Marketing & AI Glossary: MQL, CRO, GEO, AEO, RAG

Funnel & Metrics

MQLMarketing Qualified Lead: A lead that has shown enough interest (downloaded an asset, attended a webinar, engaged with content) to be worth marketing follow-up, but hasn’t yet been vetted for budget, authority, need, or timeline. The step before an SQL, not a synonym for it.
SQLSales Qualified Lead: A lead that sales has vetted against real buying criteria — budget, authority, need, timeline — and accepted into the pipeline as worth an active sales conversation. The hand-off point where marketing’s job ends and sales’ job starts.
ICPIdeal Customer Profile: A specific, disqualifying description of the account or buyer most likely to become a good customer — not a broad persona, but a filter tight enough to say who you should walk away from as clearly as who you should chase.Learn more →
CACCustomer Acquisition Cost: Total sales and marketing spend divided by the number of new customers it produced over the same period. Only meaningful next to LTV — a low CAC on customers who churn immediately isn’t actually cheap.
LTVCustomer Lifetime Value: The total revenue (or, better, contribution margin) a customer is expected to generate over the full length of the relationship, not just the first purchase. The number CAC has to be measured against to know if acquisition spend is actually working.
ROASReturn on Ad Spend: Revenue generated per dollar of ad spend. Useful as a channel-level signal, but it ignores margin — two products can post identical ROAS while one is far more profitable once fulfillment costs, discounts, and returns are counted.Learn more →
CROConversion Rate Optimization: The practice of systematically testing changes to a page or flow — copy, layout, offer, friction points — to increase the percentage of visitors who complete a target action, based on evidence rather than opinion.Learn more →
CTRClick-Through Rate: The percentage of people who saw a link, ad, or listing and clicked it. High CTR with low downstream conversion usually means the click promised something the destination didn’t deliver.
CPACost Per Acquisition: What it costs, in ad spend, to generate one conversion — a purchase, signup, or other defined action. Channel- and campaign-level, unlike CAC, which is usually calculated across the whole business.
CPLCost Per Lead: Ad or campaign spend divided by the number of leads it generated. A cheap CPL on unqualified leads isn’t a win — it just moves the cost downstream to sales, filtering through conversations that were never going to close.
Attribution: The method used to credit a conversion to the marketing touchpoint(s) that influenced it. Ranges from simple (last-click) to complex (multi-touch, data-driven) — the model chosen changes which channels look like they’re working.Learn more →

SEO & Content

SERPSearch Engine Results Page: The page of results a search engine returns for a query — organic listings, ads, maps results, and increasingly an AI-generated answer, all competing for the same click.
Backlink: A link from another website pointing to yours. Search engines treat backlinks from relevant, credible sites as a signal of authority — which is why link-building and digital PR exist as disciplines.Learn more →
Digital PR: Earning coverage, mentions, and links from journalists and publishers — typically by pitching original data, expert commentary, or a newsworthy angle — rather than paying for placement or asking directly for a link.Learn more →
Technical SEO: The non-content half of SEO: crawlability, indexation, site speed, mobile usability, structured data, canonical tags, and the other infrastructure that determines whether search engines can find, render, and correctly understand a page at all.Learn more →
Core Web Vitals: Google’s set of page-experience metrics — loading speed, interactivity, and visual stability — used as a (minor) ranking factor and a real proxy for whether visitors actually have a usable experience.
Keyword Gap Analysis: Comparing the search terms competitors rank for against the terms your own site ranks for, to find the queries where you’re invisible and they’re not — usually the fastest way to find an underexploited opportunity.Learn more →
E-E-A-TExperience, Expertise, Authoritativeness, Trustworthiness: Google’s framework (from its Search Quality Rater Guidelines) for judging whether content demonstrates real, first-hand experience and credible expertise — increasingly relevant as AI-generated content makes generic, unsourced pages easy to spot and easy to discount.

