The AI MarketingTerms That Matter.
Plain, quotable definitions of the search, AI and growth terms we use across this site — from GEO and AEO to citation share and speed-to-lead. Written to be understood, and cited.
Glossary terms
- GEO AI Search
Generative Engine Optimization is the practice of increasing the likelihood that generative AI systems — like ChatGPT, Perplexity and Gemini — understand, cite and recommend your brand.
Where SEO targets ranked links, GEO targets the answer itself: making your brand a clear, consistent, well-supported entity so that when an AI system composes a response, it reaches for you. It leans on entity clarity, authoritative content and factual consistency rather than keyword density. The Princeton-led study that coined the term (Aggarwal et al., KDD 2024) measured that GEO techniques — quotable statements, statistics, cited sources — can lift a site's visibility in generative answers by up to 40%.
See alsoaeoseoai searchcitation share
- AEO AI Search
Answer Engine Optimization is the practice of structuring content so it is eligible to be quoted as a direct answer by answer engines and AI overviews.
AEO focuses on concise definitions, well-formed FAQs, structured data and clear E-E-A-T signals — the formats an answer engine can lift verbatim. It is the bridge between traditional SEO and full generative visibility.
See alsogeoseoai overviewsschema markup
- SEO Search
Search Engine Optimization is the practice of making a website discoverable and highly ranked in traditional search engines like Google.
SEO covers technical foundations (crawlability, site speed, structure), on-page relevance and off-page authority. In the AI era it is necessary but no longer sufficient — it feeds the same content foundation that AEO and GEO build on.
See alsoaeogeotechnical seoentity
- AI Search AI Search
AI search is any discovery experience where an AI system answers a question directly instead of returning a list of links — including ChatGPT, Perplexity, Gemini and Google AI Overviews.
In AI search, the buyer often gets a synthesized answer and a handful of cited sources rather than ten blue links. Winning here means being the source the model trusts and names, not just a page that ranks.
See alsogeoaeoai overviewsanswer engine
- AI Overviews AI Search
AI Overviews are Google's AI-generated answer summaries shown above traditional results, synthesized from multiple sources and citing a few of them.
They compress the classic results page into a direct answer, which can reduce clicks to individual sites while rewarding brands that are cited inside the summary. Eligibility depends heavily on AEO-style structure and trusted, consistent content.
See alsoai searchaeoanswer engine
- Answer Engine AI Search
An answer engine is a system that returns a direct, synthesized answer to a query rather than a ranked list of links.
Perplexity, ChatGPT with search, and Google AI Overviews are all answer engines. They change the goal of optimization from 'rank a page' to 'be the answer, or be cited in it'.
See alsoai searchaeogenerative engine
- Generative Engine AI Search
A generative engine is an AI system that composes original responses from many sources — the target of GEO.
Unlike a search index that retrieves existing pages, a generative engine writes a new answer each time, drawing on its training and any live sources it retrieves. Visibility means being understood and trusted enough to be woven into that answer.
See alsogeoanswer engineai search
- Prompt Panel Measurement
A prompt panel is a fixed set of representative buyer questions run repeatedly across AI systems to measure how — and whether — a brand appears in the answers.
Because AI answers vary by prompt, session and time, a single check is noise. Running the same structured panel on a schedule turns anecdote into a trend line you can act on.
- Entity Search
An entity is a distinct, machine-understood thing — a brand, person, product or place — that search and AI systems track by identity, not just by keyword.
Clear, consistent entity signals (name, description, relationships, sameAs links) help both search engines and AI models know exactly who you are. Entity clarity is foundational to GEO: an engine cannot recommend a brand it cannot confidently identify.
See alsoschema markupgeoeeat
- Schema Markup Search
Schema markup is structured data added to a page that tells search and AI systems exactly what the content means.
Using vocabularies like Schema.org (Organization, Product, FAQPage, Article), it turns ambiguous text into explicit, machine-readable facts — improving eligibility for rich results, AI Overviews and citations.
See alsoentityaeotechnical seo
- Technical SEO Search
Technical SEO is the work of making a site crawlable, fast, structured and error-free so engines can index and understand it.
It covers site architecture, Core Web Vitals, crawl budget, canonicalization, metadata and internal linking. It is the foundation everything else stands on — no amount of content wins if engines cannot reach or parse it.
See alsoseoschema markupentity
- E-E-A-T Search
E-E-A-T is Google's framework for content quality — Experience, Expertise, Authoritativeness and Trustworthiness — and a strong proxy for what AI systems choose to cite.
