DV360 CTV Inventory: How to Access and Buy Connected TV at Scale

Understanding CTV Inventory in DV360

Connected TV (CTV) has moved from experimental line item to core channel in most serious media plans. Display & Video 360 (DV360) is one of the most capable buying platforms for reaching viewers on the big screen — but the way CTV inventory is sourced, packaged and controlled inside DV360 is different from standard display or in-stream video. Getting it right means understanding where the supply comes from, which deal types unlock premium screens, and how to keep quality and measurement tight.

This guide walks through how CTV inventory works in DV360 and how to build campaigns that actually run on the living-room screen rather than leaking into low-value environments.

What counts as CTV inventory

CTV refers to video ads served on internet-connected television screens. In DV360 this typically breaks down into a few environments:

• Smart TV apps and operating systems — streaming apps running natively on TV operating systems.
• Streaming devices and dongles — sticks, boxes and consoles that deliver app-based video to the TV.
• YouTube on TV screens — YouTube and YouTube TV viewed in the living room, a large and growing share of YouTube watch time.

The unifying factor is device type: the ad renders on a television screen, usually as a non-skippable or limited-skip full-screen video with high completion rates and strong viewability characteristics.

Where DV360 CTV Inventory Comes From

DV360 aggregates CTV supply from several sources, and knowing the distinction helps you plan for both reach and control.

Source	What it offers	Typical control level
YouTube & YouTube TV	Large-scale reach on TV screens, bought via specific YouTube line items	Format, audience, exclusion lists
Open exchange / public marketplace	Broad CTV app supply across many publishers	Inventory lists, deal filters, verification
Deals (PG, PD, private auction)	Publisher-negotiated access to specific apps and content	High — fixed or prioritised supply
Inventory packages & marketplace	Curated CTV bundles by content genre or publisher	Medium to high

YouTube CTV

YouTube on the television is one of the most significant CTV opportunities available through Google's ecosystem. Within DV360 you access it through YouTube-specific line items and formats rather than standard third-party video buys. This gives you Google's audience signals and frequency management, but the buying mechanics — creative specs, bidding and reporting — follow YouTube's rules.

Third-party CTV apps and exchanges

Beyond YouTube, DV360 connects to a wide range of streaming publishers and supply-side platforms. This is where deal structure matters most, because open-market CTV can be uneven in quality and transparency.

Deal Types That Unlock Premium CTV

Most high-value CTV inventory is not sitting in the open auction. Premium streaming publishers protect their supply, so the deal type you choose largely determines the quality you can access.

• Programmatic Guaranteed (PG): Fixed volume at a negotiated price with a specific publisher. Best for reserving premium content and guaranteeing delivery on named apps.
• Preferred Deals (PD): A fixed price with first look at inventory, without a volume commitment. Useful for consistent access to a publisher's supply.
• Private Auction: Invite-only auctions where selected buyers compete for a publisher's inventory at a floor price. Balances control with competitive pricing.
• Open Auction: Broadest reach, lowest barrier, but requires the strongest verification and inventory filtering to maintain quality.

For brands prioritising the living-room experience, PG and private auction deals are usually where budget should concentrate. Open-auction CTV can extend reach efficiently, but only when paired with disciplined inventory controls.

Targeting and Audience Strategy for CTV

CTV targeting in DV360 leans on the strengths of the Google Marketing Platform, but the living-room context changes how you should think about it.

Practical targeting levers

• Audience lists — first-party data, Google audiences and combined segments applied to CTV line items.
• Content and app targeting — reaching viewers by genre, publisher or specific app rather than individual user.
• Geography and dayparting — especially relevant for co-viewing moments and regional campaigns.
• Device targeting — isolating connected TV device types so budget doesn't drift to mobile or desktop.

Because a single TV screen is often watched by multiple people, treat CTV as a household reach and awareness channel first. Over-narrow targeting can drive up costs and shrink the addressable pool without meaningfully improving relevance. If you are building a first-party data strategy to sharpen this, our managed services team can help structure audiences that travel across channels.

Brand Safety and Inventory Quality

CTV is generally a high-quality environment, but it is not immune to problems — misdeclared inventory, app spoofing, and low-value made-for-advertising content all exist. Protecting spend requires active controls.

• Use verified inventory sources and apply app-level allow/block lists.
• Lean on deals with named publishers so you know exactly where ads run.
• Apply third-party verification where supported to confirm device type and app authenticity.
• Monitor placement reports regularly and prune supply that underperforms or looks suspicious.

Because CTV impressions are premium-priced, wasted delivery is expensive. A tight inventory list built from proven publishers is worth far more than broad, unfiltered reach.

Measuring CTV Performance

CTV rarely produces the last click, so measurement has to be reframed around the value it genuinely delivers.

Metrics that matter

• Completion rate (VCR): CTV typically delivers very high completion because ads are non-skippable — but always validate rather than assume.
• Unique reach and frequency: The core value of CTV. Manage frequency across YouTube and third-party supply to avoid overexposure.
• Incrementality and brand lift: The strongest signals for an upper-funnel channel.
• Cross-device and assisted conversions: Understand how CTV exposure influences later actions on other devices.

Frequency management is a recurring challenge because the same viewer can be reached across multiple apps, devices and YouTube. Consolidating CTV buying within DV360 helps, but it still requires deliberate frequency capping at the campaign and audience level. For teams building a fuller measurement framework, see our overview of DV360 services and how reporting can be structured around business outcomes.

Building a CTV Buying Plan in DV360

A sound rollout usually follows a clear sequence:

1. Define the objective — reach, awareness or driving downstream action.
2. Prioritise deals — secure PG and private auction access to premium apps before layering open-auction reach.
3. Separate YouTube and third-party CTV into distinct line items for cleaner control and reporting.
4. Set inventory and brand-safety controls with app lists and verification from day one.
5. Cap frequency holistically across all CTV supply.
6. Measure against reach and incrementality, not last-click conversions.

Self-serve or supported?

CTV rewards operational discipline — deal negotiation, inventory curation and frequency governance all take time. Teams comfortable running the platform day to day may prefer a self-serve account, while those wanting hands-on deal sourcing and optimisation often opt for co-managed services to move faster without losing control.

Key Takeaways

• DV360 CTV inventory spans YouTube on TV, third-party streaming apps and deal-based publisher supply.
• Premium living-room screens are mostly accessed through PG, preferred and private-auction deals — not the open market alone.
• Treat CTV as a household reach and awareness channel, and manage frequency across all supply.
• Brand safety and inventory verification protect a premium-priced channel from waste.
• Measure success through completion, unique reach, and incrementality rather than the last click.

CTV is one of the highest-value environments DV360 can access — but only when the inventory strategy is deliberate. If you want help sourcing premium CTV deals, tightening controls or building a measurement framework that proves value, talk to our team and we'll map the right approach for your goals.