DV360 Exchange Names Explained: How to Read, Target and Optimise Inventory Sources

Understanding DV360 Exchange Names

If you've spent any time inside Display & Video 360 reporting, you've seen a long list of exchange names — Google Ad Manager, Xandr, Magnite, PubMatic, OpenX, Index Exchange and dozens more. For new and even experienced buyers, these names raise practical questions: What exactly is an "exchange" in DV360? Why do the same publishers appear across multiple exchanges? And how should exchange names inform your targeting, exclusions and optimisation decisions?

This guide breaks down what DV360 exchange names actually represent, where you find them, and how to use them to control quality, cost and scale.

What an exchange is in DV360

In programmatic terms, an ad exchange (also called a supply-side platform or SSP) is a marketplace that aggregates publisher inventory and makes it available to demand-side platforms like DV360 through real-time bidding. When you buy open-auction inventory in DV360, you are bidding on impressions that reach you through one or more of these connected exchanges.

The exchange name in DV360 therefore answers a simple question: which supply source did this impression, click or conversion come through? It is not the publisher or the website — it is the pipe that delivered the opportunity to bid.

A single publisher often sells the same inventory through several exchanges simultaneously (a practice tied to header bidding). That's why you may see the same domain appear under Google Ad Manager, Magnite and Index Exchange in the same report.

Where You See Exchange Names in DV360

Exchange data surfaces in several places across the platform:

• Targeting settings at the line item and insertion order level, under inventory source controls.
• Reporting dimensions, where "Exchange" is available as a breakdown alongside App/URL, Deal ID and Inventory Source.
• Deals and Marketplace, where private deals are tied to a specific exchange or publisher's seller platform.
• Inventory source exclusions, both at the campaign level and via partner or advertiser-level controls.

Using the Exchange dimension in a report is one of the fastest ways to see where your budget is actually flowing and how each supply path is performing.

Common exchanges you'll encounter

The exact list available to you depends on your seat, region and any partner-level restrictions. The table below outlines the types of exchanges you typically see and why they matter.

Exchange type	Examples of what appears	Why it matters
Google-owned supply	Google Ad Manager, AdX	Deep integration, broad reach, strong reporting fidelity
Major independent SSPs	Xandr, Magnite, PubMatic, OpenX, Index Exchange	Scale, header-bidding overlap, competitive pricing
Video & CTV-focused	SpotX/Magnite CTV, Telaria heritage supply	Access to connected TV and premium video pods
Specialist or regional	Smaato, Sovrn, TripleLift, Sharethrough	Native formats, mobile, or regional publisher access

Names and ownership shift over time as SSPs merge and rebrand, so treat any static list as a snapshot rather than a permanent fixture.

Why the Same Publisher Appears Across Multiple Exchanges

Modern publishers use header bidding to offer a single impression to many exchanges at once, then take the highest bid. For a DV360 buyer this creates three practical realities:

• Duplication in reporting. The same domain can show up under several exchange names, each with different win rates and CPMs.
• Price and quality variance. The identical placement may clear at different costs depending on which exchange path won the auction.
• Optimisation opportunity. By comparing performance by exchange, you can favour the paths that deliver efficient, viewable, brand-safe impressions.

This is where supply path optimisation (SPO) comes in — deliberately choosing the most direct, transparent and cost-effective routes to the inventory you want.

How to Use Exchange Names in Targeting

Exchange names are not just labels; they are levers. Here's how to put them to work.

1. Target specific exchanges

You can restrict a line item to only bid on selected exchanges. This is useful when:

• A particular exchange consistently delivers better viewability or lower fraud.
• You want to consolidate spend into a few transparent supply paths for cleaner reporting.
• You're running video or CTV and want exchanges with strong premium video access.

2. Exclude exchanges

Excluding an exchange is a blunt but effective control when a supply source shows poor performance, weak transparency, or elevated invalid traffic. Exclusions can be applied at the line item level or, for consistency, at higher levels of your account structure.

3. Combine with deals and inventory sources

For the tightest control, pair exchange targeting with:

• Deal IDs for guaranteed or preferred pricing on named inventory.
• Public and private inventory packages curated around quality thresholds.
• Brand safety and verification controls so exchange choice reinforces, rather than replaces, content-level protection.

If you want help designing this kind of layered inventory strategy, our DV360 managed services team builds and maintains supply frameworks for exactly this purpose.

Reading Exchange Performance the Right Way

When you break a report down by exchange, resist the urge to judge on cost alone. A low CPM from one exchange means little if viewability, completion rates or conversion quality are weak. Evaluate exchange names against a balanced set of metrics:

• Viewability and measurable rate — is the impression actually seeable?
• Invalid traffic signals — how clean is the supply?
• Win rate and CPM — how competitive and efficient is the path?
• Downstream performance — conversions, completed views or engagement, not just delivery.

Run this analysis over a meaningful window and enough volume before making structural decisions. Cutting an exchange on a few hundred impressions of data will do more harm than good.

Practical optimisation workflow

1. Report on the last 30 days by Exchange dimension.
2. Filter for exchanges with enough impressions to be statistically meaningful.
3. Rank by your primary KPI, then sanity-check against viewability and IVT.
4. Reallocate: expand budget to strong paths, throttle or exclude weak ones.
5. Re-test periodically, since supply dynamics change constantly.

For a broader view of how supply decisions fit into overall account structure, see our overview of DV360 services.

Common Mistakes to Avoid

• Over-restricting exchanges early. Locking to a couple of exchanges before you have data can strangle scale and inflate costs.
• Confusing exchange with publisher. The exchange is the pipe; the App/URL dimension tells you the actual site or app.
• Ignoring CTV and video supply nuances. Video inventory often flows through different exchange paths than standard display.
• Setting and forgetting. SSP ownership, integrations and performance shift, so revisit your exchange strategy on a schedule.

If you're weighing whether to manage this in-house or with expert support, our comparison of co-managed services explains where hands-on guidance adds the most value.

Bringing It Together

DV360 exchange names are far more than reporting clutter. They describe the supply paths carrying your budget, and understanding them lets you buy more transparently, control quality, and optimise cost without sacrificing scale. Start by simply reporting on the Exchange dimension, learn which paths perform, then apply targeting and exclusions with intent — always balanced against verification and downstream results.

If you'd like a specialist to audit your current supply paths and build an exchange strategy tailored to your goals, get in touch with our DV360 experts. We'll help you turn a confusing list of exchange names into a deliberate, high-performing inventory plan.