Glossary of digital marketing, AI-search and growth engineering

An experiment that randomly splits traffic between control (A) and variant (B) for a statistical comparison.

A documentation format that captures the context, options, decision and trade-offs of a software architecture choice; standard for vendor decisions in a composable stack.

The IAB transparency standards in which authorized ad sellers (ads.txt) and the publishers SSPs represent (sellers.json) are declared; they prevent domain spoofing and unauthorized reselling.

The summary-answer block generated by Gemini that appears at the top of Google's search results page. When an AI Overview appears on a query, traditional blue links get pushed far below the fold; consequently, being cited inside the Overview is usually more valuable than being ranked first on the page.

An umbrella for techniques that automatically flag values outside the expected range in time-series metrics (KPI, conversion, latency, fraud signal). Tools include STL decomposition, Prophet, isolation forests and neural OoD models; the brain behind alerting and observability dashboards.

A content approach that gives the answer to a question in the first sentence of the paragraph, then opens supporting context. Because LLMs weigh 'top-of-chunk' position heavily, keeping the TL;DR at the top of the piece directly boosts GEO performance.

Google App Campaigns (UAC) is a single campaign type that automates Search, Display, YouTube and Play inventory for app installs and in-app actions. ML mixes creative assets; runs against tCPA or tROAS targets.

Apple Search Ads; ads shown on App Store search results; the Search Match → exact pipeline is built.

App Store Optimization; the discipline of optimizing organic visibility and conversion across the App Store + Google Play.

The model that decides which touchpoint a conversion is attributed to; variants include last-click, first-click, DDA, MTA.

A testing approach that makes decisions over probability distributions; produces intuitive outputs like 'probability the variant wins'.

Access to new features opened to the partner ecosystem before public launch; provides early feedback + competitive advantage.

Total revenue across channels divided by total media spend; less biased than channel-level ROAS.

A systematic map of the relationships between master brand + sub-brand + endorsed brand + product naming; chosen from Branded House / House of Brands / Endorsed / Hybrid models.

SEO + PR + Wikipedia + Knowledge Graph work that ensures the brand's owned/positive results dominate the first page — including satellite pages — for brand name searches.

A pyramid summarizing a brand across functional benefits → emotional benefits → values → essence layers; the one-page summary for all communication.

The rate at which a brand is remembered in the consumer's mind when a category or need is mentioned; measured as unaided and aided recall.

The standards and tools (IAS/DV) and publisher editorial policy that govern ads being served in acceptable context (no violence/abuse/disinformation).

In Byron Sharp's 'How Brands Grow' theory, a brand's capacity to come to mind easily at the moment of purchase; a combination of mental availability + physical availability.

The guide that defines a brand's character, tone, word choice and sentence rhythm in written and spoken communication; includes writing guide + examples + banned word list.

The widest match type in Google Ads — captures any query that fits the keyword's intent. Paired with Smart Bidding it opens long-tail opportunity; run in isolation it scatters spend — negatives and audience signals are critical.

Customer Acquisition Cost — total marketing + sales spend divided by the number of new customers acquired. A healthy CAC stays below one-third of LTV (LTV/CAC > 3); the blended (all-spend) and paid-only variants drive different decisions. Managed alongside payback period.

A situation where two or more pages serving the same intent compete for the same query. Both pages rank lower and Google becomes uncertain which to show; resolved by consolidation or intent separation.

The <link rel="canonical"> meta that points search engines to the "primary" URL of identical or near-identical content. Consolidates signal across filtered categories, parameterised URLs, AMP/mobile alternates and syndicated copies; misuse can cause index hijacking.

Meta's server-to-server event API running in parallel to the Pixel. Recovers the 20-40% of conversion signal lost in the browser due to ITP and ad-blockers; deduplication requires every event to carry an event_id and matching timestamp. A foundation of any modern paid-social stack.

