What does cancer.gov track?
Before any consent, cancer.gov loaded 4 tracking companies and set 9 advertising or analytics cookies.
That's more tracking companies than 70% of the 2,450 sites we scanned.
Scanned October 2, 2026 from Germany, loading www.cancer.gov once and clicking nothing. How we scan
- Tracking companies
- 4
- Tracking cookies
- 9
- Third-party hosts
- 7
- Cookies in total
- 10
Consent banner
No known consent management platform was detected on the page.
Companies contacted before consent
4 of the 5 companies it contacted before consent were analytics companies.
- Adobe5 requestsAnalytics
assets.adobedtm.com
- Crazy Egg4 requestsAnalytics
script.crazyegg.com
- Digital Analytics Program (DAP)2 requestsAnalytics
dap.digitalgov.gov
- Google Analytics2 requestsAnalytics
www.googletagmanager.com, region1.google-analytics.com
Other third parties (content delivery, consent, functional, unclassified)
- Google4 requestsFunctional
fonts.gstatic.com, fonts.googleapis.com
Cookies set before consent
The longest-lived tracking cookie it set was _ga, from Google Analytics, lasting about 13 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| _ce.s | Analytics | cancer.gov | 12 months |
| _ga | Analytics | cancer.gov | 13 months |
| _ga_CSLL4ZEK4L | Analytics | cancer.gov | 13 months |
| gpv_pn | Analytics | cancer.gov | Under a day |
| s_cc | Analytics | cancer.gov | Session |
| s_fid | Analytics | cancer.gov | 13 months |
| s_ppv | Analytics | cancer.gov | Session |
| s_tp | Analytics | cancer.gov | Session |
| s_vi | Analytics | cancer.gov | 13 months |
| engagementTracking | Unclassified | www.cancer.gov | Session |
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.