adnxs.com in the Consent Gap Index

Twenty-three companies is the highest median here

The median site carrying adnxs.com contacts 23 distinct companies. That is the highest median company count of the 88 companies in this index. Alongside it: 6 companies classified as trackers on the median site — no company of the 88 has a higher median, and Criteo and creativecdn.com report the same 6 — and 99 requests to third-party hosts, which is 2nd of 88. To put the shape of that in plain terms, a visitor loading one of these pages sets off contact with roughly two dozen separate organisations and around a hundred network calls before they have read a paragraph. This is what a page financed by programmatic auction looks like when it is measured rather than described.

Eight more companies after the consent window

The median adnxs.com site had 11 companies contacted before a banner answer could be registered — 8th of the 88 companies indexed, with seven above it and eight others reporting the same 11. What is unusual about these pages is what happens next: on the median site, 8 further companies are contacted after the consent window closes. Auction-driven pages do not assemble their guest list in advance. Each bid response can introduce a party the page had never contacted before, which is why the count keeps climbing after the opening burst rather than settling. It also means a snapshot taken at first render substantially understates who ends up involved.

Banners on 83 of 138 sites

83 of the 138 sites carried a consent tool. Six were seen alongside them: an IAB TCF consent tool on 57 sites, OneTrust on 17, Osano on 5, Cookiebot on 2, Usercentrics on 1 and CookieYes on 1. The dominance of the IAB TCF tool is the notable part. That framework exists specifically to pass consent signals into an advertising auction, so its concentration here is a direct reflection of what these pages are: inventory, sold in real time, to buyers who need a consent string to bid.

Early contact is comparatively rare

Early contact happened on 121 of the 138 sites, 87.7 percent — which ranks 77th of the 88 companies here, one of the lower shares in the index. The median site made its first third-party request at 703 milliseconds, ranking 36th of 88, with the fastest recorded at 75 milliseconds. That combination is worth sitting with. This is simultaneously the group with the largest median cast and one of the groups least likely to have contacted anyone in the opening window. Heaviness and earliness are different properties, and the auction stack is heavy late rather than fast early.

The named sites, and how far apart they sit

globo.com contacted 36 companies with 3 of them early and first contact at 1,733 ms. cbc.ca shows 32 companies with 11 early at 629 ms, and tenki.jp 25 with 5 early at 463 ms. netkeiba.com contacted 21 with only 3 early, at 1,403 ms. Against those, lanacion.com.ar shows 20 companies with all 20 inside the early window at 396 ms, vg.no 12 of 12 at 248 ms and aftonbladet.se 11 of 11 at 386 ms — three sites where the entire cast arrives before an answer is possible. The business-software end of the sample is lighter: qualtrics.com at 8 companies with 6 early, autodesk.com at 10 with 4, trendmicro.com at 18 with 13. uol.com.br shows 16 with 11 early and olx.com.br 13 with 9.

The company it keeps

Google was present on 94 of the 138 sites, 68.1 percent. Criteo follows on 56 sites (40.6 percent), Amazon Ads on 40 (29) and Comscore on 31 (22.5). These are counts of sites where both were seen, not statements about who called whom. Taken together they describe a well-defined market segment rather than a random slice of the web: ad-financed publishers running a demand stack deep enough that a single exchange hostname is a reliable marker for the other two dozen.

Seen on the same pages

Companies most often contacted by the same sites. Co-presence only — the crawl records what arrived, not who called whom.

• GoogleTogether on 94 of these sites
• CriteoTogether on 56 of these sites
• creativecdn.comTogether on 49 of these sites
• Amazon AdsTogether on 40 of these sites
• ComscoreTogether on 31 of these sites
• amazonaws.comTogether on 20 of these sites
• crwdcntrl.netTogether on 19 of these sites
• jsDelivrTogether on 19 of these sites