What does leetcode.com track?
Before any consent, leetcode.com loaded 2 tracking companies and set 5 advertising or analytics cookies.
That's fewer tracking companies than most sites we scanned: 56% of the 2,450 sites we checked loaded more.
Scanned October 2, 2026 from Germany, loading leetcode.com once and clicking nothing. How we scan
- Tracking companies
- 2
- Tracking cookies
- 5
- Third-party hosts
- 12
- Cookies in total
- 11
Consent banner
No known consent management platform was detected on the page.
Companies contacted before consent
2 of the 6 companies it contacted before consent were unclassified.
- Google Ads3 requestsAdvertising
stats.g.doubleclick.net, www.google.de
- Google Analytics5 requestsAnalytics
region1.analytics.google.com, www.google-analytics.com, www.googletagmanager.com
Other third parties (content delivery, consent, functional, unclassified)
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 |
|---|---|---|---|
| _dd_s | Analytics | leetcode.com | Under a day |
| _ga | Analytics | leetcode.com | 13 months |
| _ga_CDRWKZTDEX | Analytics | leetcode.com | 13 months |
| _gat | Analytics | leetcode.com | Under a day |
| _gid | Analytics | leetcode.com | 1 day |
| 87b5a3c3f1a55520_gr_session_id | Unclassified | leetcode.com | Under a day |
| 87b5a3c3f1a55520_gr_session_id_sent_vst | Unclassified | leetcode.com | Under a day |
| gr_user_id | Unclassified | leetcode.com | 13 months |
| ip_check | Unclassified | leetcode.com | 1 day |
| uuuserid | Unclassified | leetcode.com | 12 months |
| csrftoken | Necessary | leetcode.com | 12 months |
The page also wrote 4 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.