webtracking.org
Data report · crawl of 2026-06-01

The State of Web Tracking

What actually runs on the web, who owns it, and how it behaves — measured from 15.7M root pages in the public HTTP Archive crawl, not from surveys. Eight sections: adoption, market share, page burden, the entities behind the requests, the cookies they set, and which trackers travel together. Every percentage below shows the two counts it divides, every chart has its rows as a table and a CSV, and the full method and all ten queries are published.

68.3% of pages fire at least one request to a known tracker 10,732,563 / 15,707,041 pages
79.8% of pages make at least one request to a Google-owned domain 12,536,065 / 15,707,041 pages
6 distinct third-party domains contacted by the median page median of 14,576,517 pages
51.2% of pages load googletagmanager.com 8,041,323 / 15,707,041 pages
13.5% of pages show a detectable consent platform 2,113,504 / 15,706,731 pages
40% of pages with analytics run two or more analytics tools 3,943,906 / 9,911,318 pages

Every number here is checkable. The source is the public HTTP Archive crawl on BigQuery — not a private dataset — so the ten queries that produced this report can be re-run by anyone against the same tables. See the arithmetic · download the data · read the limits.

Advertising / ad-techAnalytics & monitoringSocial & videoPlatforms & infraMartech, consent & other

1 · Adoption: analytics keeps growing, consent tooling doesn't

Share of pages running each technology category, across the last four quarterly crawls. Analytics rose from 63.0% to 65.6% of all pages; cookie-compliance tooling is flat at ~13.5%. The gap between the two is the consent debt of the web.

0% 20% 40% 60% Q3 ’25Q4 ’25Q1 ’26Q2 ’26 Analytics — Q3 ’25: 63.0% of 15.9M pages Analytics — Q4 ’25: 66.1% of 15.8M pages Analytics — Q1 ’26: 66.0% of 15.9M pages Analytics — Q2 ’26: 65.6% of 15.7M pages Tag managers — Q3 ’25: 26.6% of 15.9M pages Tag managers — Q4 ’25: 26.8% of 15.8M pages Tag managers — Q1 ’26: 26.6% of 15.9M pages Tag managers — Q2 ’26: 26.4% of 15.7M pages Cookie compliance — Q3 ’25: 13.6% of 15.9M pages Cookie compliance — Q4 ’25: 13.8% of 15.8M pages Cookie compliance — Q1 ’26: 13.8% of 15.9M pages Cookie compliance — Q2 ’26: 13.5% of 15.7M pages A/B Testing — Q3 ’25: 3.1% of 15.9M pages A/B Testing — Q4 ’25: 3.2% of 15.8M pages A/B Testing — Q1 ’26: 3.3% of 15.9M pages A/B Testing — Q2 ’26: 3.3% of 15.7M pages Customer data platform — Q3 ’25: 1.2% of 15.9M pages Customer data platform — Q4 ’25: 1.1% of 15.8M pages Customer data platform — Q1 ’26: 1.1% of 15.9M pages Customer data platform — Q2 ’26: 1.1% of 15.7M pages Analytics 65.6% Tag managers 26.4% Cookie compliance 13.5% A/B Testing 3.3% Customer data platform 1.1%
Share of root pages with the category detected (Wappalyzer-based), mobile crawl. n ≈ 15.7–15.9M pages per quarter.
Data table
CategoryQ3 ’25Q4 ’25Q1 ’26Q2 ’26
Analytics63.0%66.1%66.0%65.6%
Tag managers26.6%26.8%26.6%26.4%
Cookie compliance13.6%13.8%13.8%13.5%
A/B Testing3.1%3.2%3.3%3.3%
Customer data platform1.2%1.1%1.1%1.1%

Latest crawl: Analytics 10,303,605 of 15,706,731 pages · Cookie compliance 2,113,504 of 15,706,731. Per-quarter counts are in the CSV.

4 crawls · n = 15,706,731 pages in the latest adoption-by-category.csv the query

2 · The analytics market, from the top 1k to the top 1M

Google Analytics sits on 56.0% of the top-1M sites — but only 49.7% of the top 1k, versus a peak of 60.5% around the top 10k. The largest properties are exactly where the alternatives (Snowplow, Matomo, first-party pipelines) show up most.

0% 20% 40% 60% top 1k (n=748 pages): Google Analytics on 49.7% 50% top 1k top 5k (n=3k pages): Google Analytics on 59.4% 59% top 5k top 10k (n=4k pages): Google Analytics on 60.5% 61% top 10k top 50k (n=30k pages): Google Analytics on 58.5% 59% top 50k top 100k (n=37k pages): Google Analytics on 57.2% 57% top 100k top 500k (n=304k pages): Google Analytics on 55.9% 56% top 500k top 1M (n=394k pages): Google Analytics on 56.0% 56% top 1M
Google Analytics only. Share of pages in each CrUX rank bucket where GA is detected, 2026-06-01 crawl. Top-1k bucket is small (n=748 root pages, mobile).

…and the rest of the field

The same rank buckets, now with the four next-largest platforms plotted alongside GA. The challengers behave differently from each other: Snowplow concentrates in the top 10k, Clarity grows toward the long tail, and Adobe Analytics runs on 2.5% of the top 1k but 0.50% of the top 1M.

