AdTech & Programmatic Glossary
Advertising technology infrastructure — programmatic buying, DSPs, SSPs, measurement, attribution, and privacy-first targeting.
Ad Attribution
The process of identifying which advertising touchpoints contributed to a conversion, assigning credit across channels, campaigns, and creatives to understand what drove the user's decision to convert.
Ad Creative Testing
The systematic process of evaluating different ad creative variations to determine which elements, messages, and designs produce the best performance across key metrics like click-through rate, conversion rate, and ROAS.
Ad Exchange
A digital marketplace that facilitates the buying and selling of advertising inventory between advertisers and publishers in real time, operating as a neutral auction platform connecting DSPs and SSPs.
Ad Fraud
Deceptive practices that generate fake ad impressions, clicks, or conversions to steal advertising revenue, including bot traffic, click farms, domain spoofing, and pixel stuffing. It costs the industry billions annually.
Ad Inventory
The total supply of advertising space available for purchase across a publisher's digital properties, measured in available impressions and categorized by format, placement, audience characteristics, and quality tier.
Ad Network
An intermediary that aggregates ad inventory from multiple publishers and sells it to advertisers as packaged audience segments or placement bundles, simplifying the buying process but adding a layer between buyer and seller.
Ad Placement
The specific location on a webpage, within an app, or during a video stream where an advertisement is displayed, significantly influencing viewability, engagement rates, and overall campaign performance.
Ad Server
A technology platform that stores, delivers, and tracks ad creatives, making real-time decisions about which ads to serve to which users and recording impression, click, and conversion data for reporting.
Behavioral Targeting
An advertising approach that targets users based on their past online behavior, including websites visited, searches performed, content consumed, and purchases made, to predict interests and purchase intent.
Bid Optimization
The use of algorithms and machine learning to automatically adjust advertising bid amounts for each auction opportunity based on predicted conversion probability, competitive dynamics, and campaign objectives.
Brand Safety
The practice of ensuring that advertisements do not appear alongside content that could damage the advertiser's reputation, such as hate speech, violence, misinformation, or other objectionable material.
Campaign Optimization
The continuous process of improving advertising campaign performance by adjusting targeting, bidding, creative, placements, budgets, and scheduling based on real-time data analysis and machine learning recommendations.
Connected TV
Television sets or devices connected to the internet that enable streaming content and addressable advertising, including smart TVs, streaming sticks, and gaming consoles, merging TV's reach with digital targeting precision.
Consent Management
The systems and processes that collect, store, and enforce user privacy preferences regarding data collection and advertising, ensuring compliance with regulations like GDPR, CCPA, and other privacy laws.
Contextual Targeting
An advertising targeting method that matches ads to the content of the page where they appear, using natural language processing to understand page topics, sentiment, and relevance without relying on user-level data.
Cookie Deprecation
The ongoing elimination of third-party cookies by major web browsers, fundamentally disrupting cross-site user tracking, behavioral targeting, frequency capping, and attribution measurement in digital advertising.
Cost Per Action
The price an advertiser pays when a user completes a specific desired action after interacting with an ad, such as a purchase, signup, or app install. Also called cost per acquisition (CPA).
Cost Per Click
The price an advertiser pays each time a user clicks on their ad, commonly abbreviated as CPC. It directly ties ad spend to user engagement and is the standard pricing model for search and performance advertising.
Cost Per Mille
The cost an advertiser pays for one thousand ad impressions served, commonly abbreviated as CPM. It is the standard pricing unit for display and video advertising across programmatic and direct buying channels.
Customer Data Platform
A software system that creates a persistent, unified customer database by collecting and integrating first-party data from multiple sources, making complete customer profiles accessible to marketing and advertising systems.
Data Clean Room
A secure, privacy-preserving environment where multiple parties can combine and analyze their datasets without directly sharing or exposing individual-level user data, enabling measurement and audience insights.
Dayparting
The practice of scheduling ad delivery to specific hours of the day or days of the week based on when target audiences are most active or most likely to convert, optimizing budget allocation across time periods.
