Find the DSP that reaches your publishers.
Every DSP in the directory, with the publishers it can buy from, so you open the account that fits your plan.
Browse DSPsReach you can check
Each DSP's reach is counted from publishers' own ads.txt files.
Across markets
See which DSPs are strongest in the countries you buy in.
Before you sign up
Know a DSP reaches your publishers before you open an account.
DSPs with the widest reach.
Ordered by how many publishers each can buy from.
Four questions to ask.
What to check before you open a DSP account.
Does it reach my publishers?
Open a publisher's page to see every DSP that can buy it.
Does it buy my channels?
Some DSPs cover web and app, others add CTV, audio or retail media.
What does it ask to start?
Minimum spend and fees vary. Each DSP page shows what it states.
Can I run it myself?
Some DSPs are self-serve, others work through a managed team.
Start from what you know.
Pick a DSP, a market or a channel, and follow it to the publishers.
For the people who plan the buy.
The DSPs page answers a different question for each of them.
Agency traders
Check a new publisher is reachable from the account you already run.
In-house marketers
Choose your first DSP from the publishers you want, not from a sales pitch.
Media planners
Map a plan's publishers to the fewest DSP accounts.
Know the plumbing.
DSP questions.
What buyers ask when they choose where to buy.
- What is a DSP?
- A demand-side platform: software a buyer uses to bid for ad spots across many publishers at once.
- How do you know which publishers a DSP reaches?
- Publishers list their authorised sellers in ads.txt. We follow those lines to the exchanges each DSP buys from.
- Do I need more than one DSP?
- Often one is enough. Check that it reaches the publishers on your plan before adding a second.
- Can a small team use a DSP?
- Yes. Several DSPs are self-serve with small minimums. Their pages show what they ask.
- Are SSPs listed too?
- The directory lists DSPs, since that is where a buyer opens an account. SSPs still show up on each publisher's selling path.
Choose your DSP with the facts.
Every DSP, with the publishers it can reach.
Browse DSPs