AI, GEO & AEO

GEOGenerative Engine Optimization: Structuring content so AI systems (ChatGPT, Gemini, Perplexity, AI Overviews) can accurately extract, cite, and recommend it when generating an answer — the practice of being legible to a model, not just to a search index.
AEOAnswer Engine Optimization: Writing content to directly answer specific questions — clear question-and-answer structure, direct-answer openers, FAQ sections — so it can be lifted cleanly into a search engine’s answer box or an AI system’s response, not just ranked as a blue link.
RAGRetrieval-Augmented Generation: An AI architecture where a model retrieves relevant documents from a specific knowledge base before generating a response, grounding its answer in that source material instead of relying only on what it learned during training. The standard approach for AI systems that need to cite a company’s own, current data.Learn more →
LLMLarge Language Model: The class of AI model (GPT, Gemini, Claude, and similar) trained on large text datasets to generate human-like language. The underlying technology behind chatbots, AI search answers, and most current generative-AI tools.Learn more →
AI Overviews: Google’s AI-generated summary shown above traditional organic results for many queries, synthesizing an answer from multiple sources and citing some of them. A major reason AEO and GEO have become distinct disciplines from traditional SEO.
Structured DataSchema Markup: Machine-readable code (commonly JSON-LD) embedded in a page that explicitly labels what the content is — a product, an FAQ, a review, an organization — so search engines and AI systems don’t have to guess. Only useful when it accurately describes what’s visibly on the page, not what you wish were there.
FAQPage Schema: A specific structured-data type that marks up a visible list of questions and answers, making them eligible for rich results in search and easier for AI systems to extract as direct answers. Should always mirror an FAQ that’s actually rendered on the page — never a hidden or invented one.
Zero-Click Search: A search where the user gets their answer directly on the results page — from a featured snippet, knowledge panel, or AI Overview — and never clicks through to a website. Growing steadily, which is part of why brand visibility inside the answer itself now matters as much as the click.

Automation & Data

CRMCustomer Relationship Management: The system of record for contacts, accounts, deals, and their history — HubSpot, Salesforce, and similar. The hub that marketing automation, lead scoring, and attribution all need to be wired into in order to report on revenue, not just activity.Learn more →
GA4Google Analytics 4: Google’s current analytics platform, built around events rather than sessions. Replaced Universal Analytics in 2023 and requires a different implementation approach — custom event tracking and a data layer, not a drop-in upgrade.Learn more →
GTMGoogle Tag Manager: A tag-management system that lets marketing tags (analytics, ads, conversion pixels) be added and updated through a web interface instead of editing site code directly for every change.Learn more →
Marketing Automation: Software-driven workflows — lead scoring, nurture sequences, lifecycle triggers, routing — that act on contact and behavioral data without a person manually executing each step. The infrastructure that lets a small team run a pipeline that would otherwise need many more hands.Learn more →
Lead Scoring: Assigning a numeric or tiered value to a lead based on fit (does this look like our ICP?) and behavior (are they actually engaging?), so sales attention goes to the leads most likely to close instead of being spread evenly across everyone.Learn more →
Server-Side Tracking: Sending analytics and conversion data from a server rather than relying entirely on a browser-based tag, which is increasingly blocked by ad blockers, ITP, and privacy settings. More resilient, but requires real implementation work rather than a copy-pasted snippet.Learn more →
First-Party Data: Data a business collects directly from its own customers and visitors — email addresses, purchase history, on-site behavior — as opposed to third-party data bought from a broker. Increasingly the foundation of tracking and targeting as third-party cookies phase out.Learn more →
Consent Mode: Google’s framework for adjusting how tags behave based on a visitor’s cookie-consent choice — measuring in a privacy-compliant, modeled way when consent is denied, instead of either ignoring the choice or losing the data entirely.Learn more →

Business & Pricing

DTCDirect-to-Consumer: A brand that sells directly to end customers — typically through its own ecommerce store and a small number of marketplaces — rather than exclusively through retail distributors or wholesale partners.Learn more →
B2BBusiness-to-Business: A company that sells to other businesses rather than to individual consumers — typically involving longer sales cycles, multiple stakeholders, and a purchase decision built on ROI rather than impulse.Learn more →
SaaSSoftware as a Service: Software delivered as a subscription and accessed over the internet rather than installed and licensed outright. Its recurring-revenue model is why metrics like CAC, LTV, and churn matter more there than in most other business types.
Retainer: A recurring, ongoing engagement (usually monthly) covering an agreed scope of work, as opposed to a one-time, fixed-scope project. Priced for continuity and iteration, not a single deliverable.Learn more →
LSALocal Services Ads: Google’s pay-per-lead ad format for local service businesses — plumbers, HVAC companies, and similar — shown above standard search ads and priced per qualified lead rather than per click, with a Google Guarantee badge for verified providers.Learn more →

Marketing & AI Terms, Defined Plainly

Funnel & Metrics

SEO & Content

AI, GEO & AEO

Automation & Data

Business & Pricing

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