0% 20% 40% 60% top 1ktop 5ktop 10ktop 50ktop 100ktop 500ktop 1M Google Analytics — top 1k: 49.7% Google Analytics — top 5k: 59.4% Google Analytics — top 10k: 60.5% Google Analytics — top 50k: 58.5% Google Analytics — top 100k: 57.2% Google Analytics — top 500k: 55.9% Google Analytics — top 1M: 56.0% Facebook Pixel — top 1k: 10.3% Facebook Pixel — top 5k: 18.6% Facebook Pixel — top 10k: 19.4% Facebook Pixel — top 50k: 20.2% Facebook Pixel — top 100k: 21.2% Facebook Pixel — top 500k: 23.5% Facebook Pixel — top 1M: 24.6% Cloudflare Browser Insights — top 1k: 15.1% Cloudflare Browser Insights — top 5k: 21.5% Cloudflare Browser Insights — top 10k: 23.7% Cloudflare Browser Insights — top 50k: 24.6% Cloudflare Browser Insights — top 100k: 23.3% Cloudflare Browser Insights — top 500k: 21.4% Cloudflare Browser Insights — top 1M: 18.5% Microsoft Clarity — top 1k: 4.0% Microsoft Clarity — top 5k: 10.3% Microsoft Clarity — top 10k: 9.9% Microsoft Clarity — top 50k: 11.2% Microsoft Clarity — top 100k: 11.1% Microsoft Clarity — top 500k: 10.8% Microsoft Clarity — top 1M: 9.8% TikTok Pixel — top 1k: 2.9% TikTok Pixel — top 5k: 5.9% TikTok Pixel — top 10k: 6.9% TikTok Pixel — top 50k: 7.3% TikTok Pixel — top 100k: 6.8% TikTok Pixel — top 500k: 6.0% TikTok Pixel — top 1M: 4.9% Google Analytics 56.0% Facebook Pixel 24.6% Cloudflare Browser Insights 18.5% Microsoft Clarity 9.8% TikTok Pixel 4.9%
Wappalyzer-based detection per CrUX rank bucket, 2026-06-01 crawl (top-1k n=748 root pages, mobile). Legend values are the top-1M share.
Every analytics technology by bucket — including Adobe and the mid-market
Technologytop 1ktop 5ktop 10ktop 50ktop 100ktop 500ktop 1M
Google Analytics49.7%59.4%60.5%58.5%57.2%55.9%56.0%
Facebook Pixel10.3%18.6%19.4%20.2%21.2%23.5%24.6%
Cloudflare Browser Insights15.1%21.5%23.7%24.6%23.3%21.4%18.5%
Microsoft Clarity4.0%10.3%9.9%11.2%11.1%10.8%9.8%
TikTok Pixel2.9%5.9%6.9%7.3%6.8%6.0%4.9%
Hotjar1.9%3.1%3.6%3.6%3.7%3.8%3.7%
Site Kit···1.5%1.9%2.4%3.4%
Snowplow Analytics14.0%15.9%12.8%10.8%7.9%4.9%3.4%
Yandex.Metrika3.2%4.5%4.4%3.7%2.9%2.7%2.8%
Matomo Analytics4.1%4.7%4.0%3.3%2.9%2.8%2.5%
Linkedin Insight Tag·1.7%2.1%2.2%2.4%2.4%2.3%
Pinterest Conversion Tag1.3%2.9%2.4%2.4%2.2%1.8%1.3%
comScore4.9%5.4%4.8%3.1%2.2%1.2%0.9%
HubSpot Analytics·····0.8%0.9%
PixelYourSite······0.8%
Datadog3.3%3.9%3.4%2.3%1.8%1.0%0.7%
Quantcast Measure·1.8%1.4%1.3%1.2%0.9%0.7%
Google Ads Conversion Tracking2.0%2.3%1.4%1.5%1.2%0.9%0.7%
VWO1.2%·1.3%1.1%1.1%0.9%0.7%
Crazy Egg··1.0%0.9%0.8%0.8%0.6%
Naver Analytics0.8%····0.7%0.6%
Google Analytics Enhanced eCommerce······0.6%
MonsterInsights······0.6%
Plausible1.6%·1.4%1.0%0.8%0.6%0.5%
Adobe Analytics2.5%3.2%2.5%2.1%1.5%0.8%0.5%
Chartbeat2.7%3.2%2.2%1.6%0.8%··
Marfeel2.4%2.5%2.2%1.6%0.7%··
Adjust2.0%2.1%1.4%····
Liveinternet1.3%1.5%1.8%1.2%0.9%0.6%·
Gemius1.2%2.8%2.5%1.5%0.8%··
Ahrefs0.9%······
Appsflyer0.9%1.2%·····
Braze0.8%······
Dynatrace·1.5%1.6%1.4%1.0%0.5%·
Mixpanel·1.4%·····
Contentsquare·1.2%·····
Kwai pixel·····0.5%·

· = outside that bucket's top 15 (below the extract's cut), not necessarily zero.

The privacy-first long tail, full-crawl

Bucket top-15s hide the small platforms entirely — so we measured their full-crawl footprint directly:

TechnologyPagesShare of crawl
Cloudflare Browser Insights1,858,28811.831%
Snowplow Analytics429,3492.734%
Matomo Analytics330,5802.105%
Plausible77,2950.492%
Umami35,7810.228%
PostHog35,7700.228%
Mixpanel31,4710.200%
Amplitude25,6440.163%
Fathom12,3260.079%
Heap6,9860.044%
Simple Analytics4,6190.029%
GoatCounter1,5440.010%

7 rank buckets · long tail measured across all 15,707,041 pages analytics-market-share.csv analytics-long-tail.csv the query

3 · What the average page actually loads

Share of pages making at least one request matched by our open fingerprint library (66 vendors), by category. 10,732,563 of 15,707,041 pages (68.3%) talk to at least one known tracker; the average page makes 6.0 such requests.

Any known tracker Any known tracker: 68.3% of pages · avg 5.99 matched requests/page 68.3% Analytics Analytics: 56.3% of pages · avg 1.31 matched requests/page 56.3% Tag managers Tag managers: 51.3% of pages · avg 1.17 matched requests/page 51.3% Advertising Advertising: 31.1% of pages · avg 2.41 matched requests/page 31.1% Social pixels Social pixels: 17.9% of pages · avg 0.57 matched requests/page 17.9% Error monitoring Error monitoring: 6.8% of pages · avg 0.18 matched requests/page 6.8% Session replay Session replay: 6.6% of pages · avg 0.28 matched requests/page 6.6% Consent / CMP Consent / CMP: 3.6% of pages · avg 0.18 matched requests/page 3.6% Experimentation Experimentation: 0.8% of pages · avg 0.05 matched requests/page 0.8% CDP CDP: 0.4% of pages · avg 0.02 matched requests/page 0.4%
Request-level detection against the 2026-06-01 crawl (15.7M pages). Categories are not exclusive — one page can match several.
Data table — the counts behind every bar
CategoryPages with ≥1 matchPages in crawlShareAvg matched req/page
Any known tracker 10,732,563 15,707,041 68.3% 5.99
Analytics 8,850,696 15,707,041 56.3% 1.31
Tag managers 8,051,425 15,707,041 51.3% 1.17
Advertising 4,886,715 15,707,041 31.1% 2.41
Social pixels 2,806,639 15,707,041 17.9% 0.57
Error monitoring 1,068,560 15,707,041 6.8% 0.18
Session replay 1,034,556 15,707,041 6.6% 0.28
Consent / CMP 572,213 15,707,041 3.6% 0.18
Experimentation 119,534 15,707,041 0.8% 0.05
CDP 59,144 15,707,041 0.4% 0.02

“Any known tracker” is a rollup across all 66 vendors, not the sum of the rows — a page matching both an analytics and an advertising rule is counted once.

10,732,563 / 15,707,041 = 68.3% tracking-request-share.csv how this was computed

Put sections 1 and 3 together: 68.3% of pages send data to a known tracker, while 13.5% run a detectable consent platform. Even allowing for consent built in-house, the distance between those numbers is the story.

4 · Who owns the surveillance web

Third-party domains grouped by parent entity (our open entity map — 43 owners over 102 domains, deduplicated at page level in BigQuery so a page loading four Google domains counts once). Google (Alphabet) reaches 79.8% · Cloudflare reaches 26.1% · Meta reaches 19.7% · jsdelivr.net reaches 10.2% · Amazon reaches 9.9% of all pages.

