workflows/geo.yml
- uses: Auriti-Labs/geo-optimizer-skill@v4.14.0
with:
url: https://yoursite.com
min-score: 70 # Fail the build if the GEO score drops below 70
format: sarif # Upload findings to the GitHub Security tab
```
Works with GitHub Actions, GitLab CI, Jenkins, CircleCI, and any CI that runs Python. For longitudinal checks, persist snapshots and **fail on regression or semantic drift**:
```bash
geo audit --url https://yoursite.com --save-history --regression
geo drift --url https://yoursite.com --fail-on warning # exit non-zero if signals degraded
```
---
## MCP Server
Use GEO Optimizer from Claude, Cursor, Windsurf, or any MCP client:
```bash
pip install geo-optimizer-skill[mcp]
claude mcp add geo-optimizer -- geo-mcp
```
Then ask: *"audit my site and fix what's missing"*
| Tool | Purpose |
|------|---------|
| `geo_audit` | Full audit with score + recommendations |
| `geo_fix` | Generate fix files |
| `geo_llms_generate` | Generate llms.txt |
| `geo_citability` | Content citability analysis (47 methods) |
| `geo_schema_validate` | Validate JSON-LD |
| `geo_compare` | Compare multiple sites |
| `geo_gap_analysis` | Explain the gap between two sites and prioritize fixes |
| `geo_ai_discovery` | Check AI discovery endpoints |
| `geo_check_bots` | Check bot access via robots.txt |
| `geo_trust_score` | 5-layer trust signal aggregation |
| `geo_negative_signals` | 8 anti-citation signal detection |
| `geo_factual_accuracy` | Audit unsourced claims, contradictions, and broken citations |
---
## Use as AI Context
Load the right file into your AI assistant for GEO expertise:
| Platform | File |
|----------|------|
| Claude Projects | [`ai-context/claude-project.md`](ai-context/claude-project.md) |
| ChatGPT Custom GPT | [`ai-context/chatgpt-custom-gpt.md`](ai-context/chatgpt-custom-gpt.md) |
| Cursor | [`ai-context/cursor.mdc`](ai-context/cursor.mdc) |
| Windsurf | [`ai-context/windsurf.md`](ai-context/windsurf.md) |
| Kiro | [`ai-context/kiro-steering.md`](ai-context/kiro-steering.md) |
---
## Internal Skill System
The repository now includes a structured internal skill catalog for maintainers at [`src/geo_optimizer/skills/catalog/`](src/geo_optimizer/skills/catalog/) plus validation rules and examples. See [`docs/skill-system.md`](docs/skill-system.md) for the v1 architecture.
---
## Python API
```python
from geo_optimizer import audit
result = audit("https://example.com")
print(result.score) # 85
print(result.band) # "good"
print(result.citability.total_score) # 72
print(result.score_breakdown) # {"robots": 18, "llms": 14, ...}
print(result.recommendations) # ["Add FAQPage schema..."]
```
Async variant:
```python
from geo_optimizer import audit_async
result = await audit_async("https://example.com")
```
---
## Show your GEO score
Add a live GEO score badge to your README — like a coverage badge, but for AI visibility:
```markdown
[](https://geoready.dev?utm_source=badge)
```
HTML variant for docs sites:
```html