What does xfinity.com track?
Before any consent, xfinity.com loaded 8 tracking companies and set 16 advertising or analytics cookies.
That's more tracking companies than 89% of the 2,450 sites we scanned.
Scanned October 2, 2026 from Germany, loading www.xfinity.com/national once and clicking nothing. How we scan
- Tracking companies
- 8
- Tracking cookies
- 16
- Third-party hosts
- 23
- Cookies in total
- 47
Consent banner
The page loaded OneTrust, a consent management platform. Everything below was recorded before anyone answered it. 8 tracking companies still loaded while it was unanswered.
Companies contacted before consent
4 of the 14 companies it contacted before consent were advertising companies.
- Amazon Advertising5 requestsAdvertising
c.amazon-adsystem.com, aax-eu.amazon-adsystem.com
- Google Ads2 requestsAdvertising
ad.doubleclick.net
- LiveRamp1 requestAdvertising
live.rezync.com
- TransUnion (Aggregate Knowledge)1 requestAdvertising
fid.agkn.com
- X (Twitter)5 requestsSocial media
t.co, analytics.twitter.com, static.ads-twitter.com
- Adobe29 requestsAnalytics
assets.adobedtm.com, adobedc.demdex.net
- Quantum Metric8 requestsAnalytics
ingest.quantummetric.com, cdn.quantummetric.com
- Google Analytics1 requestAnalytics
www.googletagmanager.com
Other third parties (content delivery, consent, functional, unclassified)
- comcast.com108 requestsUnclassified
assets.comcast.com, cdn.comcast.com, collector.pabs.comcast.com
- cimcontent.net38 requestsUnclassified
static.cimcontent.net
- mczbf.com3 requestsUnclassified
www.mczbf.com
- pulseinsights.com2 requestsUnclassified
js.pulseinsights.com, survey.pulseinsights.com
- OneTrust13 requestsConsent banner
cdn.cookielaw.org, geolocation.onetrust.com
- Google1 requestFunctional
www.google.com
Cookies set before consent
The longest-lived tracking cookie it set was guest_id, from X (Twitter), lasting about 13 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| _gcl_au | Advertising | xfinity.com | 3 months |
| ad-id | Advertising | amazon-adsystem.com (third party) | 9 months |
| AMCV_DA11332E5321D0550A490D45%40AdobeOrg | Advertising | xfinity.com | 13 months |
| demdex | Advertising | demdex.net (third party) | 6 months |
| guest_id | Advertising | twitter.com (third party) | 13 months |
| guest_id_ads | Advertising | twitter.com (third party) | 13 months |
| guest_id_marketing | Advertising | twitter.com (third party) | 13 months |
| mbox | Advertising | xfinity.com | 13 months |
| muc_ads | Advertising | t.co (third party) | 13 months |
| personalization_id | Advertising | twitter.com (third party) | 13 months |
| sd-session-id | Advertising | live.rezync.com (third party) | 6 months |
| zync-uuid | Advertising | rezync.com (third party) | 6 months |
| _sp_id.56b8 | Analytics | www.xfinity.com | 13 months |
| _sp_ses.56b8 | Analytics | www.xfinity.com | Under a day |
| mboxEdgeCluster | Analytics | xfinity.com | Under a day |
| s_tslv | Analytics | www.xfinity.com | 13 months |
| _twpid | Unclassified | xfinity.com | 13 months |
| _twsid | Unclassified | xfinity.com | 13 months |
| ADRUM_BT1 | Unclassified | xfinity.com | Under a day |
| ADRUM_BTa | Unclassified | xfinity.com | Under a day |
| Affiliate | Unclassified | xfinity.com | Session |
| az_east | Unclassified | xfinity.com | Under a day |
| buy-prd_ch | Unclassified | www.xfinity.com | Session |
| Channel | Unclassified | xfinity.com | Session |
| cjConsent | Unclassified | xfinity.com | 13 months |
| gpv_Page | Unclassified | www.xfinity.com | Under a day |
| inqSession_10006690 | Unclassified | xchat.xfinity.com | 12 months |
| inqState_10006690 | Unclassified | xchat.xfinity.com | 12 months |
| inqVital_10006690 | Unclassified | xchat.xfinity.com | 12 months |
| kndctr_DA11332E5321D0550A490D45_AdobeOrg_cluster | Unclassified | xfinity.com | Under a day |
| kndctr_DA11332E5321D0550A490D45_AdobeOrg… | Unclassified | xfinity.com | 13 months |
| lzlang | Unclassified | xfinity.com | 12 months |
| PSC | Unclassified | xfinity.com | 12 months |
| QuantumMetricSessionID | Unclassified | xfinity.com | Under a day |
| QuantumMetricUserID | Unclassified | xfinity.com | 12 months |
| s_inv | Unclassified | www.xfinity.com | Session |
| SameSite | Unclassified | xfinity.com | Under a day |
| SC | Unclassified | xfinity.com | 1 day |
| xpgn | Unclassified | xfinity.com | 30 days |
| __cf_bm | Functional | twitter.com (third party) | Under a day |
| __cf_bm | Functional | t.co (third party) | Under a day |
| _abck | Functional | xfinity.com | 12 months |
| ak_bmsc | Functional | xfinity.com | Under a day |
| bm_sv | Functional | xfinity.com | Under a day |
| OptanonConsent | Functional | xfinity.com | 12 months |
| TS01630e46 | Functional | www.xfinity.com | Session |
| bm_sz | Necessary | xfinity.com | Under a day |
The page also wrote 23 keys to local storage, which works like a cookie but isn't sent with requests.
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.