Google (Alphabet) Google (Alphabet): reaches 79.8% of pages · 211.7M requests · 4.2% of its responses set cookies 79.8% Cloudflare Cloudflare: reaches 26.1% of pages · 9.6M requests · 0.7% of its responses set cookies 26.1% Meta Meta: reaches 19.7% of pages · 11.6M requests · 1.6% of its responses set cookies 19.7% jsdelivr.net jsdelivr.net: reaches 10.2% of pages · 4.3M requests · 0.0% of its responses set cookies 10.2% Amazon Amazon: reaches 9.9% of pages · 14.7M requests · 13.1% of its responses set cookies 9.9% Microsoft Microsoft: reaches 8.3% of pages · 15.7M requests · 32.2% of its responses set cookies 8.3% Automattic Automattic: reaches 5.7% of pages · 7.5M requests · 0.0% of its responses set cookies 5.7% Adobe Adobe: reaches 5.4% of pages · 5.7M requests · 20.2% of its responses set cookies 5.4% Sentry Sentry: reaches 4.8% of pages · 1.2M requests · 0.0% of its responses set cookies 4.8% Shopify Shopify: reaches 4.7% of pages · 31.8M requests · 2.5% of its responses set cookies 4.7% fontawesome.com fontawesome.com: reaches 4.6% of pages · 2.6M requests · 0.0% of its responses set cookies 4.6% jquery.com jquery.com: reaches 4.5% of pages · 869k requests · 0.0% of its responses set cookies 4.5% bootstrapcdn.com bootstrapcdn.com: reaches 4.1% of pages · 1.1M requests · 0.0% of its responses set cookies 4.1% Yandex Yandex: reaches 4.0% of pages · 10.1M requests · 60.4% of its responses set cookies 4.0% unpkg.com unpkg.com: reaches 3.8% of pages · 1.5M requests · 0.0% of its responses set cookies 3.8% Wix Wix: reaches 2.8% of pages · 87.5M requests · 0.2% of its responses set cookies 2.8% TikTok (ByteDance) TikTok (ByteDance): reaches 2.3% of pages · 3.1M requests · 12.4% of its responses set cookies 2.3% Criteo Criteo: reaches 2.0% of pages · 3.7M requests · 28.6% of its responses set cookies 2.0% Contentsquare (Hotjar) Contentsquare (Hotjar): reaches 1.7% of pages · 868k requests · 0.0% of its responses set cookies 1.7% LiveRamp LiveRamp: reaches 1.7% of pages · 1.9M requests · 94.3% of its responses set cookies 1.7%
Share of 15.7M pages making ≥1 request to any domain of the entity. Bar color = category (legend at the top of this report).

Where the requests go

The same entities sized by request volume — every third-party request across the crawl, 547.7M in total across the observed set:

Google (Alphabet): 211.7M requests (38.7%) Google (Alphabet) 38.7% Other observed third parties: 120.5M requests (22.0%) Other observed third parties 22.0% Wix: 87.5M requests (16.0%) Wix 16.0% Shopify: 31.8M requests (5.8%) Shopify 5.8% Microsoft: 15.7M requests (2.9%) Microsoft 2.9% Amazon: 14.7M requests (2.7%) Meta: 11.6M requests (2.1%) Meta 2.1% Yandex: 10.1M requests (1.9%) Cloudflare: 9.6M requests (1.8%) Automattic: 7.5M requests (1.4%) Adobe: 5.7M requests (1.0%) jsdelivr.net: 4.3M requests (0.8%) Criteo: 3.7M requests (0.7%) TikTok (ByteDance): 3.1M requests (0.6%) fontawesome.com: 2.6M requests (0.5%) LiveRamp: 1.9M requests (0.3%) unpkg.com: 1.5M requests (0.3%) Sentry: 1.2M requests (0.2%) bootstrapcdn.com: 1.1M requests (0.2%) jquery.com: 869k requests (0.2%) Contentsquare (Hotjar): 868k requests (0.2%)
Squarified by requests (additive). Small cells: hover for names; full data in the table.
Entity table (top 40)
EntityCategoryPagesReachRequestsSets cookies
Google (Alphabet)Advertising / ad-tech12,536,06579.8%211.7M4.2%
CloudflarePlatforms & infra4,094,49526.1%9.6M0.7%
MetaSocial & video3,096,15819.7%11.6M1.6%
jsdelivr.netPlatforms & infra1,608,83310.2%4.3M—
AmazonAdvertising / ad-tech1,557,7989.9%14.7M13.1%
MicrosoftAdvertising / ad-tech1,296,7808.3%15.7M32.2%
AutomatticPlatforms & infra896,4805.7%7.5M—
AdobeMartech, consent & other842,5695.4%5.7M20.2%
SentryAdvertising / ad-tech757,7494.8%1.2M0.0%
ShopifyPlatforms & infra736,1854.7%31.8M2.5%
fontawesome.comPlatforms & infra723,9284.6%2.6M0.0%
jquery.comPlatforms & infra710,7594.5%869k—
bootstrapcdn.comPlatforms & infra637,2694.1%1.1M0.0%
YandexAdvertising / ad-tech621,1364.0%10.1M60.4%
unpkg.comPlatforms & infra595,0633.8%1.5M—
WixPlatforms & infra446,8422.8%87.5M0.2%
TikTok (ByteDance)Social & video365,3642.3%3.1M12.4%
CriteoAdvertising / ad-tech310,7112.0%3.7M28.6%
Contentsquare (Hotjar)Analytics & monitoring267,6151.7%868k0.0%
LiveRampAdvertising / ad-tech267,1111.7%1.9M94.3%
featureassets.orgAdvertising / ad-tech252,8191.6%256k100.0%
SquarespacePlatforms & infra250,2991.6%15.5M0.0%
prodregistryv2.orgAdvertising / ad-tech248,9681.6%501k100.0%
ID5Advertising / ad-tech248,7041.6%2.3M50.3%
bidswitch.netAdvertising / ad-tech233,7771.5%3.4M48.8%
pinterest.comSocial & video219,0451.4%860k23.6%
Comcast (FreeWheel)Advertising / ad-tech217,0201.4%2.4M98.3%
klaviyo.comMartech, consent & other211,4171.3%5.3M0.0%
simpli.fiAdvertising / ad-tech205,9541.3%1.2M20.6%
creativecdn.comAdvertising / ad-tech193,8721.2%1.4M13.6%
cookiebot.comMartech, consent & other189,8191.2%213k0.0%
3lift.comAdvertising / ad-tech189,6151.2%2.5M82.8%
trustindex.ioMartech, consent & other188,8721.2%383k0.0%
turn.comAdvertising / ad-tech187,3401.2%687k99.5%
liadm.comAdvertising / ad-tech186,8951.2%1.6M96.8%
stackadapt.comAdvertising / ad-tech186,2441.2%864k28.4%
temu.comMartech, consent & other184,6511.2%998k99.9%
adform.netAdvertising / ad-tech182,1141.2%2.1M93.5%
CookieYesMartech, consent & other177,8511.1%1.6M—
outbrain.comAdvertising / ad-tech177,1741.1%1.1M90.4%

Reach share = pages ÷ 15,707,041 crawl pages.

The individual domains with the widest reach

Below the entity layer: the 15 most-seen third-party domains, with how many of each domain's requests set cookies. Font/CDN infrastructure is marked — reach isn't automatically tracking — but note doubleclick.net on 29.7% of pages with 24% of its requests setting cookies.

DomainReach (pages)RequestsSets cookies
googleapis.com infra
57.4%
30.8M 0.4%
gstatic.com infra
55.2%
45.9M —
googletagmanager.com
51.2%
19.7M —
google.com
40.9%
34.4M 2.8%
google-analytics.com
39.7%
11.6M —
doubleclick.net
29.7%
22.6M 23.6%
facebook.net
18.9%
6.8M 0.0%
cloudflare.com infra
15.8%
7.3M 0.9%
cloudflareinsights.com infra
12.9%
2.3M —
jsdelivr.net infra
10.2%
4.3M —
googlesyndication.com
8.1%
16.4M —
youtube.com
6.7%
13.3M 17.9%
googleadservices.com
6.2%
3.8M 0.0%
cloudfront.net
5.6%
8.4M 11.3%
ytimg.com
5.5%
1.9M —

“Sets cookies” = share of the domain's responses carrying Set-Cookie. “infra” = primarily fonts/CDN/static assets.

43 entities · top 100 domains · n = 15,707,041 pages entity-reach.csv third-party-domains.csv the entity map

5 · The cookie census

Third-party Set-Cookie responses aggregated by cookie name — measured on a 10% block sample of the crawl (header values are the most expensive column in the dataset; counts below are scaled estimates, shares are exact within the sample) — and classified with our open cookie database; names outside every cookie DB are attributed to the entity of their top-setting domain. 26 of the top 40 classify.