A strategy of defining and owning a new category instead of competing in the existing one; shifts focus from 'who are we, who's our competitor' to 'what problem do we solve'.

A network that caches static (and increasingly dynamic) content on geographically distributed edge nodes. Lowers TTFB and LCP, shields origin from DDoS and traffic spikes. Cloudflare, Fastly, Akamai, AWS CloudFront — table stakes for any modern stack.

Customer Data Platform; the system that unifies user profiles and exposes them to activation channels (Segment, mParticle, warehouse-native).

A team x platform x certification level x validity table; kept visible with expirations, renewal dates and backup expert capacity.

An agency or expert that has passed the platform's official certification exam for a specific product + module; provides standard support and documentation access.

The communication + training + support operation that helps internal stakeholders and employees adopt a rebrand / repositioning; brand ambassador + runbook + quarterly review.

Shopify's post-checkout.liquid customization layer; UI extensions (React), Functions (Rust/JS), branding API, post-purchase extension + Shop Pay compatible.

The percentage of users leaving the active customer base in a given time window. In subscription businesses it hits MRR directly; in e-commerce it is the inverse of repeat rate. Split into voluntary (cancelled) and involuntary (payment failure); reduced via onboarding, pricing and lifecycle messaging.

The probability that a user will leave the active base in the next N days — computed by an ML model (logistic regression, gradient boosting, survival analysis) on RFM, product-usage, payment and engagement signals. The basis for prioritising win-back and VIP communication.

The URL or institution name a generative engine bases its answer on and often displays visibly. A score like 'the 2nd citation on Perplexity' is the GEO equivalent of the classic 'what's your organic ranking' question; it is the primary metric for measurement.

A Core Web Vital that scores the cumulative unexpected layout shifts during page load. Below 0.1 is "good"; the usual offenders are images without dimensions, late banners and web-font swaps. Fixed with width/height, reserved space and font-display.

A group of users that share a defining property (signup date, acquisition channel); their behavior is analyzed over time.

The decline over time in activity or revenue contribution of a cohort of users acquired in a given period. In healthy products the curve flattens at some point (plateau); a cohort that decays without bottoming out is the most reliable signal of missing product-market fit.

A composable commerce engine; API-first + MACH compliant, and one of the most widely used engines in enterprise B2B + B2C scenarios. commercetools Frontend + Studio ecosystem available.

A commerce architecture composed of best-of-breed vendors per function instead of a single monolithic platform; engine + CMS + search + payment + identity as separate services.

Google's TCF 2.2 compliant consent signal mechanism; ad_user_data + ad_personalization states.

A conversion API that platforms like Meta, TikTok and LinkedIn receive directly from the server. Preferred over browser-based pixels; more reliable, more complete signal.

The share of users who complete a defined goal; calculated with formulas like transactions / sessions or signups / visits.

The three-metric set Google uses to measure user experience: LCP (largest content paint), INP (interaction response time) and CLS (visual shifts). Directly factors into rankings.

The media cost of winning one conversion. 'Blended CPA' covers all channels combined; 'paid CPA' only paid media. Mixing them leads to wrong decisions.

Custom Product Pages (iOS 15+); 35 different landing page variants for a single app, tailored by traffic source.

The total crawling capacity Googlebot allocates to your site. Determined dynamically by server speed, site authority and content freshness; when wasted, critical pages get indexed late.

The decay in CTR, CVR and engagement caused by repeatedly serving the same creative. Managed with frequency caps and creative rotation; without a performance model, frequency above 4-7 is the standard alarm threshold and should be reviewed weekly on Meta accounts.

Shipping a near-empty HTML shell + JS bundle and rendering in the browser. Typical mode for SPAs; first paint is slow and SEO needs additional route prerendering. LCP degrades sharply on poor networks or low-end devices.

The process of rebuilding a brand's global communication around the target market's language, visual code, sense of humour and cultural references. Beyond pure translation — it adjusts message fit, colour meaning, name connotations and social norms.

