Ezoic Industry Terms

A definitive guide to all Ezoic-related Terminology

Adaptive Sizing

An intelligent system that analyzes when to show multiple smaller ad sizes in a larger placeholder.  An equal or lesser amount of pixels are shown, but there are multiple ad creatives rather than one, larger one.

Always Compete

A setting on placeholders that are used for Direct Ad Orders that must have a certain size shown due to the creative size.

Ad Unit

Ad code that defines the ad size and location, and is used to serve the ad selected by the real-time bidding process.

Ads.txt (Authorized Digital Sellers)

 A method for publishers to declare which demand partners are authorized to sell their inventory and is meant to combat ad fraud.


A blank div that represents a potential ad unit that Ezoic’s system may choose to serve an ad. 

Float (placeholder)

Styling the ad unit to the left or right of the element, allowing text to wrap around the ad unit.

Placeholder Position Type

Indicates the location of a placeholder on a website page (e.g. sidebar, top of page, mid content).  These aren’t meant to be strictly enforced, but give the system a general idea of where on the page the placeholder is located.

Wrapping Ads

Putting the Ezoic placeholder code around existing ad units on the site, which allows Ezoic’s system to test the existing ad locations along with new ones without changing anything on the original version of the site.

Content Delivery Network (CDN)

A network of distributed servers that deliver pages and other web content to a user, based on the geographic locations of the user, the origin of the webpage, and the content delivery server to improve site speed and user experience. 

Anchor Ads

A type of overlay ad which stays at the bottom of a webpage regardless of scrolling.

Key Value

A unique identifier that’s found on a page that allows specific targeting, set up, etc.

Key Value Rule

A rule created for specific key values to target, include / exclude, etc.


Linking multiple ad networks to Ezoic to allow them to compete vs. Ezoic’s ad partners in a real-time bidding auction to compete over ad space on a page.  This ensures that you’re getting the highest rate for every impression on the site.


Storing copies of data or website content so it can be served to users faster.