CookieVendorPurposeTop setterTimes set
__cf_bm Cloudflare necessary leadconnectorhq.com 15.4M
audit Magnite advertising rubiconproject.com 5.6M
audit_p Magnite advertising rubiconproject.com 5.6M
test_cookie Google DoubleClick advertising doubleclick.net 5M
khaos Magnite advertising rubiconproject.com 4.9M
receive-cookie-deprecation Magnite advertising rubiconproject.com 4.9M
khaos_p Magnite advertising rubiconproject.com 4.8M
uid Unknown unknown adform.net 4.4M
bh Yandex advertising yandex.com 3.5M
i OpenX advertising openx.net 3.1M
uids Unknown unknown pixad.com.tr 2.8M
tuuid Unknown unknown 360yield.com 2.8M
TDID The Trade Desk advertising adsrvr.org 2.7M
vdz_sync Unknown unknown cootlogix.com 2.6M
PugT PubMatic advertising pubmatic.com 2.6M
TDCPM The Trade Desk advertising adsrvr.org 2.6M
ljt_reader Sovrn advertising lijit.com 2.5M
MUID Microsoft advertising clarity.ms 2.4M
33x_ps Unknown unknown 33across.com 2.4M
ayl_visitor Unknown unknown omnitagjs.com 2.3M
__Secure-YEC Google (Alphabet) advertising youtube.com 2.3M
VISITOR_INFO1_LIVE Google (Alphabet) advertising youtube.com 2.2M
VISITOR_PRIVACY_METADATA Google (Alphabet) advertising youtube.com 2.2M
pi PubMatic advertising pubmatic.com 2.2M
AWSALB AWS Elastic Load Balancer necessary cloudfront.net 2.1M

How long they live

Lifetime mix for the ten most-set cookie names (from Max-Age; darker = shorter, lighter = longer):

__cf_bm __cf_bm — Expires-only: 100.0% audit audit — ≤1 year: 100.0% audit_p audit_p — ≤1 year: 100.0% test_cookie test_cookie — Expires-only: 100.0% khaos khaos — ≤1 year: 100.0% receive-cookie-deprecation receive-cookie-deprecation — ≤1 year: 65.4% receive-cookie-deprecation — >1 year: 19.6% receive-cookie-deprecation — Expires-only: 15.0% khaos_p khaos_p — ≤1 year: 100.0% uid uid — session: 0.1% uid — ≤30 days: 4.6% uid — ≤1 year: 8.2% uid — >1 year: 0.9% uid — Expires-only: 86.2% bh bh — Expires-only: 100.0% i i — ≤1 year: 57.3% i — Expires-only: 42.7% session ≤1 day ≤30 days ≤1 year >1 year Expires-only
Share of each name's Set-Cookie responses by declared lifetime. "Expires-only" = an Expires date with no Max-Age (not bucketed).
Data table — lifetime mix per cookie name
Cookiesession≤1 day≤30 days≤1 year>1 yearExpires-only
__cf_bm—————100.0%
audit———100.0%——
audit_p———100.0%——
test_cookie—————100.0%
khaos———100.0%——
receive-cookie-deprecation———65.4%19.6%15.0%
khaos_p———100.0%——
uid0.1%0.0%4.6%8.2%0.9%86.2%
bh—————100.0%
i0.0%——57.3%—42.7%

Rows are ratios within each name's own Set-Cookie responses, so they are unaffected by the 10% sample. Absolute counts for all 40 names are in the CSV.

40 cookie names · 10% block sample · counts ×10 estimated cookie-census.csv sampling note

6 · The third-party burden of an average page

Distinct third-party domains contacted per page: median 6, p90 15, p99 66. In requests: median 24, p90 125 third-party requests per page load.

1 third-party domains: 879k pages (5.6%) 2 third-party domains: 1.4M pages (8.6%) 3 third-party domains: 1.4M pages (8.8%) 4 third-party domains: 1.4M pages (8.9%) 5 third-party domains: 1.4M pages (9.0%) 5 6 third-party domains: 1.3M pages (8.0%) 7 third-party domains: 1.1M pages (7.2%) 8 third-party domains: 1M pages (6.5%) 9 third-party domains: 856k pages (5.4%) 10 third-party domains: 685k pages (4.4%) 10 11 third-party domains: 560k pages (3.6%) 12 third-party domains: 435k pages (2.8%) 13 third-party domains: 343k pages (2.2%) 14 third-party domains: 276k pages (1.8%) 15 third-party domains: 214k pages (1.4%) 15 16 third-party domains: 173k pages (1.1%) 17 third-party domains: 142k pages (0.9%) 18 third-party domains: 119k pages (0.8%) 19 third-party domains: 100k pages (0.6%) 20 third-party domains: 83k pages (0.5%) 20 21 third-party domains: 77k pages (0.5%) 22 third-party domains: 58k pages (0.4%) 23 third-party domains: 48k pages (0.3%) 24 third-party domains: 41k pages (0.3%) 25 third-party domains: 39k pages (0.2%) 25 26 third-party domains: 31k pages (0.2%) 27 third-party domains: 37k pages (0.2%) 28 third-party domains: 42k pages (0.3%) 29 third-party domains: 24k pages (0.2%) 30 third-party domains: 20k pages (0.1%) 30 31 third-party domains: 16k pages (0.1%) 32 third-party domains: 13k pages (0.1%) 33 third-party domains: 12k pages (0.1%) 34 third-party domains: 11k pages (0.1%) 35 third-party domains: 9k pages (0.1%) 35 36 third-party domains: 9k pages (0.1%) 37 third-party domains: 8k pages (0.1%) 38 third-party domains: 7k pages (0.0%) 39 third-party domains: 7k pages (0.0%) 40+ third-party domains: 236k pages (1.5%) 40 distinct third-party domains per page (pages with ≥1)
Pages with zero third parties are not in the extract; shares are of all 15.7M crawl pages.
Data table — quantiles and the full histogram
Measurep25p50p75p90p99Pages
Distinct third-party domains4610156614,576,517
Third-party requests9245912544114,576,517
Responses setting cookies0131114614,576,517
Third-party domains on the pagePagesShare of crawl
1879,3645.60%
21,358,3688.65%
31,384,6478.82%
41,397,5678.90%
51,414,8829.01%
61,263,8548.05%
71,125,6267.17%
81,019,7766.49%
9855,8705.45%
10684,5174.36%
11559,7023.56%
12434,6432.77%
13343,2862.19%
14276,4701.76%
15214,1111.36%
16173,1331.10%
17142,1660.91%
18119,1810.76%
1999,6100.63%
2083,1990.53%
2177,0600.49%
2257,5460.37%
2348,2510.31%
2441,4520.26%
2538,7610.25%
2630,7740.20%
2736,7100.23%
2841,8190.27%
2924,1970.15%
3020,3070.13%
3116,0710.10%
3213,4030.09%
3311,9810.08%
3410,7850.07%
359,3240.06%
369,0670.06%
378,4620.05%
387,4760.05%
397,0230.04%
40+236,0761.50%

n = 14,576,517 pages with ≥1 third party (of 15,707,041) page-burden.csv the query

7 · Which trackers travel together

Reading a row: of the pages running A, what share also run B? The grid exposes the bundles — the Google stack, the Microsoft stack, and how consent platforms attach to each.

