What does booking.com track?
Before any consent, booking.com loaded 1 tracking company and set 0 advertising or analytics cookies.
That's fewer tracking companies than most sites we scanned: 75% of the 2,450 sites we checked loaded more.
Scanned October 2, 2026 from Germany, loading www.booking.com/index.en-gb.html?aid=304142&label=gen173bo-10CAEoggI46AdIM1gDaDuIAQGYATO4ARfIAQzYAQPoAQH4AQGIAgGYAgKoAgG4Avn2_dUGwAIB0gIkYzA2ZTJkYjAtMTA2YS00MGE1LThlOTItZjc4NmNjZjk0MjI52AIB4AIB once and clicking nothing. How we scan
- Tracking companies
- 1
- Tracking cookies
- 0
- Third-party hosts
- 8
- Cookies in total
- 9
Consent banner
The page loaded OneTrust, a consent management platform. Everything below was recorded before anyone answered it. 1 tracking company still loaded while it was unanswered.
Companies contacted before consent
1 of the 4 companies it contacted before consent were advertising companies.
- Google Ads6 requestsAdvertising
pagead2.googlesyndication.com, ep1.adtrafficquality.google, c4a98f7584df42ca92e974a13364f350.safeframe.googlesyndication.com
Other third parties (content delivery, consent, functional, unclassified)
Cookies set before consent
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| bk_nav_search | Unclassified | booking.com | Under a day |
| bkng | Unclassified | booking.com | 13 months |
| bkng_ap_sso_session | Unclassified | account.booking.com | 13 months |
| bkng_sso_auth | Unclassified | booking.com | 13 months |
| bkng_sso_ses | Unclassified | booking.com | 13 months |
| bkng_sso_session | Unclassified | booking.com | 13 months |
| pcm_consent | Unclassified | booking.com | 12 months |
| OptanonConsent | Functional | www.booking.com | 12 months |
| aws-waf-token | Necessary | booking.com | 4 days |
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.