Seven domains produced two fifths of the clicks
Seven domains produced 41.3 percent of Supply Bench clicks from 4.7 percent of impressions. That is a concentration finding, not a certified IVT verdict.
Published 2026-09-09 · Search job: click fraud display ads domains
Click-fraud hunts on display ads often start with a domain list because that is where the click pile shows up. On the 2026-09-02 Supply Bench pull, seven domains produced 41.3 percent of all clicks from 4.7 percent of impressions. That is a concentration signature. It is not a certified invalid-traffic verdict. We had no IVT vendor attached.
The flight average was about 0.28 percent CTR. The seven hosts were not near that average.
The seven
| Domain | CTR | Counts we will quote |
|---|---|---|
| people.com | 15.97 percent | 144 impressions, 23 clicks |
| msn.com | 5.35 percent | 785 impressions, 42 clicks |
| booksandbao.com | 3.82 percent | rate only |
| wheelofnames.com | 2.29 percent | rate only |
| tftcomps.gg | 2.17 percent | rate only |
| worldofsolitaire.com | 1.10 percent | rate only |
| worldlifestyle.com | 1.08 percent | rate only |
Impression and click counts are published only where the pull recorded them. We will not invent the missing counts. people.com at 15.97 percent on 144 impressions is more than fifty times the flight average. msn.com at 5.35 percent on 785 impressions is the same host we already flagged in the July 2026 learning flight. That repeat is its own article: msn.com showed up twice.
Three of the seven are browser games or toys we still bought after setting environments=['web']: worldofsolitaire.com, wheelofnames.com, and tftcomps.gg. Web-only is not a quality filter. See Web-only still bought browser games.
Why this is not a fraud certificate
A 15.97 percent CTR on remnant display is implausible for a person tapping a 300x250. Implausible is not the same as measured invalid. invalid_impressions and viewable_impressions were zero on every campaign we have flown because creatives carried creative_addons: []. Zero there means nothing was measuring.
We will not write "these seven domains are bots." We will write "these seven domains produced two fifths of the clicks from one twentieth of the impressions, and that shape is how leftover inventory inflates CTR." CTR is a trap is the essay version. This page is the table.
Click-to-page-view is the next meter once the join is honest. Anonymized main-seat brand-name display flights we can cite without naming the advertiser sat at 15.85 percent when the traffic was usable and 3.75 to 6.68 percent when it was not. Until that join exists for this flight, concentration is the claim we can stand on.
What the rest of the buy looked like
While those seven hosts produced the click pile, 1,073 placements (93.4 percent) had zero clicks and took $202.77, 64 percent of observed spend. The buy was both sparse and contaminated. Sparse means most slots did nothing. Contaminated means the slots that clicked were the wrong shape. Those are different problems and they need different excludes.
The watchlist we will keep updating lives at Click contamination watchlist. If a later pull contradicts a rate on this page, we will edit the original article and date the change. We will not freeze a first-wave score as a category benchmark.