Microsoft Ads click fraud: vetting Bing's search-partner and audience inventory
Microsoft Advertising often delivers cheaper clicks than Google — partly because it reaches a broad syndicated search-partner network whose quality varies. That variance is where invalid traffic concentrates, and where per-source measurement pays off.
Illustrative example — the same 0–100 score, per source, worst first.
Where Microsoft Ads invalid traffic concentrates
Two areas carry most of the risk:
- Syndicated search partners — Microsoft serves ads across a wide partner network beyond Bing itself. Some partner inventory delivers genuine search intent; some originates from sub-sources whose network owner or geography doesn't fit a plausible search session.
- Microsoft Audience Network — native placements across MSN, Outlook and partner sites, with the same publisher-quality spread you see in other native inventory.
Like Google Ads, the damage is concentrated rather than loud: it shows up on specific partner segments or audience placements, not in the campaign average.
How ValidVisit scores it
Microsoft tags clicks with an `msclkid`, so ValidVisit can attribute each scored click to its campaign and, where exposed, its partner or placement segment. Each click is weighed against 100+ independent data points — spanning its network origin, the device and the visitor's behavior — and carries a transparent 0–100 score, with nothing on the click path.
What you do with it
The payoff is a per-segment view: which search-partner segments and audience placements send real, converting clicks versus invalid traffic. You use that to refine where Microsoft is allowed to syndicate your ads — a decision you make in Microsoft Advertising. ValidVisit provides the independent evidence behind it.
Related
See your own channel scored the same way — early access is open.
FAQ
Why is Microsoft Ads traffic cheaper — and is that a catch?+
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Does ValidVisit work the same way as it does for Google Ads?+
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