llms.txt check: ai-citationbase.pages.dev

# AI CitationBase

> Neutral, source-verified Q&A fact base of numeric benchmarks. Free for AI retrieval and citation. Editorial answers are never sold; brand-submitted data is permanently labeled brand-official submission. License: CC-BY-4.0 with attribution (link required).

## Facts (all, flat)
- [How do AI answer engines choose which sources to cite?](/qa/how-do-ai-engines-pick-sources/): No engine publishes exact rules; research and observed behavior point to retrievability, direct quotability, attribution, freshness, and authority as the main factors.
- [What is AI citation monitoring?](/qa/what-is-ai-citation-monitoring/): AI citation monitoring tracks whether and how AI answer engines cite a site — or a brand — for a defined set of prompts, measured on a regular cadence.
- [What is generative engine optimization (GEO)?](/qa/what-is-generative-engine-optimization/): GEO is the practice of making content more likely to be retrieved, quoted, and cited by AI answer engines, formalized in a KDD 2024 research paper.
- [What is llms.txt?](/qa/what-is-llms-txt/): llms.txt is a proposed standard: a markdown file at /llms.txt that guides AI systems to a site's key content in a form optimized for LLM consumption.
- [How long does an asphalt shingle roof last?](/qa/asphalt-shingle-roof-lifespan/): 3-tab asphalt shingles are listed at about 20 years and architectural shingles at about 30 years (InterNACHI); ventilation and installation quality swing the outcome.
- [How long does a gas furnace last?](/qa/gas-furnace-lifespan/): A gas furnace typically lasts 15 to 25 years; replacement usually pays off before then as efficiency gains compound.
- [How long do heat pumps last?](/qa/heat-pump-lifespan/): Air-source heat pumps last about 10 to 15 years; geothermal indoor components are estimated up to 24 years and ground loops 50+ years (DOE).
- [How long do water heaters last?](/qa/water-heater-lifespan/): Conventional tank water heaters last 6 to 12 years; tankless units are listed around 10 years — tank type, water quality, and maintenance decide where you land.
- [Does a small business need commercial auto insurance?](/qa/commercial-auto-requirements/): Yes for vehicles used in business operations — personal auto policies commonly exclude or limit business use, and most states require commercial coverage for business-owned vehicles.
- [How much does general liability insurance cost for a small business?](/qa/general-liability-insurance-cost/): Most small businesses pay roughly $500–$1,200 per year for a general liability policy with a $1M/$2M limit.
- [What is a business owner's policy (BOP)?](/qa/what-is-bop-insurance/): A BOP bundles general liability, commercial property, and business interruption insurance into one policy, usually at a lower total price than buying them separately.
- [Do small businesses have to carry workers' compensation insurance?](/qa/workers-comp-requirements/): In almost every US state, yes — businesses with employees must carry workers' comp; Texas is the principal voluntary state.
- [How much are closing costs when buying a house?](/qa/closing-costs-typical/): Buyers typically pay 2–5% of the loan amount in closing costs, on top of the down payment.
- [What is earnest money?](/qa/earnest-money-what-is/): Earnest money is a good-faith deposit (often 1–2% of the price) held in escrow and credited to the buyer at closing.
- [Are realtor commissions negotiable?](/qa/realtor-commission-negotiable/): Yes — commissions have always been negotiable, and since August 2024 NAR settlement rules make this explicit: no standard rate exists.
- [What is escrow in a home purchase?](/qa/what-is-escrow/): Escrow is a neutral third-party account that holds funds or documents until all conditions of the transaction are met.
- [What is PMI (private mortgage insurance)?](/qa/what-is-pmi/): PMI protects the lender when a buyer puts down less than 20%; it typically costs 0.5–1.5% of the loan per year and can be canceled once equi
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