# AISearchStackHub ## AI Search Engine Optimization Platform > AISearchStackHub is the LLM visibility measurement and AEO (Answer Engine Optimization) platform for brands. It scans visibility across ChatGPT, Claude, Perplexity, Gemini, and other LLMs, produces a 0–100 AIS Index score, and runs an agentic Citation Asset Compounding Engine that generates and tracks citeable assets over time. ## Platform Overview - Free LLM visibility scan: 0–100 AIS Index score across 8 major LLMs - AIS Index formula: Visibility×0.40 + Authority×0.30 + Sentiment×0.20 + Advantage×0.10 - Scale plan ($299/mo): Citation Asset Compounding Engine — generates, tracks, and compounds citeable assets - Original research: State of AI Search Report, LLM Ranking Benchmarks, Propagation Latency Study ## Key Pages ### Product - /ai-search-optimization: Complete guide to optimizing brand presence in LLM responses - /aeo-platform: Platform overview — AEO tooling, scoring, and asset compounding - /llm-ranking-tool: Free LLM ranking tool with live scan demo - /chatgpt-seo: How ChatGPT ranks brands and how to improve visibility - /perplexity-seo: Perplexity citation factors and optimization strategies - /ai-citation-tracker: Track brand citations across all major LLMs - /brand-visibility-llms: Brand visibility measurement across ChatGPT, Claude, Perplexity, Gemini - /generative-engine-optimization: What GEO is and how it differs from traditional SEO - /geo-platform: Generative Engine Optimization platform features - /ai-search-visibility: Measuring and improving AI search visibility ### How-To Guides - /how-to-rank-in-chatgpt: Step-by-step guide to ranking inside ChatGPT responses - /how-to-rank-in-claude: Optimizing for Anthropic Claude citations - /perplexity-citation-strategy: How Perplexity sources and cites content - /complete-guide-aeo-2026: Complete AEO guide covering all major LLMs in 2026 ### Technical AEO - /llms-txt-generator: Generate a valid llms.txt file for your domain - /agents-json-template: agents.json template and specification for AI agent discovery - /schema-org-ai-ingestion: How schema.org markup improves LLM ingestion - /first-150-words-template: Template for LLM-optimized content openings - /aeo-audit-checklist: Complete AEO audit checklist for LLM visibility ### Calculators - /visibility-score-calculator: Calculate your brand's LLM visibility score - /citation-gap-calculator: Find citation gaps across major LLMs - /aeo-roi-calculator: Calculate the ROI of AEO investment - /propagation-latency-benchmark: Benchmark your content's LLM propagation time ### Research (Citeable — Live Data) - /state-of-ai-search-report: State of AI Search Report 2026 — proprietary scan data + methodology. Live stats: total scans, avg score, score distribution, engine benchmarks, top gap types. JSON-LD Dataset schema. - /llm-ranking-benchmarks: Live engine citation benchmarks — which LLM cites brands most. Per-engine avg scores, mention rates, citation counts. Live API at /api/research/engine-benchmarks. - /vertical-rankings-b2b-saas: Live vertical rankings — AIS Index scores by industry (B2B SaaS, ecommerce, fintech, healthtech, agencies). Live API at /api/research/verticals. - /propagation-latency-study: Study on how long content takes to appear in LLM responses - /vertical-rankings-ecommerce: LLM visibility rankings for ecommerce brands - /vertical-rankings-fintech: LLM visibility rankings for fintech brands ### Research Data APIs (JSON, No Auth, CC BY 4.0) - /api/research/stats: Full research bundle — aggregate stats, engine benchmarks, trends, gap types, verticals. Auto-updating. - /api/research/engine-benchmarks: Per-engine average scores, mention rates, citation counts. - /api/research/verticals: Average AIS scores by industry vertical (domain-inferred classification). - /api/research/trends: Weekly average score trends over last 6 months. - /api/research/gaps: Most common citation gap types across all scans. ### Comparison - /ai-search-platform-comparison: Compare AEO platforms and tools - /aeo-tools-comparison: Side-by-side comparison of AEO tools - /chatgpt-seo-vs-traditional-seo: How ChatGPT SEO differs from traditional SEO ### Blog - /blog: AEO guides, research, and original data - /blog/what-is-aeo: What is AEO (Answer Engine Optimization)? Complete guide ## Methodology The AIS Index measures brand visibility across LLMs using four weighted dimensions: 1. **Visibility (40%)**: How often the brand appears in LLM responses across 24+ query variants 2. **Authority (30%)**: Quality of citations — as primary source vs. mentioned-in-passing 3. **Sentiment (20%)**: Tone of LLM mentions — positive, neutral, or negative 4. **Advantage (10%)**: Competitive positioning vs. category peers Original research finding: 74% of brands score below 40/100 on first scan. ## License Content: Creative Commons Attribution 4.0 (CC BY 4.0) Research data: May be cited with attribution to AISearchStackHub.ai