An audience built by hashing first-party lists (email, phone, mobile ad ID) uploaded to an ad platform. Meta Custom Audience, Google Customer Match — used for retargeting, exclusions and as a LAL seed.

Using a hashed first-party list (email, phone, mailing address) as a targeting/exclusion audience across Google Search, YouTube and Display. The base for lookalike seeds and win-back; the minimum match rate to be useful is typically 30%+.

A secure compute environment where two parties (e.g. brand + media platform) can match and aggregate without exposing each other's raw PII. Google Ads Data Hub, Amazon AMC, Snowflake/Databricks clean rooms — used for overlap analysis, attribution and audience building.

The combined disciplines of data quality, access, stewardship and compliance; RBAC + audit log + data contracts are standard.

The cloud data store where raw and modelled event data live (BigQuery, Snowflake, Redshift, Databricks).

Data build tool — an SQL-based, versioned, testable data transformation framework; the standard of analytics engineering.

GA4's machine-learning-based attribution model. It assigns marginal contribution to each touchpoint; far more realistic than classic last-click.

A unique identifier that defines the publisher + buyer + inventory + price combination in a PMP/PG agreement; merges programmatic with direct sales, and pacing and reporting hinge on it.

The rate at which messages actually reach the inbox; managed via SPF/DKIM/DMARC/BIMI + reputation monitoring.

Google's visual-first performance format unifying YouTube, Discover and Gmail inventory in one campaign. Successor to Discovery Ads; uses social-style creatives to feed upper-mid funnel and measures attribution via GA4.

A single source of truth for design and development, combining token + component + pattern + guideline + governance layers.

Expressing design decisions like color, typography, spacing and motion as platform-agnostic variables; distributed from a single source via Figma Variables + Style Dictionary + code pipeline.

Brand-owned, consistent, proprietary codes like logos, colors, characters, jingles and slogans; the codes that let a consumer recognize the brand in 3 seconds (Ehrenberg-Bass framework).

Experience, Expertise, Authoritativeness and Trustworthiness. Google's quality evaluation framework; decisive for YMYL topics, supportive in other areas.

A lightweight compute layer running inside the CDN itself (Cloudflare Workers, Vercel Edge, AWS Lambda@Edge). Performs geo-routing, A/B test bucketing, header manipulation and auth in milliseconds without going back to the origin; near-zero cold start.

A runtime that executes code on the CDN node geographically closest to the user; Cloudflare Workers, Vercel Edge and Shopify Oxygen are the main examples. Minimizes latency with global consistency.

The Apple/Google editorial team presenting the app in the 'App of the Day' / 'Featured' showcase; applied to via pitch.

A measurement layer in Google Ads that ties a conversion to a user via hashed first-party data (email, phone). Recovers 3-15% of attribution lost to ITP and cookie decay; ships in web and lead-form variants.

The semantic network that defines your brand as interconnected entities: 'Company X operates in sector Y, is founded by person Z, offers product W'. LLMs reason from this relationship map rather than raw text; if the graph is fragile, the answer comes out distorted.

The EU accessibility directive in force on 28 June 2025; mandates WCAG 2.2 AA for e-commerce, banking, transport and telecom.

Written, versioned definition of event names, properties, data types and owners; stored in the schema registry.

The moment the browser paints the first meaningful content (text, image, SVG) on screen. Critical for the "something's loading" perception; good is below 1.8 s. Inlining critical CSS and deferring render-blocking JS are the key levers.

A mechanism that allows a feature to be turned on/off without code changes; the backbone of testing and continuous delivery infrastructure.

Consented segments produced from the publisher's own reader data (behavior, content, registration); sold to advertisers via Deal ID using a sell-side CDP.

Cookies set by the site's own domain and only sent on its own page requests. After third-party cookies were blocked, ITP further capped this category — server-side cookie setting + 1y+ rotation policy is now essential.