Google AnalyticsGTMMeta PixelCF InsightsClarityYandexSnowplow AnalyticsCookieYesMatomo AnalyticsHotjarTikTok PixelCookiebot Google Analytics 45.0% of Google Analytics pages also run Google Tag Manager 45 25.3% of Google Analytics pages also run Facebook Pixel 12.6% of Google Analytics pages also run Cloudflare Browser Insights 8.6% of Google Analytics pages also run Microsoft Clarity 2.1% of Google Analytics pages also run Yandex.Metrika 4.2% of Google Analytics pages also run Snowplow Analytics 3.0% of Google Analytics pages also run CookieYes 1.7% of Google Analytics pages also run Matomo Analytics 3.1% of Google Analytics pages also run Hotjar 2.6% of Google Analytics pages also run TikTok Pixel 2.1% of Google Analytics pages also run Cookiebot GTM 88.0% of Google Tag Manager pages also run Google Analytics 88 32.5% of Google Tag Manager pages also run Facebook Pixel 33 14.1% of Google Tag Manager pages also run Cloudflare Browser Insights 13.7% of Google Tag Manager pages also run Microsoft Clarity 2.2% of Google Tag Manager pages also run Yandex.Metrika 6.6% of Google Tag Manager pages also run Snowplow Analytics 3.9% of Google Tag Manager pages also run CookieYes 2.5% of Google Tag Manager pages also run Matomo Analytics 5.0% of Google Tag Manager pages also run Hotjar 4.3% of Google Tag Manager pages also run TikTok Pixel 3.4% of Google Tag Manager pages also run Cookiebot Meta Pixel 84.7% of Facebook Pixel pages also run Google Analytics 85 55.8% of Facebook Pixel pages also run Google Tag Manager 56 14.0% of Facebook Pixel pages also run Cloudflare Browser Insights 15.3% of Facebook Pixel pages also run Microsoft Clarity 1.5% of Facebook Pixel pages also run Yandex.Metrika 2.3% of Facebook Pixel pages also run Snowplow Analytics 3.3% of Facebook Pixel pages also run CookieYes 1.8% of Facebook Pixel pages also run Matomo Analytics 6.5% of Facebook Pixel pages also run Hotjar 8.7% of Facebook Pixel pages also run TikTok Pixel 3.3% of Facebook Pixel pages also run Cookiebot CF Insights 54.1% of Cloudflare Browser Insights pages also run Google Analytics 54 31.1% of Cloudflare Browser Insights pages also run Google Tag Manager 31 17.9% of Cloudflare Browser Insights pages also run Facebook Pixel 5.9% of Cloudflare Browser Insights pages also run Microsoft Clarity 1.3% of Cloudflare Browser Insights pages also run Yandex.Metrika 3.5% of Cloudflare Browser Insights pages also run Snowplow Analytics 2.0% of Cloudflare Browser Insights pages also run CookieYes 1.3% of Cloudflare Browser Insights pages also run Matomo Analytics 2.0% of Cloudflare Browser Insights pages also run Hotjar 3.3% of Cloudflare Browser Insights pages also run TikTok Pixel 0.8% of Cloudflare Browser Insights pages also run Cookiebot Clarity 91.3% of Microsoft Clarity pages also run Google Analytics 91 74.7% of Microsoft Clarity pages also run Google Tag Manager 75 48.7% of Microsoft Clarity pages also run Facebook Pixel 49 14.7% of Microsoft Clarity pages also run Cloudflare Browser Insights 0.8% of Microsoft Clarity pages also run Yandex.Metrika 2.6% of Microsoft Clarity pages also run Snowplow Analytics 3.6% of Microsoft Clarity pages also run CookieYes 2.8% of Microsoft Clarity pages also run Matomo Analytics 6.9% of Microsoft Clarity pages also run Hotjar 7.7% of Microsoft Clarity pages also run TikTok Pixel 4.0% of Microsoft Clarity pages also run Cookiebot Yandex 34.1% of Yandex.Metrika pages also run Google Analytics 34 17.6% of Yandex.Metrika pages also run Google Tag Manager 7.3% of Yandex.Metrika pages also run Facebook Pixel 4.8% of Yandex.Metrika pages also run Cloudflare Browser Insights 1.1% of Yandex.Metrika pages also run Microsoft Clarity 1.0% of Yandex.Metrika pages also run Snowplow Analytics 0.0% of Yandex.Metrika pages also run CookieYes 0.0% of Yandex.Metrika pages also run Matomo Analytics 0.0% of Yandex.Metrika pages also run Hotjar 1.0% of Yandex.Metrika pages also run TikTok Pixel 0.0% of Yandex.Metrika pages also run Cookiebot Snowplow Analytics 77.3% of Snowplow Analytics pages also run Google Analytics 77 63.0% of Snowplow Analytics pages also run Google Tag Manager 63 13.0% of Snowplow Analytics pages also run Facebook Pixel 15.0% of Snowplow Analytics pages also run Cloudflare Browser Insights 4.5% of Snowplow Analytics pages also run Microsoft Clarity 1.2% of Snowplow Analytics pages also run Yandex.Metrika 0.0% of Snowplow Analytics pages also run CookieYes 4.3% of Snowplow Analytics pages also run Matomo Analytics 1.5% of Snowplow Analytics pages also run Hotjar 2.0% of Snowplow Analytics pages also run TikTok Pixel 3.8% of Snowplow Analytics pages also run Cookiebot CookieYes 61.4% of CookieYes pages also run Google Analytics 61 40.7% of CookieYes pages also run Google Tag Manager 41 20.3% of CookieYes pages also run Facebook Pixel 9.4% of CookieYes pages also run Cloudflare Browser Insights 6.9% of CookieYes pages also run Microsoft Clarity 0.0% of CookieYes pages also run Yandex.Metrika 0.0% of CookieYes pages also run Snowplow Analytics 1.9% of CookieYes pages also run Matomo Analytics 3.1% of CookieYes pages also run Hotjar 1.7% of CookieYes pages also run TikTok Pixel 0.0% of CookieYes pages also run Cookiebot Matomo Analytics 41.1% of Matomo Analytics pages also run Google Analytics 41 30.5% of Matomo Analytics pages also run Google Tag Manager 31 12.9% of Matomo Analytics pages also run Facebook Pixel 7.1% of Matomo Analytics pages also run Cloudflare Browser Insights 6.3% of Matomo Analytics pages also run Microsoft Clarity 0.0% of Matomo Analytics pages also run Yandex.Metrika 5.6% of Matomo Analytics pages also run Snowplow Analytics 2.2% of Matomo Analytics pages also run CookieYes 2.2% of Matomo Analytics pages also run Hotjar 1.7% of Matomo Analytics pages also run TikTok Pixel 3.6% of Matomo Analytics pages also run Cookiebot Hotjar 93.3% of Hotjar pages also run Google Analytics 93 75.9% of Hotjar pages also run Google Tag Manager 76 58.1% of Hotjar pages also run Facebook Pixel 58 14.0% of Hotjar pages also run Cloudflare Browser Insights 19.2% of Hotjar pages also run Microsoft Clarity 0.0% of Hotjar pages also run Yandex.Metrika 2.4% of Hotjar pages also run Snowplow Analytics 4.5% of Hotjar pages also run CookieYes 2.8% of Hotjar pages also run Matomo Analytics 9.5% of Hotjar pages also run TikTok Pixel 7.1% of Hotjar pages also run Cookiebot TikTok Pixel 84.0% of TikTok Pixel pages also run Google Analytics 84 70.8% of TikTok Pixel pages also run Google Tag Manager 71 83.8% of TikTok Pixel pages also run Facebook Pixel 84 24.9% of TikTok Pixel pages also run Cloudflare Browser Insights 23.2% of TikTok Pixel pages also run Microsoft Clarity 2.1% of TikTok Pixel pages also run Yandex.Metrika 3.5% of TikTok Pixel pages also run Snowplow Analytics 2.7% of TikTok Pixel pages also run CookieYes 2.2% of TikTok Pixel pages also run Matomo Analytics 10.3% of TikTok Pixel pages also run Hotjar 4.4% of TikTok Pixel pages also run Cookiebot Cookiebot 84.4% of Cookiebot pages also run Google Analytics 84 68.6% of Cookiebot pages also run Google Tag Manager 69 38.8% of Cookiebot pages also run Facebook Pixel 39 7.7% of Cookiebot pages also run Cloudflare Browser Insights 14.8% of Cookiebot pages also run Microsoft Clarity 0.0% of Cookiebot pages also run Yandex.Metrika 8.0% of Cookiebot pages also run Snowplow Analytics 0.0% of Cookiebot pages also run CookieYes 5.9% of Cookiebot pages also run Matomo Analytics 9.5% of Cookiebot pages also run Hotjar 5.4% of Cookiebot pages also run TikTok Pixel
Row-conditional shares (values ≥30% printed, in %). One blue, darker→lighter with magnitude; diagonal blank.
Data table — the 30 most common pairs (of 185)
Technology ATechnology BPages with bothOf A's pagesOf B's pages
Google AnalyticsGoogle Tag Manager 3,597,533 45.0% 88.0%
Facebook PixelGoogle Analytics 2,022,303 84.7% 25.3%
Facebook PixelGoogle Tag Manager 1,331,228 55.8% 32.5%
Cloudflare Browser InsightsGoogle Analytics 1,005,545 54.1% 12.6%
Google AnalyticsMicrosoft Clarity 683,390 8.6% 91.3%
Cloudflare Browser InsightsGoogle Tag Manager 578,166 31.1% 14.1%
Google Tag ManagerMicrosoft Clarity 558,676 13.7% 74.7%
Facebook PixelMicrosoft Clarity 364,596 15.3% 48.7%
Cloudflare Browser InsightsFacebook Pixel 333,269 17.9% 14.0%
Google AnalyticsSnowplow Analytics 331,750 4.2% 77.3%
Google Tag ManagerSnowplow Analytics 270,675 6.6% 63.0%
Google AnalyticsHotjar 250,039 3.1% 93.3%
CookieYesGoogle Analytics 238,486 61.4% 3.0%
Google AnalyticsTikTok Pixel 207,817 2.6% 84.0%
Facebook PixelTikTok Pixel 207,372 8.7% 83.8%
Google Tag ManagerHotjar 203,194 5.0% 75.9%
Google Tag ManagerTikTok Pixel 175,186 4.3% 70.8%
Google AnalyticsYandex.Metrika 170,477 2.1% 34.1%
CookiebotGoogle Analytics 170,392 84.4% 2.1%
CookieYesGoogle Tag Manager 158,024 40.7% 3.9%
Facebook PixelHotjar 155,676 6.5% 58.1%
CookiebotGoogle Tag Manager 138,482 68.6% 3.4%
Google AnalyticsMatomo Analytics 135,773 1.7% 41.1%
Google Tag ManagerOneTrust 112,999 2.8% 75.3%
Cloudflare Browser InsightsMicrosoft Clarity 109,989 5.9% 14.7%
Google Tag ManagerMatomo Analytics 100,952 2.5% 30.5%
Google AnalyticsOneTrust 97,928 1.2% 65.3%
Google AnalyticsNew Relic 96,616 1.2% 69.4%
DatadogGoogle Analytics 94,000 60.2% 1.2%
Google Tag ManagerYandex.Metrika 88,144 2.2% 17.6%

