What does bitly.com track?
Before any consent, bitly.com loaded 4 tracking companies and set 6 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 bitly.com once and clicking nothing. How we scan
- Tracking companies
- 4
- Tracking cookies
- 6
- Third-party hosts
- 17
- Cookies in total
- 11
Consent banner
The page loaded OneTrust, a consent management platform. Everything below was recorded before anyone answered it. 4 tracking companies still loaded while it was unanswered.
Companies contacted before consent
2 of the 9 companies it contacted before consent were advertising companies.
- Microsoft Advertising7 requestsAdvertising
bat.bing.com, bat.bing.net
- Google Ads5 requestsAdvertising
pagead2.googlesyndication.com, ade.googlesyndication.com
- Google Analytics8 requestsAnalytics
www.googletagmanager.com, region1.google-analytics.com
- Optimizely5 requestsAnalytics
logx.optimizely.com, cdn.optimizely.com, cdn3.optimizely.com, a16488430484.cdn.optimizely.com
Other third parties (content delivery, consent, functional, unclassified)
- qr-code-generator.com17 requestsUnclassified
global-free-tools.qr-code-generator.com
- OneTrust12 requestsConsent banner
cdn.cookielaw.org, geolocation.onetrust.com
- UserWay8 requestsFunctional
cdn.userway.org, api.userway.org
- Google2 requestsFunctional
accounts.google.com
- jsDelivr1 requestContent delivery
cdn.jsdelivr.net
Cookies set before consent
The longest-lived tracking cookie it set was _sp_id.741f, lasting about 13 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| optimizelyEndUserId | Advertising | bitly.com | 6 months |
| _oeu1790938270717r0.6616138502986987$… | Analytics | a16488430484.cdn.optimizely.com (third party) | 6 months |
| _sp_id.741f | Analytics | bitly.com | 13 months |
| _sp_ses.741f | Analytics | bitly.com | Under a day |
| optimizelySession | Analytics | bitly.com | 6 months |
| sp | Analytics | bitly.com | 12 months |
| _xsrf | Unclassified | bitly.com | 30 days |
| anon_u | Unclassified | bitly.com | 6 months |
| g_state | Functional | bitly.com | 6 months |
| OptanonConsent | Functional | bitly.com | 13 months |
| wp-wpml_current_language | Functional | bitly.com | Session |
The page also wrote 15 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.