Data the brand collects directly from its own properties (web, app, CRM, call centre, email, membership) under user consent. The most defensible fuel for performance marketing post-third-party-cookie; hashed and activated into ad platforms.

The minimum CPM a publisher accepts for an impression; set statically (unified pricing rules) or dynamically (Sibbo/Nobid/Assertive) based on the bid landscape.

The upper limit of messages sent to a user within a time window; prevents channel fatigue.

The sequential representation of the steps a user takes toward a goal; each step is measured by its drop-off rate.

A server-to-server protocol that sends events directly to GA4 over HTTP. Generates conversion signal from environments without a web pixel (CRM, IoT, app server); authenticates with api_secret + measurement_id and is wired to respect Consent Mode.

Users now get answers not from Google but from generative search engines like ChatGPT / Perplexity / Gemini. GEO is the applied discipline that ensures the brand appears inside those AI-generated answers as a correct, frequent and preferred source.

The discipline of correcting a case where the LLM produces false information about the brand — at the source: Wikipedia / Wikidata edit, an 'authoritative correction' block on your own site, errata in a third-party publication. Model answers update within 60-90 days of the correction spreading.

A personally identifiable value (email, phone, name) frozen via a one-way cryptographic function (usually SHA-256). Mandatory for matching, custom-audience upload and Enhanced Conversions on ad platforms — a privacy and compliance requirement.

An auction model in which the publisher calls multiple SSPs/exchanges simultaneously and sends the highest bid to the ad server; runs client-side (Prebid.js) or server-side (Prebid Server).

Decoupling the frontend (presentation) from the backend (commerce engine / CMS) through APIs; lets the frontend run on any framework + runtime.

A tool that visualises the intensity of user interactions on a page (clicks, scrolls, hovers, attention) with a colour palette. Generated by Hotjar, Microsoft Clarity, Mouseflow and similar; in CRO it sources hypotheses, never on its own a decision — must be validated with an A/B test.

The <link rel="alternate" hreflang="x"> directive that tells search engines about language/region variants of the same content. In a multilingual architecture it preserves canonical distribution, avoids ranking in the wrong language and self-cannibalisation; deployed reciprocally with an x-default.

The process by which server-rendered HTML is 'brought to life' by JavaScript in the browser. Slow hydration breaks INP; if JS errors, content appears but becomes unclickable.

Shopify's React Server Components-based headless storefront framework (Hydrogen) and its edge deployment platform (Oxygen); runs on Storefront API + Customer Account API.

Incremental Ad-stock Effect — the lasting downstream impact (brand search, organic, direct) generated by a marginal increase in a channel's spend. An anchor value when calibrating MMM and geo-experiments; the main mechanism for measuring halo effect.

A hypothesis prioritization framework using Impact-Confidence-Ease or Potential-Importance-Ease criteria.

A relational graph that links one person across their devices, email, phone, payment identifier and hashed IDs. Foundation for cross-device attribution, retention modelling and LAL seed quality — the heart of any CDP.

Linking user activity across devices and channels to a single identity; deterministic + probabilistic.

The extra revenue/behavior an automation produces compared to a control group; the real success measure of retention experiments.

The extra conversion that wouldn't have happened without a channel; measured via geo-holdout tests, independent of attribution.

The set of attributes that decide whether a URL is eligible to enter Google's index: meta robots, canonical, hreflang, status code, content quality and crawl accessibility evaluated together.

Organizing a product's content and functions to match users' mental models; validated with card sort + tree test.

A Core Web Vital that replaced FID in 2024 — measures the longest delay across all the user's interactions on the page. Below 200 ms is "good"; the usual culprit is heavy JS blocking the main thread, fixed via code-splitting, off-thread work and main-thread budgeting.

The peak time between a user interaction and the next processed frame (Core Web Vitals); < 200ms is good. The successor to FID as of 2024.