All 185 pairs are in the CSV. Pairs seen on fewer than 5,000 pages are cut from the extract.

Analytics stacking

Of pages running at least one analytics tool, 39.8% run two or more at once — double-tracking is normal, not an edge case.

Analytics tools on the pagePagesShare of crawl
0484,7764.7%
15,967,41257.4%
22,742,24926.4%
3879,8398.5%
4242,2712.3%
564,4800.6%
6+15,0670.1%

3,943,906 / 9,911,318 pages with analytics run 2+ = 39.8% tech-cooccurrence.csv analytics-stacking.csv the arithmetic

8 · Reach vs. cookie behavior

Every one of the top 200 third-party domains: how much of the web it touches (x) against how often its responses set cookies (y). The top-right is the surveillance sweet spot; wide-reach zero-cookie domains are mostly fonts and CDNs.

0% 25% 50% 75% 100% 0%20%40%60% reach — share of pages the domain appears on googleapis.com: reach 57.4% · 0.4% of responses set cookies gstatic.com: reach 55.2% · 0.0% of responses set cookies googletagmanager.com: reach 51.2% · 0.0% of responses set cookies google.com: reach 40.9% · 2.8% of responses set cookies google-analytics.com: reach 39.7% · 0.0% of responses set cookies doubleclick.net: reach 29.7% · 23.6% of responses set cookies facebook.net: reach 18.9% · 0.0% of responses set cookies cloudflare.com: reach 15.8% · 0.9% of responses set cookies cloudflareinsights.com: reach 12.9% · 0.0% of responses set cookies jsdelivr.net: reach 10.2% · 0.0% of responses set cookies googlesyndication.com: reach 8.1% · 0.0% of responses set cookies youtube.com: reach 6.7% · 17.9% of responses set cookies googleadservices.com: reach 6.2% · 0.0% of responses set cookies cloudfront.net: reach 5.6% · 11.3% of responses set cookies ytimg.com: reach 5.5% · 0.0% of responses set cookies bing.com: reach 5.4% · 58.5% of responses set cookies adtrafficquality.google: reach 5.1% · 0.0% of responses set cookies shopify.com: reach 4.7% · 0.1% of responses set cookies clarity.ms: reach 4.6% · 37.4% of responses set cookies fontawesome.com: reach 4.6% · 0.0% of responses set cookies jquery.com: reach 4.5% · 0.0% of responses set cookies shopifysvc.com: reach 4.5% · 0.0% of responses set cookies shop.app: reach 4.4% · 49.5% of responses set cookies amazonaws.com: reach 4.1% · 0.0% of responses set cookies bootstrapcdn.com: reach 4.1% · 0.0% of responses set cookies unpkg.com: reach 3.8% · 0.0% of responses set cookies typekit.net: reach 3.8% · 0.0% of responses set cookies sentry-cdn.com: reach 3.5% · 0.0% of responses set cookies yandex.ru: reach 3.5% · 75.7% of responses set cookies yandex.com: reach 3.3% · 67.0% of responses set cookies wp.com: reach 3.2% · 0.0% of responses set cookies facebook.com: reach 3.1% · 12.5% of responses set cookies linkedin.com: reach 2.9% · 72.6% of responses set cookies wixstatic.com: reach 2.8% · 0.0% of responses set cookies parastorage.com: reach 2.8% · 0.0% of responses set cookies wix.com: reach 2.8% · 0.1% of responses set cookies wixapps.net: reach 2.8% · 1.8% of responses set cookies w.org: reach 2.5% · 0.0% of responses set cookies merchant-center-analytics.goog: reach 2.5% · 0.0% of responses set cookies tiktok.com: reach 2.3% · 12.6% of responses set cookies googletagservices.com: reach 2.2% · 0.0% of responses set cookies adsrvr.org: reach 2.0% · 88.4% of responses set cookies adnxs.com: reach 2.0% · 2.3% of responses set cookies googleusercontent.com: reach 2.0% · 0.0% of responses set cookies criteo.com: reach 2.0% · 29.6% of responses set cookies tiktokw.us: reach 1.9% · 11.6% of responses set cookies rubiconproject.com: reach 1.9% · 61.1% of responses set cookies twitter.com: reach 1.8% · 29.7% of responses set cookies tapad.com: reach 1.8% · 99.9% of responses set cookies hotjar.com: reach 1.7% · 0.0% of responses set cookies openx.net: reach 1.7% · 33.5% of responses set cookies pubmatic.com: reach 1.7% · 66.7% of responses set cookies yahoo.com: reach 1.6% · 84.7% of responses set cookies rlcdn.com: reach 1.6% · 92.9% of responses set cookies amazon-adsystem.com: reach 1.6% · 34.7% of responses set cookies featureassets.org: reach 1.6% · 100.0% of responses set cookies crwdcntrl.net: reach 1.6% · 49.7% of responses set cookies prodregistryv2.org: reach 1.6% · 100.0% of responses set cookies id5-sync.com: reach 1.6% · 64.7% of responses set cookies squarespace.com: reach 1.6% · 0.0% of responses set cookies squarespace-cdn.com: reach 1.6% · 0.0% of responses set cookies sqspcdn.com: reach 1.5% · 0.0% of responses set cookies sentry.io: reach 1.5% · 0.0% of responses set cookies demdex.net: reach 1.5% · 94.5% of responses set cookies fbcdn.net: reach 1.5% · 0.0% of responses set cookies bidswitch.net: reach 1.5% · 48.8% of responses set cookies pippio.com: reach 1.4% · 99.9% of responses set cookies eu-1-id5-sync.com: reach 1.4% · 0.0% of responses set cookies pinterest.com: reach 1.4% · 23.6% of responses set cookies klaviyo.com: reach 1.3% · 0.0% of responses set cookies shopifycdn.com: reach 1.3% · 0.0% of responses set cookies licdn.com: reach 1.3% · 0.0% of responses set cookies simpli.fi: reach 1.3% · 20.6% of responses set cookies creativecdn.com: reach 1.2% · 13.6% of responses set cookies everesttech.net: reach 1.2% · 52.3% of responses set cookies cookiebot.com: reach 1.2% · 0.0% of responses set cookies 3lift.com: reach 1.2% · 82.8% of responses set cookies trustindex.io: reach 1.2% · 0.0% of responses set cookies turn.com: reach 1.2% · 99.5% of responses set cookies liadm.com: reach 1.2% · 96.8% of responses set cookies bidr.io: reach 1.2% · 97.2% of responses set cookies stackadapt.com: reach 1.2% · 28.4% of responses set cookies temu.com: reach 1.2% · 99.9% of responses set cookies adform.net: reach 1.2% · 93.5% of responses set cookies lijit.com: reach 1.2% · 92.9% of responses set cookies smartadserver.com: reach 1.1% · 48.0% of responses set cookies rfihub.com: reach 1.1% · 99.9% of responses set cookies outbrain.com: reach 1.1% · 90.4% of responses set cookies cdn-cookieyes.com: reach 1.1% · 0.0% of responses set cookies stripe.com: reach 1.1% · 14.7% of responses set cookies quantserve.com: reach 1.1% · 86.4% of responses set cookies agkn.com: reach 1.1% · 98.8% of responses set cookies yastatic.net: reach 1.1% · 0.0% of responses set cookies casalemedia.com: reach 1.1% · 84.3% of responses set cookies 33across.com: reach 1.1% · 65.0% of responses set cookies ipredictive.com: reach 1.1% · 99.5% of responses set cookies fwmrm.net: reach 1.1% · 100.0% of responses set cookies stripe.network: reach 1.1% · 0.0% of responses set cookies vimeo.com: reach 1.1% · 29.7% of responses set cookies cookieyes.com: reach 1.0% · 0.0% of responses set cookies 1rx.io: reach 1.0% · 8.7% of responses set cookies dotomi.com: reach 1.0% · 56.0% of responses set cookies ampproject.org: reach 1.0% · 0.0% of responses set cookies 360yield.com: reach 1.0% · 78.8% of responses set cookies blismedia.com: reach 1.0% · 92.7% of responses set cookies newrelic.com: reach 1.0% · 0.0% of responses