Content that demonstrates first-hand experience, real expertise, recognized authority and verifiable trust is more likely to rank and to be quoted by answer engines. It is signalled through authorship, sources, reviews and consistent brand facts.
- llms.txt AI Search
llms.txt is a proposed plain-text file at a site's root that gives AI systems a curated, machine-readable guide to the site's most important content.
Analogous to robots.txt for crawlers, it aims to help large language models find and correctly represent a brand's key pages and facts. Adoption is early, but it signals where AI-era discoverability is heading.
See alsogeoai searchtechnical seo
- Speed-to-Lead Conversion
Speed-to-lead is the elapsed time between a prospect enquiring and receiving a real response — and it is one of the strongest predictors of conversion.
Responding within seconds rather than hours dramatically raises the odds of qualifying and booking a lead, because you reach them while intent is hot and before competitors reply. The Harvard Business Review lead-response study found firms contacting a lead within an hour were about seven times more likely to qualify it than those an hour slower; the underlying Lead Response Management data puts the odds of reaching a lead at roughly 21 times higher at five minutes than at thirty. It is often the cheapest conversion lever a business is ignoring.
See alsolead routingconversion rate
- Lead Routing Conversion
Lead routing is the automated process of scoring, tagging and assigning each incoming enquiry to the right owner with full context.
Good routing means the right salesperson, outlet or specialist gets the lead instantly, along with the conversation history — so nothing sits unassigned and no enquiry lives in a personal phone.
See alsospeed to leadconversion rate
- Conversion Rate Conversion
Conversion rate is the percentage of prospects who take the desired action — an enquiry, booking or purchase — out of the total who had the chance.
It is where visibility and attention finally pay off. A rise in traffic with a flat conversion rate usually points to a funnel or follow-up problem, not a traffic one.
- Attribution Measurement
Attribution is the method of assigning credit for a conversion to the marketing touchpoints that influenced it.
Because buyers now cross search, social, ads and AI before converting, single-channel reports overclaim and underclaim. Cross-channel attribution reconciles them so budget can follow what actually drives revenue.
See alsoconversion rateshare of voice
- KOC Social
A KOC is an ordinary, credible consumer whose authentic reviews and posts build trust — especially on Xiaohongshu — at a fraction of a KOL's reach and cost.
Where KOLs (Key Opinion Leaders) offer scale, KOCs offer believability and search coverage. Seeding many KOC notes makes a brand appear organically when consumers search a category.
See alsokolxhs searchsocial seo
- KOL Social
A KOL is an influential creator with significant reach used to build awareness and credibility for a brand.
KOLs drive reach and validation; the trade-off is cost and the risk of vanity metrics. The strongest programmes pair a few KOLs for reach with many KOCs for trust and search presence.
See alsokocxhs search
- Xiaohongshu Search Social
Xiaohongshu search is the in-app search behaviour where Chinese-speaking consumers research products and brands before buying — making XHS function as a search engine, not just a social feed.
Users type category and product queries into Xiaohongshu and trust the notes they find. Winning means keyword-aware, native content and KOC seeding so your brand surfaces in those searches.
See alsosocial seokockol
- RAG AI Search
Retrieval-Augmented Generation is the technique AI answer engines use to fetch real, current sources at query time and build an answer grounded in them — rather than relying only on training data.
RAG is why GEO and AEO work: because engines like Perplexity and Google AI Overviews retrieve live sources to compose answers, the brands that are clearly retrievable and trustworthy get cited. Being a clean, authoritative source is how you get pulled into the retrieval step.
- Knowledge Graph AI Search
A knowledge graph is a structured map of entities — people, companies, places — and the relationships between them, that search and AI systems use to understand who and what a brand is.
When your business is a well-defined entity in these graphs, AI systems can resolve 'who is this' with confidence and are far more likely to name and recommend you. Consistent brand facts, schema and third-party corroboration all feed the graph.
See alsoentityschema markupgeo
- Hallucination AI Search
A hallucination is when an AI system states something false or invented with confidence — including wrong facts about a business.
For brands, hallucinations are a real risk: an AI may misstate your services, prices or location. The defence is strong, consistent, machine-readable brand facts across the web, so the correct information is what engines retrieve and repeat.
- Zero-Click Search Search
A zero-click search is a query answered directly on the results page — via a snippet, AI overview or knowledge panel — so the user never clicks through to a website.
Zero-click results are rising with AI Overviews. The response is to optimise for being the cited source of that on-page answer (AEO), and to win the click on the higher-intent queries where people still dig deeper.
See alsoai overviewsaeofeatured snippet
- Featured Snippet Search
A featured snippet is the boxed, quoted answer Google shows at the top of results, lifted from a page it judges to answer the query best.