Demand-Side Platform
A software platform that enables advertisers and agencies to purchase digital ad inventory across multiple ad exchanges through a single interface, using data and algorithms to optimize bidding and targeting decisions.
Digital Out-of-Home
Programmatic advertising displayed on digital screens in public spaces such as billboards, transit stations, malls, and airports, combining physical location targeting with automated, data-driven ad delivery.
Display Advertising
Visual-based online advertising that appears as banners, images, or rich media on websites and apps, purchased through programmatic auctions or direct deals to build brand awareness and drive user actions.
Dynamic Creative Optimization
An advertising technology that automatically assembles and optimizes ad creative in real time by testing different combinations of headlines, images, calls-to-action, and other elements to maximize performance for each user.
First-Party Data
Data collected directly from your own customers and users through your owned properties, including website behavior, purchase history, app usage, CRM records, and email engagement, with proper consent.
Frequency Capping
A control that limits the number of times a specific user sees a particular ad within a defined time period, preventing ad fatigue and wasted spend while maintaining a positive user experience.
Geo-Targeting
The practice of delivering advertising to users based on their geographic location, from broad country-level targeting down to specific zip codes, neighborhoods, or proximity to physical locations using IP and GPS data.
Header Bidding
A programmatic technique where publishers simultaneously offer ad inventory to multiple demand sources before calling their primary ad server, increasing competition and revenue by allowing all bidders to compete on equal footing.
Lookalike Audience
An audience segment created by finding new users who share similar characteristics and behaviors with an advertiser's existing customers or high-value user base, using machine learning to identify statistical patterns.
Media Buying
The process of purchasing advertising inventory across channels and platforms to reach target audiences, encompassing strategy, negotiation, execution, and optimization of ad spend across programmatic and direct buying methods.
Native Advertising
Paid advertising that matches the visual design, format, and function of the surrounding content on the platform where it appears, creating a less disruptive user experience than traditional display ads.
Pixel Tracking
A measurement technique that uses small, invisible image tags or JavaScript snippets embedded on web pages to track user behavior, ad impressions, conversions, and other events by firing HTTP requests to tracking servers.
Privacy Sandbox
A set of browser APIs developed by Google Chrome to enable advertising use cases like targeting, measurement, and fraud prevention without cross-site tracking, using on-device processing and aggregated data approaches.
Programmatic Advertising
The automated buying and selling of digital ad inventory using software platforms and algorithms, replacing manual negotiation with real-time, data-driven decision-making across display, video, and native channels.
Real-Time Bidding
An auction-based mechanism where individual ad impressions are bought and sold in real time as a user loads a page, with the entire bidding process completing in under 100 milliseconds per impression.
Retargeting
An advertising strategy that serves ads to users who have previously visited your website, used your app, or engaged with your content, aiming to re-engage them and drive them toward conversion.
Return on Ad Spend
A metric that measures the revenue generated for every dollar spent on advertising, calculated as revenue divided by ad spend. A ROAS of 4x means each dollar spent produces four dollars in revenue.
Server-Side Tracking
A measurement approach where conversion and event data is sent directly from the advertiser's server to advertising platforms via APIs, bypassing browser-based tracking limitations such as ad blockers and cookie restrictions.
Supply-Side Platform
A technology platform used by publishers and app developers to manage, sell, and optimize their advertising inventory across multiple demand sources, maximizing revenue per impression through automated auction mechanics.
Unified ID
An industry initiative to create a common, privacy-compliant user identifier that works across websites and platforms as an alternative to third-party cookies, typically based on hashed email addresses or authenticated login data.
Video Advertising
Digital advertising delivered in video format across streaming platforms, websites, social media, and connected TV, including pre-roll, mid-roll, outstream, and in-feed video placements with various pricing models.
View-Through Conversion
A conversion that occurs after a user sees an ad impression but does not click on it, measured within a defined attribution window. It captures the influence of ad exposure on subsequent conversion behavior.
Viewability
A metric that measures whether an ad had the opportunity to be seen by a user, defined by the IAB as at least 50% of the ad's pixels being visible in the viewport for at least one continuous second for display ads.