set cookies opera.com: reach 1.0% · 99.6% of responses set cookies nr-data.net: reach 1.0% · 2.8% of responses set cookies media.net: reach 1.0% · 38.2% of responses set cookies chimpstatic.com: reach 1.0% · 0.1% of responses set cookies contextweb.com: reach 1.0% · 99.9% of responses set cookies onetag-sys.com: reach 1.0% · 20.6% of responses set cookies mathtag.com: reach 1.0% · 68.3% of responses set cookies sitescout.com: reach 1.0% · 98.1% of responses set cookies sharethrough.com: reach 1.0% · 91.9% of responses set cookies eyeota.net: reach 1.0% · 99.4% of responses set cookies hubspot.com: reach 0.9% · 68.3% of responses set cookies hs-banner.com: reach 0.9% · 98.4% of responses set cookies inmobi.com: reach 0.9% · 20.7% of responses set cookies hs-analytics.net: reach 0.9% · 98.5% of responses set cookies onaudience.com: reach 0.9% · 98.3% of responses set cookies appier.net: reach 0.9% · 96.6% of responses set cookies blogger.com: reach 0.9% · 5.6% of responses set cookies hs-scripts.com: reach 0.9% · 75.4% of responses set cookies adkernel.com: reach 0.9% · 99.1% of responses set cookies deepintent.com: reach 0.9% · 99.8% of responses set cookies hotjar.io: reach 0.9% · 0.0% of responses set cookies smaato.net: reach 0.9% · 97.8% of responses set cookies a-mo.net: reach 0.9% · 47.4% of responses set cookies wsimg.com: reach 0.9% · 0.0% of responses set cookies tribalfusion.com: reach 0.9% · 74.1% of responses set cookies semasio.net: reach 0.9% · 99.9% of responses set cookies cookielaw.org: reach 0.9% · 0.0% of responses set cookies mfadsrvr.com: reach 0.9% · 91.7% of responses set cookies cognitivlabs.com: reach 0.9% · 82.6% of responses set cookies adentifi.com: reach 0.9% · 2.9% of responses set cookies admanmedia.com: reach 0.9% · 99.4% of responses set cookies gumgum.com: reach 0.8% · 10.5% of responses set cookies scorecardresearch.com: reach 0.8% · 37.0% of responses set cookies secureserver.net: reach 0.8% · 0.0% of responses set cookies advolve.io: reach 0.8% · 96.5% of responses set cookies yadro.ru: reach 0.8% · 63.6% of responses set cookies loopme.me: reach 0.8% · 99.7% of responses set cookies yieldmo.com: reach 0.8% · 96.0% of responses set cookies thrtle.com: reach 0.8% · 99.8% of responses set cookies mxptint.net: reach 0.8% · 61.2% of responses set cookies krushmedia.com: reach 0.8% · 50.4% of responses set cookies acuityplatform.com: reach 0.8% · 98.8% of responses set cookies mgid.com: reach 0.8% · 76.2% of responses set cookies onetrust.com: reach 0.8% · 0.0% of responses set cookies tracookiepixel.xyz: reach 0.8% · 100.0% of responses set cookies hsforms.com: reach 0.8% · 67.2% of responses set cookies adgrx.com: reach 0.8% · 99.9% of responses set cookies a-mx.com: reach 0.7% · 99.6% of responses set cookies sonobi.com: reach 0.7% · 99.1% of responses set cookies firebaseapp.com: reach 0.7% · 0.0% of responses set cookies pacvue.com: reach 0.7% · 99.9% of responses set cookies vistarsagency.com: reach 0.7% · 23.9% of responses set cookies loudecho.ai: reach 0.7% · 96.2% of responses set cookies intentiq.com: reach 0.7% · 95.2% of responses set cookies mail.ru: reach 0.7% · 0.0% of responses set cookies rezync.com: reach 0.7% · 99.9% of responses set cookies disqus.com: reach 0.7% · 93.9% of responses set cookies p7cloud.net: reach 0.7% · 0.0% of responses set cookies richaudience.com: reach 0.7% · 87.6% of responses set cookies criteo.net: reach 0.7% · 0.0% of responses set cookies amxrtb.com: reach 0.7% · 0.0% of responses set cookies presage.io: reach 0.7% · 78.4% of responses set cookies userway.org: reach 0.7% · 0.0% of responses set cookies digitalaudience.io: reach 0.7% · 0.0% of responses set cookies iubenda.com: reach 0.7% · 0.0% of responses set cookies googlevideo.com: reach 0.7% · 0.0% of responses set cookies rtb.mx: reach 0.7% · 99.9% of responses set cookies pmbmonetize.live: reach 0.7% · 97.8% of responses set cookies betweendigital.com: reach 0.7% · 99.5% of responses set cookies website-files.com: reach 0.7% · 0.0% of responses set cookies postrelease.com: reach 0.7% · 36.4% of responses set cookies amx1.net: reach 0.7% · 13.8% of responses set cookies omnitagjs.com: reach 0.7% · 95.1% of responses set cookies measureadv.com: reach 0.7% · 33.3% of responses set cookies addtoany.com: reach 0.7% · 0.0% of responses set cookies yellowblue.io: reach 0.7% · 9.4% of responses set cookies ggpht.com: reach 0.7% · 0.0% of responses set cookies kueezrtb.com: reach 0.6% · 56.4% of responses set cookies seedtag.com: reach 0.6% · 87.8% of responses set cookies cookie-script.com: reach 0.6% · 0.0% of responses set cookies ingage.tech: reach 0.6% · 52.6% of responses set cookies connatix.com: reach 0.6% · 12.1% of responses set cookies bunny.net: reach 0.6% · 0.0% of responses set cookies 4dex.io: reach 0.6% · 43.2% of responses set cookies adroll.com: reach 0.6% · 75.2% of responses set cookies nfcube.com: reach 0.6% · 0.0% of responses set cookies media6degrees.com: reach 0.6% · 100.0% of responses set cookies hscollectedforms.net: reach 0.6% · 100.0% of responses set cookies trustedstack.com: reach 0.6% · 40.8% of responses set cookies elfsight.com: reach 0.6% · 39.7% of responses set cookies socdm.com: reach 0.6% · 71.2% of responses set cookies tawk.to: reach 0.6% · 0.0% of responses set cookies gravatar.com: reach 0.6% · 0.0% of responses set cookies sectigo.com: reach 0.6% · 99.6% of responses set cookies googletagmanager.comgoogle-analytics.comdoubleclick.netfacebook.netyoutube.combing.comclarity.msyandex.comlinkedin.comadsrvr.orgrubiconproject.compubmatic.comtemu.com
200 domains, colored by category (legend at the top of this report). Cookie share = responses carrying Set-Cookie ÷ all responses from that domain.
Data table — the 25 widest-reaching of the 200 plotted domains
DomainCategoryReachResponses setting cookies
googleapis.com Advertising / ad-tech 57.4% 0.4%
gstatic.com Advertising / ad-tech 55.2% —
googletagmanager.com Advertising / ad-tech 51.2% —
google.com Advertising / ad-tech 40.9% 2.8%
google-analytics.com Advertising / ad-tech 39.7% —
doubleclick.net Advertising / ad-tech 29.7% 23.6%
facebook.net Social & video 18.9% 0.0%
cloudflare.com Platforms & infra 15.8% 0.9%
cloudflareinsights.com Platforms & infra 12.9% —
jsdelivr.net Platforms & infra 10.2% —
googlesyndication.com Advertising / ad-tech 8.1% —
youtube.com Advertising / ad-tech 6.7% 17.9%
googleadservices.com Advertising / ad-tech 6.2% 0.0%
cloudfront.net Advertising / ad-tech 5.6% 11.3%
ytimg.com Advertising / ad-tech 5.5% —
bing.com Advertising / ad-tech 5.4% 58.5%
adtrafficquality.google Advertising / ad-tech 5.1% —
shopify.com Platforms & infra 4.7% 0.1%
clarity.ms Advertising / ad-tech 4.6% 37.4%
fontawesome.com Platforms & infra 4.6% 0.0%
jquery.com Platforms & infra 4.5% —
shopifysvc.com Platforms & infra 4.5% —
shop.app Platforms & infra 4.4% 49.5%
amazonaws.com Advertising / ad-tech 4.1% 0.0%
bootstrapcdn.com Platforms & infra 4.1% 0.0%