The classic PageRank algorithm simulated across your site's internal link structure. Measures how much authority each page accumulates from your own site; authority flow directly impacts ranking power.

Rebuilding statically built pages in the background at intervals or via triggers; combines static speed with fresh data.

A framework for defining the concrete job a user is trying to get done with a product; behavior- and context-focused, instead of personas.

The most common structured-data syntax — schema.org markup carried as JSON inside a <script type="application/ld+json"> block. Decoupled from the HTML, friendly to server-side rendering, and Google's recommended format.

The structure in which brand, non-brand, long-tail and competitor conquest keywords are mapped with difficulty + CPI scores.

Klaviyo's top agency tier; requires Data Platform + advanced segmentation expertise and is maintained with annual certification renewals.

The hierarchical tree of metrics that cascade down from a core business output; every node is a decision trigger.

The moment the page's main visual content becomes visible to the user (Core Web Vitals); < 2.5s is good. Controlled at the design stage with font + image + render budgets.

A Core Web Vital that measures when the viewport's largest element (image, video poster, big text block) becomes visible. Under 2.5 s is "good"; improved with CDN, modern image formats (AVIF/WebP), preload hints and reducing render-blocking CSS.

LCP is the time for the largest content element to appear (<2.5s), INP is interaction response time (<200ms), CLS is visual shift during load (<0.1). All three must be 'good'; if one is bad, the template's CWV is considered failing.

A bid strategy that targets long-term customer value rather than first purchase. Customer-value signals from Shopify, CRM or CDP are piped to the algorithm; LTV/CAC is optimized instead of CAC.

The staged customer journey like welcome → activation → repeat → retention → winback; different messaging and offers per stage.

The app's live update calendar (seasonal, feature, campaign); app store + player/user engagement.

A plain text file placed at the root of your site that tells LLM crawlers 'here are this brand's most critical pages, canonical definitions and citable sources'. The AI-era counterpart of robots.txt; not yet a formal standard but read by major actors, Anthropic among them.

A prospecting audience that ML-derives behavioural twins of an existing customer seed list (CRM, conversion pixel, app events). Tunable on Meta within a 1-10% similarity band; quality scales with seed signal cleanliness.

A customer's total lifetime value; gross margin x retention x order frequency x basket value.

Acronym for Microservices + API-first + Cloud-native + Headless; the framework for composable commerce architecture, defined by the MACH Alliance.

Meta's agency + technology partner program; includes Advantage+, CAPI and Marketing API beta access plus partner-manager support.

A system for adding structured custom data to products, collections, customers and orders; metaobjects define standalone custom types usable as blocks in the theme.

A Bayesian-statistics model that estimates channel contribution; requires 18-24 months of historic data.

An adaptive testing approach that dynamically shifts traffic to the winning variant during the experiment, instead of a classical A/B split. Minimises total regret; ideal for design/recommendation/banner tests with quick wins, less so for precise effect measurement.

An experiment that tests combinations of multiple elements simultaneously; requires high traffic.

The share of total conversions that come from new customers; a critical optimization target for Pmax and Advantage+.

The engine that recommends the best real-time action (product, offer, channel, message) for each customer; a recommender + rule engine combination.

The process of feeding back conversions that happen in CRM (lead-to-sale, call closure, store visit) to the ad platform via the click ID (gclid/wbraid/fbclid). The most reliable way to feed tROAS with real revenue.

Shopify's 2021 theme architecture; JSON templates, Section Rendering API, app blocks and a metafield-first approach enable section-based editing across all pages.

The coordination of cross-channel message flow under frequency capping + priority rules + suppression.

Google's free tool that measures a URL's performance both in lab (Lighthouse) and field (CrUX real-user data). Separate mobile and desktop reports; the reference for CWV pass/fail and remediation hints. Most teams pipe the weekly trend into Looker Studio.

