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CSAI vs. SSAI vs. DAI: What You Need to Know

Ad insertion is a key technology that allows video publishers to monetize their content effectively. There are several different approaches to ad insertion, including client-side ad insertion (CSAI), server-side ad insertion (SSAI), and dynamic ad insertion (DAI), each with its own strengths and weaknesses.

CSAI - can cause negative user experiences if slow

CSAI is a method of ad insertion in which the ad content is downloaded to the client device and then played back during the video stream. The ads are typically downloaded in advance of the video content, and then cached on the client device, which can negatively impact the user experience, particularly if the user's internet connection is slow or the ad content is large. CSAI has been used for many years, but it is becoming less popular as more efficient ad insertion methods have been developed.

SSAI - drives ad performance with real-time delivery

SSAI is a method of ad insertion in which the ad content is stitched into the video stream on the server side, before the content is delivered to the viewer. SSAI allows for seamless and uninterrupted playback of the video content, regardless of the user's device capabilities or internet speed, and it enables a more consistent user experience. SSAI can also offer real-time ad delivery and targeting, as well as other advantages such as improved ad performance.

DAI- offers targeting and flexibility

DAI is a method of ad insertion that delivers ad content in real-time, allowing for greater flexibility and targeting of the ad content. DAI is similar to CSAI and SSAI in that it involves inserting ads on the client side, but it differs in that the ad content is delivered in real-time. This enables real-time ad targeting based on user behavior and preferences, and it allows for more precise ad placement, which can result in higher engagement and conversion rates.


In summary, CSAI, SSAI, and DAI are three different approaches to ad insertion in video content, each with its own strengths and weaknesses. While CSAI and SSAI have been used for many years, DAI is becoming increasingly popular due to its real-time delivery of ad content and its ability to offer greater targeting and personalization of ads. SSAI, on the other hand, offers a consistent user experience and improved ad performance, making it a valuable option for certain use cases. Learn more about Macrometa's ready to go OTT Video Streaming solutions to maximize revenue and streaming engagement, or chat with a solution architect.

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