Video
Server-Side Ad Insertion (SSAI) — Definition & Explanation
A technique for inserting ads into video streams on the server before delivery to the viewer, creating a seamless experience without buffering or ad blocker vulnerability. Common in CTV and live streaming environments.
How Server-Side Ad Insertion (SSAI) Works
SSAI stitches ad content into the video manifest before delivery to the player, making the combined stream appear as a single continuous video to the player and ad blockers.
Why Server-Side Ad Insertion (SSAI) Matters for Publishers
SSAI is the industry standard for CTV and live video monetization. It eliminates ad blocking, enables seamless ad breaks, and ensures brand-safe delivery. CPMs of $20-50+ are achievable with SSAI-enabled video inventory.
Frequently Asked Questions
How is SSAI different from client-side ad insertion (CSAI)?
CSAI inserts ads in the browser/player, making them vulnerable to ad blockers. SSAI stitches ads on the server, making them indistinguishable from content to ad blockers.
Does SSAI work for all video formats?
SSAI is most commonly used for CTV, live streaming, and VOD. For outstream and short-form web video, client-side VAST insertion is typically used.
Does Stellor Media support SSAI integration?
Yes. Stellor Media's video monetization platform supports SSAI-based CTV and streaming video monetization.
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