Key takeaways
- Streaming advertising is the delivery of video ads within internet-based streaming services, including OTT platforms, connected TV (CTV) applications, and advertising-supported video services.
- The two main advertising-supported streaming models are AVOD, which offers on-demand content with ads, and FAST, which delivers free, scheduled streaming channels.
- Ads can be delivered using Server-Side Ad Insertion (SSAI), Client-Side Ad Insertion (CSAI), or other approaches depending on the platform and devices.
- Streaming advertising can use contextual, geographic, and audience signals to help deliver more relevant campaigns, subject to privacy and consent requirements.
- Key metrics include ad impressions, fill rate, completion rate, effective CPM (eCPM), and advertising revenue.
- For streaming operators, successful advertising depends on balancing monetization, viewer experience, technical reliability, and operational complexity.
Streaming advertising has become an important part of how OTT providers, broadcasters, media companies, and Pay TV operators monetize video content.
Rather than relying entirely on subscriptions, streaming services can generate revenue by showing advertisements before, during, or around video programming.
This creates opportunities to reach audiences who prefer free or lower-cost access to content, while giving operators another way to monetize viewing.
But streaming advertising involves more than placing a commercial break inside a video.
Behind every ad are technologies responsible for selecting campaigns, delivering creative assets, managing consent, measuring impressions, and maintaining playback quality.
Understanding how these systems work is essential when building an advertising-supported streaming service.
What is streaming advertising?
Streaming advertising refers to advertisements delivered within video content streamed over the internet.
These advertisements can appear across connected TVs, smart TVs, set-top boxes, smartphones, tablets, and web browsers.
Unlike traditional broadcast advertising, streaming advertising can support digital ad decisioning, audience targeting, campaign measurement, and more flexible inventory management.
Streaming advertisements commonly appear:
- Before content begins (pre-roll)
- During a program (mid-roll)
- After content ends (post-roll)
- During scheduled commercial breaks on linear streaming channels
The advertising experience depends on the service, business model, device, and technology used to deliver the ads.
How does streaming advertising work?
A simplified streaming advertising workflow involves six steps.
1. The viewer starts watching
A viewer selects a movie, episode, live event, or streaming channel.
The application or video delivery system identifies an advertising opportunity.
2. An ad opportunity is created
The streaming service sends an ad request containing information relevant to the opportunity.
This may include the content category, device type, ad break duration, location, and permitted audience signals.
3. The ad server selects an advertisement
An ad server or connected advertising platform evaluates eligible campaigns and selects an ad.
In programmatic environments, additional demand-side and supply-side technologies may participate in the decision.
4. The advertisement is delivered
The selected creative is delivered through the streaming workflow.
Depending on the architecture, the ad may be inserted by the viewer's device or stitched into the stream by a server-side system.
5. The viewer watches the ad
The advertisement plays before, during, or after the content.
The experience should minimize unnecessary buffering, playback interruptions, and excessive repetition.
6. Performance is measured
The advertising system records relevant events and makes performance information available for reporting, billing, and optimization.
In simple terms: Viewer starts video → Ad opportunity → Ad decision → Ad delivery → Playback → Measurement.
What are the main types of streaming advertising?
Streaming advertising can support several business models and viewing environments.
AVOD: Advertising Video on Demand
AVOD (Advertising Video on Demand) provides on-demand content funded primarily through advertising.
Viewers choose what to watch and may encounter ads before or during playback.
AVOD is often free to access, although advertising can also appear in lower-priced subscription tiers.
FAST: Free Ad-Supported Streaming TV
FAST (Free Ad-Supported Streaming TV) provides free, scheduled linear channels supported by advertising.
Rather than choosing individual titles, viewers typically select a channel and watch the programming currently playing.
FAST advertising needs to fit within scheduled breaks, making channel playout and ad-break management important.
Advertising-supported subscriptions
Some streaming services offer lower-priced subscription tiers that include advertising.
This combines subscription revenue with advertising revenue and can give viewers more pricing options.
Live streaming advertising
Advertising can also appear during live sports, news, concerts, and other events.
Live environments introduce additional considerations around ad-break timing, traffic peaks, and maintaining reliable playback.
What are the main streaming ad formats?
Not every format is suitable for every device or service.
For example, remote-controlled connected TV environments have different interaction requirements from mobile or web applications.
Operators should choose formats that fit the content, viewer expectations, and technical capabilities of their platform.
What is the difference between OTT and CTV advertising?
OTT and CTV advertising are closely related, but they describe different things.
OTT advertising refers broadly to advertising delivered through internet-based video streaming services.
CTV advertising refers specifically to advertising viewed on connected television devices.
For example, an ad shown within a streaming application on a smartphone is OTT advertising but not CTV advertising.
The same ad shown within a streaming application on a smart TV can be considered both OTT and CTV advertising.
SSAI vs CSAI: how are streaming ads inserted?
Two common approaches are Server-Side Ad Insertion (SSAI) and Client-Side Ad Insertion (CSAI).
Server-Side Ad Insertion (SSAI)
SSAI inserts or stitches advertisements into the video stream through server-side infrastructure before delivery to the viewer.
This can help create smoother transitions between content and advertising, although results depend on implementation, encoding, and delivery conditions.
SSAI is widely used in connected TV, live streaming, and FAST environments.
Client-Side Ad Insertion (CSAI)
CSAI uses the application or video player on the viewer's device to request, manage, and play advertisements.
It can provide direct control over ad playback and interactions, but requires compatible player and device implementations.
Neither method is universally better.
The right choice depends on device coverage, ad formats, measurement requirements, video workflows, and the desired viewer experience.
