# AIRank > AI SEO — also called Generative Engine Optimization (GEO) or Answer Engine Optimization (AEO). AIRank measures and fixes how ChatGPT, Claude, Perplexity and Gemini answer questions about a business: a 47-point scanner, daily citation tracking across assistants, and edge-worker injections that ship the fix rather than just reporting it. ## Start here - [Pricing](https://www.airank.tech/pricing): Solo, Pro and Scale plans. Free tier, no card for the scan, 14-day money-back on every paid tier. - [Leaderboard](https://www.airank.tech/leaderboard): Which brands AI assistants cite most, by category. - [Integrations](https://www.airank.tech/integrations): WordPress plugin, Shopify app, and a universal snippet or DNS proxy for any stack. - [About](https://www.airank.tech/about): Who builds AIRank and how the company operates. ## Documentation - [Getting started with AIRRNK](https://www.airank.tech/docs/getting-started): Create an account, connect your first site, and run your first scan in under five minutes. - [Running your first scan](https://www.airank.tech/docs/first-scan): What AIRRNK checks, how long it takes, and how to read the report. - [Installing the WordPress plugin](https://www.airank.tech/docs/wordpress-install): Drop-in plugin install for self-hosted WordPress and WordPress.com Business plans. - [Installing the Shopify app](https://www.airank.tech/docs/shopify-install): One-click install from the Shopify App Store, scoped to theme edits and metafields. - [How citations work](https://www.airank.tech/docs/how-citations-work): The methodology behind AIRRNK's citation tracker, including sampling, query construction, and deduplication. - [Understanding the AI Score](https://www.airank.tech/docs/understanding-ai-score): The 47-point rubric used to grade AI-readiness, weighted by empirical citation-lift impact. ## Guides - [How to get cited by ChatGPT](https://www.airank.tech/how-to/get-cited-by-chatgpt): A 20-minute setup that moves the needle. (Easy, 20 minutes) - [How to add FAQ schema to any page](https://www.airank.tech/how-to/add-faq-schema): The single highest-leverage structured data change you can ship. (Easy, 15 minutes) - [How to set up llms.txt](https://www.airank.tech/how-to/setup-llms-txt): The robots.txt for language models, in 15 minutes. (Easy, 15 minutes) - [How to improve your AI Score by 20 points](https://www.airank.tech/how-to/improve-ai-score): A checklist that reliably produces a 20-point swing in 14 days. (Moderate, 2–4 hours spread over a week) - [How to track AI citations without AIRank](https://www.airank.tech/how-to/track-ai-citations): A DIY setup you can build in a weekend. (Advanced, 4–8 hours to build, ongoing maintenance) - [How to rank in Perplexity](https://www.airank.tech/how-to/rank-in-perplexity): Perplexity is unusually gameable if you understand its priors. (Moderate, 1–2 hours per target query) ## Glossary - [Generative Engine Optimization](https://www.airank.tech/glossary/generative-engine-optimization): The practice of making a website more likely to be cited by AI answer engines (ChatGPT, Claude, Perplexity, Google AI Mode) rather than simply ranked on a traditional search results page. - [llms.txt](https://www.airank.tech/glossary/llms-txt): A Markdown file at a site's root that tells AI crawlers what the site is about and which URLs are canonical — a kind of robots.txt for language models. - [Schema Markup](https://www.airank.tech/glossary/schema-markup): Structured data embedded in a page (usually as JSON-LD) that describes what the page is about in a machine-readable vocabulary defined at schema.org. - [AI Score](https://www.airank.tech/glossary/ai-score): AIRank's 0–100 grade for how likely a site is to be cited by a language model, calculated from 47 weighted checks across four pillars. - [Citation Density](https://www.airank.tech/glossary/citation-density): A measure of how many distinct, quotable 100–400 token chunks appear per 500 words of content on a page. - [Answer Capsule](https://www.airank.tech/glossary/answer-capsule): A self-contained paragraph-level span of text that answers a specific question independently, without requiring surrounding context to be understood. - [FAQPage Schema](https://www.airank.tech/glossary/faq-page-schema): A specific schema.org type that declares a page contains a list of question-and-answer pairs, optimized for structured ingestion by search and AI systems. - [Indexing API](https://www.airank.tech/glossary/indexing-api): An API — most commonly IndexNow (Bing/Yandex) or Google's Indexing API — that pushes URL changes to a search index in real time instead of waiting for crawlers. ## Comparisons - [AIRank vs Semrush](https://www.airank.tech/compare/vs-semrush): AIRank vs Semrush: traditional SEO versus AI visibility. - [AIRank vs Ahrefs](https://www.airank.tech/compare/vs-ahrefs): AIRank vs Ahrefs: the backlink index versus AI citation tracking. - [AIRank vs Surfer](https://www.airank.tech/compare/vs-surfer): AIRank vs Surfer: content grading for SEO versus for AI. - [AIRank vs Frase](https://www.airank.tech/compare/vs-frase): AIRank vs Frase: AI-assisted writing versus AI-visibility infrastructure. - [AIRank vs Clearscope](https://www.airank.tech/compare/vs-clearscope): AIRank vs Clearscope: premium content grading versus AI-visibility infrastructure. ## By industry - [SaaS](https://www.airank.tech/industry/saas): AI visibility for B2B software companies. - [Shopify Stores](https://www.airank.tech/industry/shopify-stores): AI visibility for ecommerce built on Shopify. - [Law Firms](https://www.airank.tech/industry/law-firms): AI visibility for legal practices. - [Fintech](https://www.airank.tech/industry/fintech): AI visibility for banking, payments, and investment platforms. - [Dev Tools](https://www.airank.tech/industry/dev-tools): AI visibility for developer-facing products. - [Health Tech](https://www.airank.tech/industry/health-tech): AI visibility for digital health, telemedicine, and wellness. ## Writing - [Getting cited by ChatGPT: a practical guide for 2026](https://www.airank.tech/blog/getting-cited-by-chatgpt): What actually moves the needle when you want ChatGPT to recommend your product by name — tested across 10,000 real queries. - [How Refly got cited 20× more often in ChatGPT in six weeks](https://www.airank.tech/blog/how-refly-got-cited-20x): A short case study on Refly, the AI writing workspace, and exactly which three changes moved their citation rate from 1.2 per 100 queries to 24.5. - [The shift from SEO to GEO](https://www.airank.tech/blog/the-shift-from-seo-to-geo): Generative Engine Optimization is not SEO with a new coat of paint. It is a fundamentally different optimization target, and the teams who see that first will win the decade. - [llms.txt: what it is, why it matters, how to write one](https://www.airank.tech/blog/llms-txt-what-why-how): Jeremy Howard's llms.txt proposal is now supported by Anthropic, Perplexity, and Google's AI Mode. Here's the exact spec and a template you can deploy today.