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Glossary A–Z

Terms starting with A

44 terms. Search all 545 terms →

Analytics

A/B Testing

A/B testing compares two versions of a page or element to see which performs better. It replaces guesswork with data to lift conversion rates reliably.Read definition →AI / GEO

AI Agent

An AI agent is a system that plans and takes actions to reach a goal, using tools with limited human input, rather than just answering a single question.Read definition →AI / GEO

AI Content Detection

AI content detection is the use of software to estimate whether text was written by a human or an AI model. Results are probabilistic, not proof, so use.Read definition →AI / GEO

AI Crawler

An AI crawler is a bot that gathers web content to train AI models or answer live queries. Whether it can read your site directly shapes your AI visibility.Read definition →AI / GEO

AI Guardrails

AI guardrails are the rules and filters that keep an AI model's output safe, accurate, and on brand. They prevent harmful, off topic, or false responses.Read definition →AI / GEO

AI Hallucination

An AI hallucination is when a model states false information as if it were fact. It is why AI output always needs a careful human review before you trust it.Read definition →AI / GEO

AI Overview

An AI Overview is Google's AI-generated summary at the top of search results. It answers directly and cites sources, reshaping how websites earn clicks.Read definition →AI / GEO

AI SEO

AI SEO uses artificial intelligence to improve search visibility and optimizes content so it gets cited by AI answer engines like ChatGPT and Google Search.Read definition →AI / GEO

AI Search

AI search uses large language models to answer queries in natural language, blending web results into a conversational reply instead of a plain link list.Read definition →AI / GEO

AI Visibility

AI visibility is how often and how prominently a brand appears in answers from AI tools like ChatGPT and Google AI Overviews. It is the new front page.Read definition →Web Development

AJAX

AJAX is a technique for loading data in the background so a page can update without a full reload. It makes web apps feel fast, smooth, and genuinely app-like.Read definition →Web Development

API

An API is a defined way for two software systems to communicate and share data. APIs let your site connect to the tools you already run, from payments to CRM.Read definition →Web Development

API Endpoint

An API endpoint is a specific URL where an application sends requests to access data or features. Endpoints are how modern apps and services talk to each other.Read definition →Web Design

ARIA

ARIA is a set of HTML attributes that make web content accessible to assistive technologies like screen readers. It widens reach and cuts legal risk.Read definition →Web Design

Above the Fold

Above the fold is the part of a web page visible without scrolling. What sits above the fold shapes first impressions and drives clicks and conversions.Read definition →Web Design

Accordion

An accordion is a set of stacked headers that expand and collapse to show or hide content. It lets a page present a lot of information compactly and on demand.Read definition →PPC

Ad Assets

Ad assets are extra details like sitelinks, callouts, and images added to ads to make them bigger and more useful. They lift clicks at no extra cost.Read definition →PPC

Ad Copy

Ad copy is the written text of a paid ad, including headlines and descriptions, crafted to grab attention and persuade the reader to click and convert.Read definition →PPC

Ad Exchange

An ad exchange is a digital marketplace where ad impressions are bought and sold in real-time auctions. It connects advertisers to inventory across many sites.Read definition →PPC

Ad Fatigue

Ad fatigue is the drop in performance when an audience sees the same ad too often. Catching it early with fresh creative protects budget and campaign results.Read definition →PPC

Ad Group

An ad group is a container inside a campaign that holds a set of related keywords and the ads that target them. Tight ad groups lift relevance and score.Read definition →PPC

Ad Rank

Ad Rank is the value Google uses to decide an ad's position and whether it shows at all. A higher Ad Rank can win top spots without the highest bid.Read definition →PPC

Ad Relevance

Ad relevance measures how closely your ad matches keyword intent. As part of Quality Score, it influences your ad position and the cost you pay per click.Read definition →PPC

Ad Rotation

Ad rotation controls how Google Ads serves multiple ads in an ad group. The mode you pick balances fair creative testing against pushing your best performers.Read definition →PPC

Ad Scheduling

Ad scheduling, or dayparting, controls which days and hours your ads run. It concentrates budget when buyers are active and trims spend during dead hours.Read definition →Web Design

Affordance

An affordance is a visual cue that signals how an element can be used, like a button that looks clickable. Clear affordances make sites easy to act on.Read definition →AI / GEO

Agentic AI

Agentic AI is AI that can plan and take multi-step actions toward a goal with little human input. It moves AI from answering to actually doing tasks.Read definition →Tech Stack

Ahrefs

Ahrefs is an SEO toolset known for deep backlink and keyword research data. Ahrefs shows who links to competitors so you can build authority and rank.Read definition →SEO

Algorithm Update

An algorithm update is a change to Google's ranking systems that can reshuffle search results. Quality content is the best defense against the swings.Read definition →SEO

Alt Text

Alt text is a written description of an image, used by screen readers and search engines. Alt text serves accessibility and SEO at once.Read definition →SEO

Anchor Text

Anchor text is the clickable, visible words of a hyperlink. Anchor text shapes how search engines understand your links. Descriptive internal anchors pass.Read definition →AI / GEO

Answer Engine Optimization

Answer engine optimization shapes content so answer engines and AI assistants surface your business directly, not just in a traditional list of blue links.Read definition →Web Design

Aspect Ratio

Aspect ratio is the proportional relationship between the width and height of an image, video, or screen. It keeps media crisp and prevents layout shift.Read definition →Analytics

Assisted Conversion

An assisted conversion is one where a channel supported the journey but was not the final click. It reveals the upper-funnel channels that quietly drive sales.Read definition →Tech Stack

Astro

Astro is a modern web framework for building fast, content-focused websites. Frameworks like Astro deliver the near-instant load times that improve both.Read definition →Web Development

Async/Await

Async/await is JavaScript syntax that makes asynchronous code read like simple step-by-step lines. It simplifies data fetching, waiting, and error handling.Read definition →Web Design

Atomic Design

Atomic design is a methodology for building interfaces from the smallest parts upward. It brings consistency and reuse and gives teams a shared design language.Read definition →Analytics

Attribution

Attribution is the practice of assigning credit for a conversion to the marketing touchpoints that led to it.Read definition →PPC

Attribution Window

An attribution window is the time span in which a conversion can be credited to an ad. It shapes reported ROI, so matching it to your sales cycle matters.Read definition →Web Development

Authentication

Authentication is the process of verifying that a user is who they claim to be. It is the front door of security, protecting accounts and sensitive data.Read definition →Web Development

Authorization

Authorization is the process of deciding what an authenticated user is allowed to do. It enforces permissions so people only ever access what they truly should.Read definition →PPC

Automated Bidding

Automated bidding lets Google set bids for you based on campaign goals. It removes manual guesswork and adjusts bids at a scale no person could match.Read definition →Analytics

Average Position

Average position is the mean rank a page or ad holds in search results across impressions. It gives a quick, directional read on your search visibility.Read definition →Analytics

Average Session Duration

Average session duration is the mean time visitors spend on a website per visit. It signals how well your content engages and holds visitor attention.Read definition →