How does streaming advertising targeting work?
Streaming advertising can use different signals to help select relevant campaigns.
Common approaches include:
Contextual targeting: Advertising based on the content category, genre, or viewing environment.
Geographic targeting: Advertising selected according to permitted location information.
Device targeting: Campaigns tailored to supported device categories or technical environments.
Audience-based targeting: Advertising informed by permitted audience information, where consent and applicable privacy requirements allow.
First-party data: Information collected directly by the streaming provider through its relationship with viewers, subject to applicable requirements.
Targeting capabilities vary depending on the platform, available data, user permissions, and advertising partners.
A privacy-conscious advertising strategy should avoid assuming that all viewer information is available or appropriate to use.
What metrics matter most in streaming advertising?
Streaming providers need to understand both advertising performance and the effect of ads on viewers.
Operators should also examine whether advertising affects content completion, session duration, or return frequency.
A higher number of ad impressions does not necessarily mean a better overall commercial outcome if viewers disengage.
What are the biggest challenges in streaming advertising?
Balancing advertising revenue with viewer experience
Increasing ad load may create more advertising opportunities, but it can also frustrate audiences.
Operators need to consider the frequency, relevance, timing, and repetition of ads.
Managing fragmented device environments
Streaming applications operate across different players, operating systems, and devices.
Advertising workflows need to function consistently across these environments.
Maintaining playback quality
Poor ad transitions, buffering, or playback errors can disrupt viewing.
Advertising delivery should be considered alongside the wider video workflow rather than as a completely separate system.
Connecting advertising and audience data
Ad reporting becomes more useful when operators can evaluate it alongside content engagement and viewer behavior.
Disconnected systems can make it difficult to understand how advertising affects retention and revenue.
Managing privacy and consent
Advertising data collection and targeting need to comply with applicable privacy requirements and user choices.
Consent management, data governance, and measurement design are therefore important parts of the advertising architecture.
What should operators look for in a streaming advertising platform?
Before choosing advertising technology, streaming providers should ask:
- Does it support the devices and applications used by our audience?
- Can it support our preferred ad insertion approach, including SSAI or CSAI?
- Does it integrate with our ad server and advertising demand partners?
- Can we manage advertising across VOD, live, and FAST services?
- How does it handle ad breaks, errors, and playback transitions?
- What reporting is available for impressions, fill, yield, and completion?
- Can advertising performance be connected with content and audience analytics?
- Does the architecture support our privacy and consent requirements?
These questions help operators evaluate advertising as part of the overall streaming service rather than only as a revenue-generating component.
Streaming advertising within 24i Video Cloud
24i Video Cloud brings together content management, video workflows, personalization, monetization, applications, and data within a connected streaming ecosystem.
24i Advanced Advertising supports advertising as part of that wider streaming environment.
For OTT providers, broadcasters, media companies, and Pay TV operators, this connected approach can help align advertising requirements with content delivery, applications, audience experiences, and performance information.
A modular architecture also allows operators to integrate existing technologies where they continue to provide value.
Rather than treating advertising as an isolated addition to a video player, operators can plan monetization alongside the wider streaming architecture.
Conclusion
Streaming advertising allows OTT providers, broadcasters, and media companies to generate revenue from internet-delivered video.
It supports a range of viewing models, including AVOD, FAST, advertising-supported subscriptions, and live streaming.
However, successful streaming advertising requires more than selecting ads.
Operators need reliable insertion technology, effective ad decisioning, appropriate targeting, useful measurement, and a viewer experience that encourages audiences to keep watching.
With 24i Video Cloud, operators can connect content management, video workflows, personalization, monetization, applications, and data within a modular streaming ecosystem.
Looking to evolve your streaming advertising strategy? Talk to 24i.
FAQs
What is streaming advertising?
Streaming advertising is the delivery of advertisements within video content streamed over the internet. It can appear in on-demand programming, live streams, and scheduled streaming channels.
How does streaming advertising work?
A streaming service identifies an advertising opportunity, sends an ad request, receives an ad decision, delivers the advertisement through the streaming workflow, and records relevant performance events.
What is the difference between streaming advertising and traditional TV advertising?
Traditional TV advertising is generally associated with scheduled broadcast inventory. Streaming advertising can support digital ad decisioning, device-specific delivery, audience targeting, and more granular measurement, depending on the technology and available data.
What is the difference between OTT and CTV advertising?
OTT advertising is delivered through internet-based streaming services across different devices. CTV advertising specifically refers to advertising viewed on connected television devices.
What is SSAI in streaming advertising?
SSAI stands for Server-Side Ad Insertion. It inserts advertisements into a video stream through server-side infrastructure before the stream reaches the viewer.
What is CSAI in streaming advertising?
CSAI stands for Client-Side Ad Insertion. It uses the application or video player on the viewer's device to request and play advertisements.
What is the difference between AVOD and FAST advertising?
AVOD advertising appears within on-demand content selected by the viewer. FAST advertising appears within scheduled linear streaming channels.
What is an ad server?
An ad server is technology that helps manage advertising campaigns, select eligible ads for available opportunities, and support delivery and reporting.
How is streaming advertising revenue measured?
Operators commonly evaluate impressions, fill rate, eCPM, ad revenue, and completion rates, alongside audience engagement and playback quality.
Can streaming services combine subscriptions and advertising?
Yes. Streaming services can combine subscription revenue with advertising through ad-supported tiers or broader hybrid monetization models.
How does 24i support streaming advertising?
24i Advanced Advertising connects advertising capabilities with the wider 24i Video Cloud ecosystem, helping operators align monetization with video workflows, applications, and audience experiences.
