What is pre-roll ad? - Definition from WhatIs.com
Part of the Personal computing glossary:

A pre-roll ad is a promotional video message that plays before the content the user has selected. The video advertisements are often repurposed television ads, sometimes shortened to 10 or 15 seconds because the 30-second standard for ads on television is not suitable for videos, which are themselves frequently only a few minutes long.  

A new video format known as TrueView allows users to skip the ad after five seconds. However, according to VideoNuze, a video analysis and news website, almost half of all viewers watch pre-roll ads to the end, even if they have the option to skip them. 

Pre-roll ads are the most common form of video advertisement. There are also mid-roll and post-roll ads. 

This was last updated in September 2012
Contributor(s): Ivy Wigmore
Posted by: Margaret Rouse

Related Terms


  • wearables security

    - Wearables security is the area of system and data protection concerned with the particular risks related to computing devices worn on the user's body such as smartwatches, headsets and fitness trac... (WhatIs.com)

  • spatial sensing

    - Spatial sensing is the detection, measuring and analysis of an environment's space and objects in real-time for the purposes of mapping them. (WhatIs.com)

  • 360-degree VR (360-degree virtual reality)

    - 360-degree VR (360-degree virtual reality) is an audiovisual simulation of an altered, augmented or substituted environment that surrounds the user, allowing them to look around them in all directi... (WhatIs.com)


  • Personal computing

    - Terms related to personal computers, including definitions about computers sold as consumer products and words and phrases about laptops, tablets and smartphones.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment



    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.