dns-finder.com in the Consent Gap Index
dns-finder.com is a hostname with no entry in the vendor catalogue this index uses. It has no company name attached to it here, no category, and no tracking classification. Most people who look it up have just found it in a content blocker's log or a network panel and want to know what it is doing on the page. What the measurements can say is unusually precise. It was recorded on 79 sites, 1.5 percent of the 5,294 measured, and on every single one of those 79 the same two other hosts were present as well.
One hundred percent, twice over
In this entity's co-presence figures, ad-delivery.net appears on 79 of 79 sites and btloader.com on 79 of 79. Two companions at exactly 100 percent is not a pattern that emerges from 79 independent purchasing decisions by 79 different site owners. It is the signature of a bundle: one installation that brings all three hostnames with it. This index records co-occurrence, not causation, so the mechanism is an inference rather than a measurement — but the inference is about as constrained as co-presence data gets. Behind them the tail looks conventional: Google on 61 sites (77.2 percent), Amazon Ads on 35 (44.3), Comscore on 26 (32.9).
Almost every site here has a banner
76 of the 79 sites carried a consent tool. All but three, in other words. Four were seen alongside them: an IAB TCF consent tool on 55 sites, OneTrust on 16, Cookiebot on 4 and Usercentrics on 1. The concentration in the IAB TCF tool matters, because that framework exists to carry consent signals into advertising auctions. A group of sites this uniformly banner-equipped is a group with a European audience and an ad-financed page, which is exactly what the rest of the numbers describe.
Heavy pages, contacted early
The median site here contacts 17 distinct companies, 3 of them classified as trackers, over 80 requests to third-party hosts — 10th of 88 on both company count and request count. First contact on the median site landed at 524 milliseconds, the 8th-lowest median of the 88 companies indexed, with the fastest recorded at 85 milliseconds. Early contact happened on 75 of the 79 sites, 94.9 percent. On the median site, 13 companies were contacted before an answer could be registered and 3 more after the consent window closed.
Named sites, and where they sit
theverge.com contacted 21 companies with all 21 inside the early window, at 271 ms. imgur.com shows 14 of 14 at 216 ms, lanacion.com.ar 20 of 20 at 396 ms, letterboxd.com 10 of 10 at 251 ms and myinstants.com 11 of 11 at 524 ms. time.com is the heaviest in the sample at 26 companies with 22 early and first contact at 157 ms — the fastest here. The deferred cases are the minority: olx.pl contacted 14 companies with 6 early at 1,152 ms, otomoto.pl 12 with 8 at 677 ms, nexusmods.com 17 with 12 at 472 ms. ynet.co.il shows 27 companies with 20 early, gamewith.jp 14 with 13, and gsmarena.com 11 with 9.
What an unclassified host can still tell you
A hostname without a catalogue entry usually disappears from tracker reporting, and dns-finder.com is a good argument for counting the uncatalogued anyway. It ranks 54th of the 88 companies here by site count, which is unremarkable, but its co-presence profile is as rigid as co-presence data can be, and its sites sit in the top dozen of that field for both companies contacted and requests made. If you found this name in a blocker log, the practical answer is that it travels as part of a set, and the set is an ad-delivery stack.
| Site | Companies | Before consent | First contact |
|---|---|---|---|
| time.com | 26 | 22 | 157 ms |
| imgur.com | 14 | 14 | 216 ms |
| theverge.com | 21 | 21 | 271 ms |
| nexusmods.com | 17 | 12 | 472 ms |
| letterboxd.com | 10 | 10 | 251 ms |
| gsmarena.com | 11 | 9 | 703 ms |
| olx.pl | 14 | 6 | 1152 ms |
| lanacion.com.ar | 20 | 20 | 396 ms |
| ynet.co.il | 27 | 20 | 506 ms |
| otomoto.pl | 12 | 8 | 677 ms |
| gamewith.jp | 14 | 13 | 731 ms |
| myinstants.com | 11 | 11 | 524 ms |
| Tool | Sites |
|---|---|
| IAB TCF consent tool | 55 |
| OneTrust | 16 |
| Cookiebot | 4 |
| Usercentrics | 1 |
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.
- ad-delivery.netTogether on 79 of these sites
- btloader.comTogether on 79 of these sites
- GoogleTogether on 61 of these sites
- Amazon AdsTogether on 35 of these sites
- ComscoreTogether on 26 of these sites
- fastclick.netTogether on 21 of these sites
- crwdcntrl.netTogether on 18 of these sites
- jsDelivrTogether on 15 of these sites
Questions
What is dns-finder.com?
An uncatalogued hostname in this index: no vendor name, no category, no tracking classification. It appeared on 79 of the 5,294 sites measured, always alongside ad-delivery.net and btloader.com, which were present on all 79.
Should I block it?
This index does not make blocking recommendations, and it does not classify this host as tracking or as anything else. What it records is that its sites contact a median of 17 companies over 80 requests, which is 10th of the 88 companies indexed on both counts.
Why do 76 of 79 sites show a consent banner?
Because this group is European-facing and ad-financed. An IAB TCF consent tool was seen alongside 55 of them and OneTrust alongside 16 — a distribution that follows the requirements of programmatic advertising rather than of the site itself.
How early does contact happen on these pages?
Early contact was recorded on 75 of the 79 sites, and the median first contact landed at 524 ms, the 8th-lowest of the 88 companies here. On the median site, 13 companies had been contacted before an answer could be registered.