Meta on 276 sites, and what else was on the page

It arrives with Google 92% of the time

Google was present on 254 of Meta's 276 sites. After that the list falls away quickly: LinkedIn on 71 sites (25.7%), Cloudflare on 40 (14.5%), Amazon CloudFront on 37 (13.4%), jsDelivr on 35 (12.7%), Microsoft Clarity on 28 (10.1%), Microsoft Ads on 27 (9.8%), OneTrust on 26 (9.4%), TikTok Pixel on 24 (8.7%) and Microsoft on 23 (8.3%).

Read as a group, that is a marketing department's shopping list rather than a technical stack: two or three ad platforms so campaigns can be attributed, a professional network for B2B retargeting, a content delivery network, a session analytics product, a consent tool. Meta is rarely the reason a page is instrumented. It is one line item on a page that was already instrumented.

87.3% early contact — low, for this index

On 241 of the 276 sites, at least one company was contacted before a consent banner could have been answered. That share ranks 79th of the 88 companies here, where rank 1 is the highest share, so only nine of the 88 sit lower.

The measurement is per site and it counts, not names: it records how many companies arrived inside the window, never which ones. So the supportable statement is that Meta was present on 241 sites where early contact happened, alongside a median of 6 companies that arrived in that window. On a page reaching 9 companies in total, that is a wide field, and picking a name out of it would be a guess.

The median page, and the one company that comes after

The median site carrying Meta contacted 9 companies over 49 requests, 3 of them classified as tracking against the vendor catalogue. Median time to first third-party contact was 793 ms, which ranks 22nd of 88 — the slower end. The fastest first contact recorded in the group was 55 ms.

The median number of companies that appeared after the consent window closed is 1. So the typical shape here is a page that reaches five companies before anyone could have answered anything, and adds one more afterwards.

77 of 276 had a banner at all

Consent software was detected on 77 sites, a little over a quarter. OneTrust was seen alongside on 37 of them, the IAB TCF framework on 31, Cookiebot on 4, and Osano, CookieYes and Klaro on 1 each. These are sightings, not slices: a site can carry more than one banner.

The other 199 sites presented nothing to answer. That is the ordinary condition of a Meta-carrying page in this corpus, and it is why the early-contact figure needs reading carefully rather than loudly — on most of these sites there was no consent moment to be early to.

Twelve sites, named

harvard.edu contacted 5 companies, all 5 inside the window, first contact at 272 ms, no banner detected. scribd.com: 12 and 12, behind an Osano banner. hotjar.com: 18 and 18, behind OneTrust. media.net: 8 and 8, behind an IAB TCF banner. zillow.com: 10 with 9 inside the window.

Then the ones that waited. dell.com contacted 15 companies with 4 inside the window, first contact at 1,352 ms behind OneTrust. t-mobile.com: 26 with 6, at 951 ms. kaspersky.com: 22 with 3, at 1,460 ms. oxylabs.io: 12 with 2, at 857 ms behind a Cookiebot banner. shopee.co.id: 4 with 3. vungle.com reached 14 companies and none of them inside the window, first contact at 2,116 ms.

Meta's own site is in the sample. meta.com contacted 2 companies, both inside the window, first contact at 1,473 ms, with no consent banner detected.

What this page can and cannot tell you

It can tell you how often Meta code turns up on other people's sites in this sample, how heavy those sites are, and which other companies keep it company. It cannot tell you what was sent, because request payloads were never inspected, and it cannot tell you whether any particular visit was linked to an account.

If you want the same reading for a page you actually care about — your employer's site, your own checkout — MurmStack runs the equivalent check on whatever is open in the browser and lists the companies contacted, in order, with the pre-consent window marked.

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 254 of these sites
• LinkedInTogether on 71 of these sites
• CloudflareTogether on 40 of these sites
• Amazon CloudFrontTogether on 37 of these sites
• jsDelivrTogether on 35 of these sites
• Microsoft ClarityTogether on 28 of these sites
• Microsoft AdsTogether on 27 of these sites
• OneTrustTogether on 26 of these sites