What does oreilly.com track?
Before any consent, oreilly.com loaded 3 tracking companies and set 1 advertising or analytics cookie.
That's more tracking companies than 58% of the 2,450 sites we scanned.
Scanned October 2, 2026 from Germany, loading www.oreilly.com once and clicking nothing. How we scan
- Tracking companies
- 3
- Tracking cookies
- 1
- Third-party hosts
- 6
- Cookies in total
- 9
Consent banner
The page loaded OneTrust, a consent management platform. Everything below was recorded before anyone answered it. 3 tracking companies still loaded while it was unanswered.
Companies contacted before consent
2 of the 5 companies it contacted before consent were analytics companies.
- Bombora (IPredictive)1 requestAdvertising
ad.ipredictive.com
- VWO2 requestsAnalytics
dev.visualwebsiteoptimizer.com
- Google Analytics2 requestsAnalytics
www.googletagmanager.com
Other third parties (content delivery, consent, functional, unclassified)
- oreillystatic.com32 requestsUnclassified
cdn.oreillystatic.com
- OneTrust5 requestsConsent banner
cdn.cookielaw.org, geolocation.onetrust.com
Cookies set before consent
The longest-lived tracking cookie it set was cu, from Bombora (IPredictive), lasting about 12 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| cu | Advertising | ipredictive.com (third party) | 12 months |
| akaalb_OREILLY_STATIC_LB | Unclassified | cdn.oreillystatic.com (third party) | Session |
| akaalb_OReillyALB | Unclassified | www.oreilly.com | Session |
| _abck | Functional | oreilly.com | 12 months |
| _vwo_uuid_v2 | Functional | oreilly.com | 12 months |
| bm_lso | Necessary | www.oreilly.com | 30 days |
| bm_s | Necessary | oreilly.com | 31 days |
| bm_so | Necessary | oreilly.com | 1 day |
| bm_sz | Necessary | oreilly.com | Under a day |
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.