All 200 plotted domains are in the CSV.

200 domains · reach out of 15,707,041 pages domain-reach-vs-cookies.csv what “sets cookies” means

Methodology

  • Source: the public HTTP Archive dataset on BigQuery (httparchive.crawl.pages / .requests) — crawls of Q3 ’25, Q4 ’25, Q1 ’26, Q2 ’26; mobile client; root pages only (15.7M in the 2026-06-01 crawl). Third-party = the request's registrable domain differs from the page's.
  • Technology detection (§1–2): HTTP Archive's Wappalyzer-based detection, aggregated per category / CrUX rank bucket.
  • Request detection (§3): every request URL tested against our open, versioned fingerprint library (66 vendors). The free Pixel & Tag Scanner uses the same rule format on a 52-vendor subset, so a scan there is a floor relative to these numbers.
  • Entities (§4, §8): our own curated, open domain→owner map (43 owners, 102 domains); multi-domain entities deduplicated per page in SQL, single-domain entities measured directly.
  • Cookies (§5): aggregated from response Set-Cookie headers; names classified by the same open database behind the Cookie Scanner. JavaScript-set cookies are not visible to this method.
  • Reproducible: HTTP Archive is a public dataset, and all ten queries are published in full — anyone can re-run them against the same tables. The rows behind every chart are downloadable as CSV. Generated 2026-08-01 (§1–3) and 2026-08-02 (§4–8).
  • Honesty notes: the top-1k bucket is small (n=748); category detection and request detection are different methods and are only compared directionally; reach ≠ tracking for infrastructure domains; the cookie census runs on a 10% block sample (its counts are ×10 estimates, while lifetime mixes are ratios and sample-safe) and sees header-set cookies only; technology pairs below 5k pages are cut from the co-occurrence extract; “·” in the market-share table means below that bucket's top-15 cut, not zero; category colors are editorial groupings.
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