An account manager assigned on the platform side; handles escalation, roadmap briefings, beta pilot selection and co-marketing coordination.

The level hierarchy in partner programs (e.g. Member -> Select -> Premier -> Elite); determined by spend + certifications + customer success thresholds.

The time it takes to earn back CAC; the core indicator for cash-flow planning, typically 6-18 months.

Google Ads' product that combines all inventory into one campaign. Optimization points are feed + asset + audience signal + incrementality testing; 'black box' control runs on these 4 levers.

Personally Identifiable Information; data that identifies a person (email, phone, IP, device ID). Managed under tagging + retention.

A client-side JS snippet placed by an ad platform (Meta, TikTok, LinkedIn, etc.) to measure on-site interaction and conversion. Insufficient on its own due to ITP and cookie limits — supplemented with server-side events (CAPI, sGTM).

Google Play Console's built-in A/B testing engine for store listings and in-app content. Runs asset-level (icon, screenshot, short description) or feature-level tests; measures install conversion directly and forms the data-driven backbone of ASO.

Private Marketplace and Programmatic Guaranteed; programmatic sales models in which the publisher sells premium inventory / audiences to selected buyers via Deal ID.

The strategic document defining which category the brand plays in, against whom, and why it will be chosen in the target audience's mind; includes manifesto + value proposition + differentiation.

Premium Publisher Optimization — the automation approach that finds the highest CPM for a publisher's inventory through a mix of header bidding, deal IDs, PMP and open auction. Managed alongside floor price strategy, vendor selection and viewability targets.

The top tier in the Google Ads partner program; awarded annually to agencies that clear spend + certification + performance thresholds, granting beta + partner-manager access.

Google's suite of Chrome APIs designed to enable ad measurement, retargeting and fraud detection without third-party cookies: Topics, Protected Audience (FLEDGE), Attribution Reporting. The Google side of the cookieless future.

A fixed list of 50–300 prompts that your target audience actually asks generative engines and that you want your brand to appear in. Run weekly against the dashboard, it's how visibility / citation / tone metrics are reported.

A React 18+ component model rendered on the server that ships no JS to the client; Next.js App Router + Shopify Hydrogen use it natively, lowering bundle + hydration cost.

The percentage of acquired users still active in a given time window (D1, D7, D30, M1, M3). In SaaS and mobile games it is a direct read on product-market fit; a cohort curve that flattens out is the signature of a healthy product.

Commission, rebate or Market Development Fund received by a partner from the platform; reported transparently to the client each quarter at Roibase.

Pushing data from the warehouse to operational tools (Meta, Google, Klaviyo); Census, Hightouch are typical vendors.

Recency, Frequency, Monetary — the classic 3 dimensions of customer value; the foundation of scoring in modern retention.

Scoring customers on Recency (last purchase date), Frequency (cadence) and Monetary (total spend) and bucketing them into behaviour-based cohorts. The canonical engine for win-back, VIP, dormant lifecycle signals; foundational CRM/CDP module.

Request for Proposal (question set) -> Proof of Concept (4-6 week test) -> Weighted Scorecard (weighted scoring); the objective trio for vendor selection.

The ratio of revenue produced by media spend to that spend. ROAS alone is not a performance measure; unless margin and LTV are integrated, high ROAS can mean low profitability.

A plain-text file at the site root that tells crawlers which paths they may crawl. Carries per-user-agent Allow/Disallow directives, the Sitemap reference and — increasingly — AI-crawler hints like LLM-Content; a wrong Disallow can deindex pages.

The minimum number of users required per variant for an A/B test to reach a statistically reliable conclusion. Computed from power, alpha (usually 0.05), baseline conversion and MDE; an undersized sample inflates both false-positive and false-negative risk.

A structured-data format that makes page content machine-readable. The foundational signal for rich-result eligibility, entity disambiguation and LLM citations.

Apple Search Ads' automatic matching mode; used as a keyword discovery source, then promoted to exact.

