What does speedtest.net track?
Before any consent, speedtest.net loaded 5 tracking companies and set 1 advertising or analytics cookie.
That's more tracking companies than 78% of the 2,450 sites we scanned.
Scanned October 2, 2026 from Germany, loading www.speedtest.net once and clicking nothing. How we scan
- Tracking companies
- 5
- Tracking cookies
- 1
- Third-party hosts
- 15
- Cookies in total
- 5
Consent banner
The page loaded OneTrust, a consent management platform. Everything below was recorded before anyone answered it. 5 tracking companies still loaded while it was unanswered.
Companies contacted before consent
4 of the 11 companies it contacted before consent were advertising companies.
- Google Ads3 requestsAdvertising
securepubads.g.doubleclick.net
- Amazon Advertising3 requestsAdvertising
config.aps.amazon-adsystem.com, client.aps.amazon-adsystem.com, c.amazon-adsystem.com
- ID52 requestsAdvertising
cdn.id5-sync.com, api.id5-sync.com
- Lotame1 requestAdvertising
tags.crwdcntrl.net
- Google Analytics3 requestsAnalytics
www.googletagmanager.com
Other third parties (content delivery, consent, functional, unclassified)
- cdnst.net13 requestsUnclassified
r.cdnst.net
- hadronid.net1 requestUnclassified
cdn.hadronid.net
- idsequoia.ai1 requestUnclassified
api.idsequoia.ai
- OneTrust7 requestsConsent banner
cdn.cookielaw.org, geolocation.onetrust.com
- Google1 requestFunctional
firebaseinstallations.googleapis.com
- Ziff Davis9 requestsContent delivery
cdn.ziffstatic.com
Cookies set before consent
The longest-lived tracking cookie it set was opt_out, lasting about 13 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| opt_out | Advertising | speedtest.net | 13 months |
| geoCC | Unclassified | www.speedtest.net | Session |
| geoRC | Unclassified | www.speedtest.net | Session |
| zd_core_lialready | Unclassified | speedtest.net | 15 days |
| OptanonConsent | Functional | speedtest.net | 12 months |
Understanding this page
- How to see which cookies and trackers a website loads
A hands-on walkthrough for checking what a site sets before you've clicked anything, using Chrome and Firefox's built-in tools, plus how CookieTosser automates the same check every month.
- What counts as valid cookie consent in the EU
The rules that actually govern cookie banners — the ePrivacy Directive, the GDPR consent standard, the Planet49 ruling, the strictly-necessary exemption, and what "reject" has to offer compared with "accept.
- Consent management platforms explained
What a CMP banner is actually doing behind the scenes, how the IAB's TCF standard and Google's Consent Mode v2 fit in, and why a banner being present is no guarantee that nothing loads before you answer it.