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Karl HjartarsonJuly 13, 20262 min read

Why Your DSP Is Only Telling You Half the Story

Every programmatic trader worth their salt knows the drill. You pull DSP data, identify underperforming placements, make your cuts, and optimize. It works. Until it doesn't.

The problem isn't the DSP. It's what the DSP can't see.

Refresh rates that inflate impressions without driving engagement. Ad density so high that viewability tanks before a user even registers the ad. Budget quietly leaking into low-quality inventory, placement by placement, with nothing in the reporting to flag it. By the time standard signals catch the problem, you've already paid for it.

That's the gap our team set out to close.

Adding a Layer the DSP Can't Provide

We work with a large and growing portfolio of brands across the US market. Getting stronger results for those clients means making smarter optimization decisions, and that means having better data to work from. So we partnered with Browsi and deployed their PolarisAI inventory intelligence across 10 brand campaigns.

The goal was straightforward: get a clearer picture of where budget was working and where it wasn't, at a level of granularity the DSP simply doesn't surface.

What the Data Showed

We ran the test in two phases. In Phase 1, we monitored Browsi's PolarisAI signals alongside our existing DSP data and made optimization decisions accordingly. CTR improved consistently across our client campaigns.

In Phase 2, we leaned into the Browsi data earlier in the campaign cycle, combining it with DSP signals to drive optimization from the start. CTR increase by up to 25% across multiple campaigns. No additional spend. Just better decisions, made earlier, based on more complete information.

The result confirmed what we suspected: the inventory signals PolarisAI surfaces go beyond what any DSP can show you on its own.

What This Means for Programmatic Trading

At Anteriad, data is the foundation everything else is built on. Our programmatic team's job isn't just to activate campaigns. It's to find every legitimate optimization opportunity and act on it before budget is wasted. Partnerships like this one with Browsi are part of how we do that. The right independent data, combined with experienced traders who know how to use it, is a real performance advantage for our clients.

A 25% CTR increase with zero additional spend is a number worth paying attention to.

Want to see the full methodology and campaign-level findings? Read the case study.

Ready to see what your DSP is missing? Talk to our team.

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Karl Hjartarson

Karl Hjartarson is Executive Vice President of Digital Performance & Operations at Anteriad, where he leads the expansion of the company's data-driven digital and Managed Services capabilities. He focuses on scaling revenue, strengthening operational excellence, and delivering measurable outcomes across programmatic, audience strategy, and omnichannel activation for B2B marketers. Karl specializes in building frameworks that connect strategy, technology, and execution while championing innovation in AI and automation, and he's known for building resilient, high-performing teams across trading, analytics, and campaign leadership.