An analytics environment where business units answer their own questions without waiting on the data team; delivered via Metabase, Lightdash, Hex.

The technique of splitting long-form content into paragraph/section units — with topical coherence preserved — that an LLM can cite as a 'single-breath answer fragment'. Well-chunked content always earns more citations than a poorly structured 5,000-word blog post.

The shared metric definitions + business logic layer behind the BI tool; implemented with LookML, Metabase models, Cube and similar.

A testing framework where results can be monitored continuously and early stopping is statistically safe.

A measure of daily fluctuation intensity in Google rankings. High volatility typically signals an algorithm update; tracked via tools like Semrush Sensor and Mozcast.

Conversion events sent to the ad platform via API from your own server (sGTM, own backend) rather than from the browser. Immune to ad-blocker and browser caps; works with specs like CAPI (Meta), GA4 MP, TikTok Events API.

Event tracking performed on the server rather than the browser. It preserves signal integrity against iOS 14, ad-blockers and cookie erosion; the cornerstone of modern performance infrastructure.

A tool that anonymously records a user's site session (mouse movement, clicks, scroll, form input) and lets you replay it like a video. Hotjar, FullStory and Microsoft Clarity lead the space; PII masking and consent are critical concerns — invaluable for CRO debugging.

Server-side Google Tag Manager — a proxy that takes the browser GTM payload, sanitises and enriches it, then fans out to multiple destinations (GA4, Meta CAPI, TikTok, etc.). Extends cookie lifetime, resists ad-blockers and is the backbone of server-side conversion APIs.

Your brand's visibility rate relative to competitors' visibility rates, weighted across an industry-specific prompt pool (e.g. 200 critical queries). It is the 'market share' metric of GEO and is tracked month over month.

Shopify's accelerated checkout + wallet product; enables 1-click purchase even on a random store, visibly lifting mobile CR; PCI + 3DS2 compliant.

A Plus feature that enables B2B operations inside a single store with company accounts, catalogs, quantity rules, price lists, PO/net-terms and custom pricing scenarios.

A no/low-code automation platform; trigger (order, customer, inventory) + condition + action (tag, webhook, email) automates repetitive Admin-side work.

Shopify's Rust/JavaScript-based serverless extension layer that retired Scripts; runs Discount, Delivery, Payment and Cart Transform scenarios deterministically and fast.

A Plus feature that manages multi-market (language, currency, domain, payment, shipping) from a single store; with Markets Pro, duty + tax + local payment are fully automated.

Shopify's enterprise-level partnership program; provides access to the Plus merchant success team, Checkout Extensibility early access, and Hydrogen + Oxygen priority support.

Shopify's SQL-like analytics query language for Plus stores; enables custom reports + dashboards via Admin + Liquid + API.

A single question measuring perceived task difficulty on a 1-7 scale right after a task; a task-level complement to SUS.

Service Level Agreement (uptime + support), Data Processing Agreement (KVKK/GDPR), Exit Clause (exit terms + data portability) — the enterprise contract trio.

Google Ads umbrella for ML bidding strategies that bid per-auction using real-time signals (device, location, user signal, time): tCPA, tROAS, Maximize Conversions, Maximize Conversion Value. Quality scales with the conversion signal.

The brand embodied as sound; a short (1-3s) melody / sonic signature + extended audio palette (podcast intro, video ident, UI SFX).

A meaningful drift between the actual traffic split (e.g. 49.2/50.8) and the expected 50/50 in an A/B test — usually a sign of a technical bug. If a chi-square test gives p<0.001, the results are unreliable; root causes include bots, redirect loss and cookie leakage.

Rendering HTML on the server and shipping it ready-to-paint to the browser. Beats CSR on SEO and LCP; the default mode of frameworks like Nuxt 3, Next.js and Remix. At scale it needs edge caching and a thoughtful hydration strategy.