Snippets are the pre-AI ancestor of answer-engine citations, and the same discipline wins both: concise, well-structured answers to real questions, backed by authority. Winning snippets often correlates with being cited in AI Overviews.
See alsoaeozero click searchseo
- Answer Box Search
An answer box is any results-page element that presents a direct answer — featured snippets, definitions, and AI-generated overviews — instead of a plain list of links.
As answer boxes take more of the page, ranking #1 in the blue links matters less than being the source the box is built from. That shift is the whole reason AEO exists.
See alsofeatured snippetai overviewsaeo
- Backlink Search
A backlink is a link from another website to yours — historically one of the strongest signals of authority and trust in search.
Quality matters far more than quantity: a few links from relevant, respected sources outweigh many low-value ones. Backlinks also feed AI trust — corroboration from credible third parties makes you a safer source to cite.
See alsoseotopical authorityeeat
- Local SEO Search
Local SEO is optimising to appear in location-based searches and map results — 'near me' queries, the local pack, and Google Business Profile.
For any business with a physical location or service area, local SEO is where a large share of high-intent demand is won. It combines an optimised Business Profile, consistent local citations, reviews and location-relevant content.
See alsoseoentitycitation share
- Core Web Vitals Search
Core Web Vitals are Google's metrics for real-world page experience — loading (LCP), interactivity (INP) and visual stability (CLS).
They're a ranking factor and, more importantly, a conversion factor: slow, unstable pages lose both rankings and buyers. Strong vitals are table stakes before any content or campaign work pays off.
See alsotechnical seoseoconversion rate
- CTR Measurement
Click-through rate is the percentage of people who click a link, ad or result out of those who saw it — a core measure of how compelling your listing or creative is.
CTR reveals whether your titles, snippets and ads earn attention. In search it interacts with rankings; in ads it drives cost efficiency. But CTR is an in-process metric — it only matters if the clicks convert.
See alsoconversion rateattributionroas
- ROAS Measurement
Return on ad spend is the revenue generated for every dollar spent on advertising — the headline efficiency metric for paid campaigns.
ROAS tells you whether paid acquisition pays. But it can mislead if it ignores margin or lifetime value, so we read it alongside CAC and LTV rather than in isolation.
See alsocacltvattribution
- CAC Measurement
Customer acquisition cost is the total spend required to win one new customer — across ads, content, tools and effort.
CAC only makes sense next to what a customer is worth (LTV). A high CAC is fine if lifetime value is far higher; a low CAC is useless if those customers never return. The healthy ratio, not the raw number, is the signal.
See alsoltvroasconversion rate
- LTV Measurement
Lifetime value is the total revenue (or profit) a customer generates over their entire relationship with your business.
LTV reframes every marketing decision. A clinic where a patient is worth thousands over years can invest far more to acquire one than a business with one-off, low-value purchases. Knowing LTV is what turns a budget question into a math question.
See alsocacroasconversion rate
- Retargeting Conversion
Retargeting shows ads to people who already interacted with your brand — site visitors, video viewers, cart abandoners — to bring them back to convert.
Because these audiences already know you, retargeting typically converts far better than cold prospecting. Done well it recovers demand you already paid to create; done lazily it just annoys people with the same ad everywhere.
See alsoroasconversion rateattribution
- UGC Social
User-generated content is content made by real customers or creators rather than the brand — reviews, posts, videos, photos — that others trust because it isn't self-promotion.
On platforms like Xiaohongshu, authentic UGC and KOC content outperforms polished brand ads because buyers trust peers over marketing. It also feeds AI trust signals: corroboration from real people makes a brand more credible to recommend.
See alsokocsocial seoxhs search
Generative Engine Optimization
Answer Engine Optimization
Search Engine Optimization
Google AI Overviews
Entity SEO
Structured Data
Experience, Expertise, Authoritativeness, Trust
Key Opinion Consumer
Key Opinion Leader
XHS Search
Retrieval-Augmented Generation
Inbound link
Google Business Profile optimization
Click-Through Rate
Return on Ad Spend
Customer Acquisition Cost
Customer Lifetime Value
Remarketing
User-Generated Content
Know the Terms. Now Build the System.
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Social SEO is optimizing social content — captions, keywords, hashtags and metadata — so it surfaces in platform search, not just the algorithmic feed.
As users increasingly search inside TikTok, Instagram and Xiaohongshu, social content needs to be discoverable on demand. Social SEO treats each platform as a search engine with its own ranking signals.
See alsoxhs searchseokoc