What does libsyn.com track?
Before any consent, libsyn.com loaded 8 tracking companies and set 14 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 libsyn.com once and clicking nothing. How we scan
- Tracking companies
- 8
- Tracking cookies
- 14
- Third-party hosts
- 34
- Cookies in total
- 31
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 15 companies it contacted before consent were social media companies.
- Microsoft Advertising4 requestsAdvertising
bat.bing.com, bat.bing.net
- Google Ads3 requestsAdvertising
ad.doubleclick.net, www.google.de, stats.g.doubleclick.net
- LinkedIn4 requestsSocial media
snap.licdn.com, px.ads.linkedin.com
- Reddit3 requestsSocial media
www.redditstatic.com, pixel-config.reddit.com, alb.reddit.com
- Meta3 requestsSocial media
connect.facebook.net, www.facebook.com
- X (Twitter)3 requestsSocial media
static.ads-twitter.com, t.co, analytics.twitter.com
- Hotjar10 requestsAnalytics
script.hotjar.com, static.hotjar.com, vc.hotjar.io, content.hotjar.io
- Google Analytics4 requestsAnalytics
region1.analytics.google.com, www.googletagmanager.com, analytics.google.com
Other third parties (content delivery, consent, functional, unclassified)
- openai.com4 requestsUnclassified
bzrcdn.openai.com, bzr.openai.com
- gostellar.app1 requestUnclassified
api.gostellar.app
- OneTrust13 requestsConsent banner
cdn.cookielaw.org, geolocation.onetrust.com
- Google9 requestsFunctional
maps.googleapis.com, fonts.googleapis.com, www.google.com
- Trustpilot1 requestFunctional
widget.trustpilot.com
- unpkg2 requestsContent delivery
unpkg.com
- Amazon Web Services1 requestContent delivery
d3niuqph2rteir.cloudfront.net
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 |
|---|---|---|---|
| _fbp | Advertising | libsyn.com | 3 months |
| _gcl_au | Advertising | libsyn.com | 3 months |
| _gtmeec | Advertising | libsyn.com | 3 months |
| _rdt_uuid | Advertising | libsyn.com | 3 months |
| bcookie | Advertising | linkedin.com (third party) | 12 months |
| FPAU | Advertising | libsyn.com | 3 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 |
| lidc | Advertising | linkedin.com (third party) | 1 day |
| muc_ads | Advertising | t.co (third party) | 13 months |
| personalization_id | Advertising | twitter.com (third party) | 13 months |
| _ga | Analytics | libsyn.com | 13 months |
| _ga_6MD8SMG8NT | Analytics | libsyn.com | 13 months |
| __obref | Unclassified | libsyn.com | 12 months |
| _twpid | Unclassified | libsyn.com | 13 months |
| _twsid | Unclassified | libsyn.com | 13 months |
| __cf_bm | Functional | libsyn.com | Under a day |
| __cf_bm | Functional | bzrcdn.openai.com (third party) | Under a day |
| __cf_bm | Functional | load.data.libsyn.com | Under a day |
| __cf_bm | Functional | twitter.com (third party) | Under a day |
| __cf_bm | Functional | t.co (third party) | Under a day |
| __cf_bm | Functional | bzr.openai.com (third party) | Under a day |
| __cf_bm | Functional | linkedin.com (third party) | Under a day |
| _cfuvid | Functional | bzrcdn.openai.com (third party) | Session |
| _cfuvid | Functional | bzr.openai.com (third party) | Session |
| _hjSession_3522995 | Functional | libsyn.com | Under a day |
| _hjSessionUser_3522995 | Functional | libsyn.com | 12 months |
| FPGSID | Functional | libsyn.com | Under a day |
| li_gc | Functional | linkedin.com (third party) | 6 months |
| OptanonConsent | Functional | libsyn.com | 12 months |
The page also wrote 10 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.