What is AdTech?

What is AdTech?

Tags
Computer Science
Tech
Interview
Software Development
Published
October 13, 2025
Author
Jason Kim

🧩 What “AdTech” Means

AdTech = Advertising Technology
It refers to the software and tools used to buy, sell, deliver, and measure digital advertising.
Think of AdTech as the “infrastructure” that connects:
  • Advertisers (companies that want to show ads)
  • Publishers (websites, apps, or social networks with ad space)
  • Users (the people seeing the ads)

🧠 Core AdTech Concepts

Term
What It Means
Example
Advertiser
The brand or business paying to show ads
Nike, Samsung
Publisher
The website/app showing the ad
YouTube, NYTimes.com
Ad Exchange
A digital marketplace where ads are bought and sold automatically
Google AdX
DSP (Demand-Side Platform)
A tool advertisers use to buy ad space across multiple sites
The Trade Desk, DV360
SSP (Supply-Side Platform)
A tool publishers use to sell ad space
Google Ad Manager
DMP (Data Management Platform)
Stores and analyzes audience data to target better
Lotame, Adobe Audience Manager
RTB (Real-Time Bidding)
Automated, auction-based buying of ad impressions
Happens in milliseconds behind the scenes
Programmatic Advertising
Automated buying/selling of ads via DSPs/SSPs instead of manual deals
“Programmatic display ads”

🌍 Where Major Platforms Fit

Now let’s locate Amazon Ads, Google Ads, Meta (Facebook + Instagram) Ads, etc. in this ecosystem.
Platform
Type
Description
Example Ad Placements
Google Ads
Search + Display Network + YouTube
You pay Google to show your ads on Google Search, YouTube, and millions of partner sites/apps.
Search results, YouTube videos, banner ads on websites
Meta Ads (Facebook + Instagram)
Social Advertising Platform
You target users based on interests, behaviors, or demographics on Meta platforms.
Instagram Feed, Stories, Facebook Feed
Amazon Ads
E-commerce + DSP
You advertise products directly on Amazon search results or product pages. They also have a DSP for off-Amazon display ads.
“Sponsored Products” in Amazon search, display ads on other sites
TikTok Ads
Social Video Platform
Video-based ads shown between or blended with user content.
In-feed videos
LinkedIn Ads
Professional Network Advertising
B2B targeting based on job title, company, industry.
Feed posts, sidebar, message ads

⚙️ How They Differ Technically

Feature
Google Ads
Meta Ads
Amazon Ads
User intent
High (people search for products/services)
Medium (interest- and demographic-based)
High (people ready to buy)
Ad formats
Text, video, banner
Image, video, carousel
Product listings, display, video
Targeting
Keywords, audience, location
Interests, behaviors, lookalike audiences
Product/category keywords, shopper behavior
Data type
Search + browsing
Social behavior
Purchase & shopping data
Measurement
Clicks, conversions
Engagement, conversions
Sales, ROAS (Return on Ad Spend)

🧮 Example Scenarios

Goal
Best Platform
Why
Drive online sales for physical products
Amazon Ads
Direct buying intent and purchase tracking
Build brand awareness with video
YouTube (Google Ads) or Instagram Reels
Strong visual storytelling
Get signups for a service
Google Search Ads
Capture active search intent
Reach niche audiences (e.g., developers, professionals)
LinkedIn Ads
Job/industry-based targeting

🧭 In Summary

  • AdTech = the overall technology powering online advertising.
  • Google Ads, Meta Ads, Amazon Ads are walled-garden AdTech platforms — they manage everything inside their own ecosystem.
  • Programmatic AdTech (like The Trade Desk or DV360) works across multiple sites and apps.
  • Each platform has different user intent, data, and ad formats, so the best choice depends on your goal.