An HTTP cache strategy that serves stale content instantly while fetching a fresh version in the background. A balance of speed + freshness.

The probability that an A/B test detects an effect (lift) that actually exists. Standard target is 80% power; smaller effects need either a larger sample size or a redefined minimum detectable effect (MDE). A pre-test power calculation is non-negotiable for sound experiment design.

Shopify's public GraphQL API; lets headless / custom frontends / mobile apps access product + collection + cart + checkout data.

A tool for developing, documenting and QA'ing components in isolation; with MDX, design-dev handoff documentation stays live.

A render mode where the page's HTML is streamed from server to client piece by piece as it becomes ready, rather than all at once; TTFB and LCP drop.

Markup that makes page content machine-readable using the schema.org vocabulary. A prerequisite for rich-result, AI Overviews and voice eligibility; the most common carrier is JSON-LD, validated in Search Console's Rich Results report.

A tiered access system that routes readers to paid membership using either a free-content limit (metered) or a dynamic propensity model (propensity-based).

The cleanup of supply paths from buyer to publisher (duplicate bidders, reseller layers) and the selection of the most efficient routes; publisher net revenue rises and buyer margins improve.

A 10-item standard questionnaire that scores interface usability between 0-100; > 68 is above average, > 80 is the excellence threshold.

Smart Bidding strategy that drives conversions at or near a target average cost per acquisition. Requires sufficient historical conversion data and a realistic target; volatile on low-volume accounts.

Smart Bidding strategy that bids to hit a target return-on-ad-spend. Requires conversion value tracking and accurate margin/value signal; performance improves when enriched with offline conversion + value upload.

The IAB Europe Transparency & Consent Framework version mandatory since 2024. Standardises the consent signal between publisher, vendor and user; CMPs (OneTrust, Cookiebot, Didomi) deliver mandatory compliance together with Google Consent Mode v2.

Shopify's official Liquid + JSON + Schema linting tool; scans theme code against best-practice + performance + security rules and is used as a mandatory CI gate.

The aggregate signal that shows your site's expertise depth on a particular topic cluster. A result of pillar/cluster architecture, internal link density and E-E-A-T components.

The time from the browser sending the HTTP request to receiving the first byte. Not a CWV itself but the floor for LCP/INP; kept low by serving from a CDN near the origin, edge caching and removing unnecessary redirects. Under 800 ms is healthy.

Universal App Campaigns — Google's app-install + in-app action format that automates Search, Display, YouTube and Play inventory in a single campaign. ML mixes the assets; runs against tCPA or tROAS targets and is the standard tool of any mobile paid stack.

A bidding approach that assigns each conversion a real margin or LTV-proxy value rather than counting them equally. The prerequisite that makes tROAS meaningful — fed by value upload, dynamic value or CRM-bound value rules.

The MRC standard under which at least 50% of an ad impression stays visible on the user's screen for 1 second (display) or 2 seconds (video); the advertiser's value criterion.

A consistent system made of logo + logo variants + color + typography + iconography + illustration + photography + grid + motion + templates.

Automatically verifying with Chromatic / Percy / Playwright that UI components look the same after code changes; prevents design drift.

Web Content Accessibility Guidelines 2.2; success criteria at A, AA and AAA levels; 9 new criteria (2023) focused on keyboard, focus, drag and target size; AA is the industry baseline.

A communication flow targeting customers who have not purchased for a defined period (typically the RFM "dormant" segment). Reactivates with a personalised discount, a "missed you" message or a new-collection hook; success measured by reactivation rate and incremental LTV.

An XML file listing the site's indexable URLs along with last-modified time and change frequency for search engines. Large sites combine sitemap index files with hreflang annotations; the file is referenced from robots.txt.

The data warehouse (BigQuery/Snowflake) that unifies a publisher's impression-level + subscriber-level revenue data; the single source of truth for finance, yield, editorial and sales reporting.