Why Has CTV Mostly Stayed With SSAI?

BRNDTS Technology In Action

Connected TV created a different viewing environment for TV vs browser and mobile video. Audiences watching content on television screens generally expect a smoother, more continuous experience, especially during long-form viewing sessions. Buffering during ad breaks, abrupt transitions, unstable rendering, or advertising experiences that feel disconnected from the content can damage the perception of platform quality very quickly.

Server-side ad insertion, often abbreviated as SSAI, fits naturally into this environment because advertising is integrated directly into the stream before playback reaches the viewer. Instead of requiring the device or application to load advertising separately during playback, the advertising experience arrives as part of the stream itself. This can help platforms preserve continuity, reduce transition instability, and create an experience that feels closer to traditional television.

Over time, many CTV ecosystems became organized around these continuity-first priorities. Stream preparation, monetization workflows, reporting systems, playback logic, ad decisioning processes, and operational expectations increasingly aligned around SSAI because it served the core requirement of CTV: keeping the viewing experience stable.

Ad Blockers were never an issue for CTV

SSAI became closely associated with one major advantage in digital video environments: reducing the impact of browser-based ad blockers. By stitching advertising directly into the video stream before playback reached the viewer, streaming platforms could avoid some of the interruption and visibility problems that became common across open web ecosystems.

However, connected TV seems like an environment where this issue should matter far less. Most CTV viewing happens inside controlled applications rather than open browser environments where traditional ad blockers dominate. That raises an important question: if CTV is not shaped by browser-based ad blocking in the same way, why has it remained so heavily built around SSAI instead of adopting more client-side ad insertion?

Why CSAI Did Not Simply Replace SSAI

The fact that many OTT services originally evolved from browser and mobile environments did not automatically make CSAI the default model for connected TV. OTT infrastructure rarely evolves through complete replacement cycles. Most streaming platforms expanded gradually from earlier digital ecosystems, carrying forward monetization systems, reporting workflows, campaign infrastructure, playback logic, and application behavior that were already deeply integrated across the business.

Changing insertion models is therefore not a simple technical switch. Advertising infrastructure touches many parts of a streaming platform at once, including measurement, campaign execution, playback behavior, reporting, monetization strategy, creative delivery, and viewer experience. Replacing or reworking one layer can affect several others simultaneously.

This is one reason CTV remained mostly SSAI-oriented. SSAI was already solving the continuity problem that mattered most in living room environments, and the surrounding infrastructure evolved around that priority. CSAI still offered flexibility, but adopting it broadly in CTV required platforms to manage new layers of rendering behavior, application-level responsiveness, measurement coordination, and playback risk.

But OTT Delivery Is Changing Again

The situation is changing because many OTT experiences are no longer delivered only through traditional native CTV application models. More OTT environments are becoming web-based, web-capable, web-native or built with application layers that behave more like digital environments than classic television infrastructure. That shift reopens the question of CSAI.

If OTT delivery increasingly includes web-based environments, then client-side capabilities become more relevant again. CSAI can support more dynamic advertising behavior at the application layer, allowing monetization experiences to respond to audience context, playback behavior, engagement conditions, interface behavior, and session-level opportunities more flexibly than a purely stream-stitched model can.

The issue is not whether CSAI should replace SSAI. For CTV, SSAI still plays an important role in preserving continuity and stable playback. The real question is how platforms can introduce CSAI-based monetization opportunities inside modern OTT environments without breaking the SSAI-driven continuity that audiences already expect.

The Coexistence Challenge

This is where the challenge becomes more operational. Running CSAI and SSAI together is not just a matter of adding another insertion method. Both approaches affect how advertising is delivered, rendered, measured, sequenced, and experienced by the viewer.

If they are not coordinated properly, platforms can create conflicts between monetization logic and playback continuity. They may introduce redundant ad opportunities, inconsistent measurement signals, creative conflicts, timing problems, or ad experiences that feel layered on top of one another instead of working as part of a coherent viewing session.

This is why coexistence matters. SSAI can continue protecting the continuity-sensitive parts of the experience, while CSAI can open additional monetization opportunities in environments where application-layer delivery is possible. The value is not in replacing one model with the other. The value is in allowing both to operate together in a controlled way.

How BRNDTS Helps OTT Platforms Expand Monetization Without Replacing SSAI

As OTT environments become more web-based, BRNDTS helps publishers introduce CSAI-driven monetization opportunities in environments where application-layer advertising behavior becomes possible again. This does not require platforms to abandon SSAI. Instead, BRNDTS supports adaptive client-side advertising while integrating with SSAI solutions already in place.

As a CSAI technology provider, BRNDTS helps platforms adapt advertising experiences across fragmented devices, screen formats, playback conditions, and audience contexts. When SSAI infrastructure is already present, BRNDTS works alongside it by taking into account competing brands, cooldown times, and audience behavior, helping publishers create a better viewer experience without sacrificing monetization.

This allows OTT platforms to expand monetization strategies in web-based and hybrid playback environments while respecting the continuity expectations that made SSAI important for CTV in the first place. The value is not in replacing SSAI with CSAI, but in allowing CSAI opportunities to coexist with SSAI infrastructure in a way that improves advertising coordination, viewer experience, and monetization potential.