# Quizlet

We have not found a subprocessor list published by Quizlet. We monitor 4 of its documents, which we last checked on 2026-11-11.

Quizlet (quizlet.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/quizlet
- Documents last verified: 2026-11-11
- Transparency rating: 27/100 (how much it publishes, not how secure it is): Subprocessor list 0/30 (not found); Processing locations 0/8 (no list); Purposes 0/7 (no list); Data processing addendum 0/12 (not found); Trust center 8/8; Privacy policy 6/6; security.txt 0/6 (not found); Security page 5/5; Status page 0/5 (not found); Vulnerability disclosure 0/5 (not found); Pages still reachable 8/8
- Supply chain: relies on 0 tracked vendors directly, 0 within two hops, 0 within three; 0 tracked vendors rely on it directly, 0 within two hops, 0 within three
- Cite as: Quizlet, Third Party Index, https://thirdpartyindex.com/vendors/quizlet (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Trust center | https://quizlet.com/user/trust/sets | 2026-11-11 | 2026-10-04 |
| Privacy policy | https://quizlet.com/privacy | 2026-11-11 | 2026-10-30 |
| Terms | https://quizlet.com/tos | 2026-11-11 | 2026-09-21 |
| Security page | https://quizlet.com/security | 2026-11-11 | 2026-09-21 |

## Subprocessors (0)

No subprocessor list has been found or read for this vendor.

## Web Technologies

Quizlet's homepage made 175 requests to 32 domains, 21 services controlled by another company, and 2 domains not identified. Loaded on 2026-10-12 by a browser that accepted nothing; other visits may load more or less. What a page loads is not a list of who receives customer data.

21 third parties by category: Advertising 9 (Google Cloud, Reddit, Inc., Spotify AB, Snap Inc.; reviewed: Tapad, Inc.; usually detected as Advertising: Snap, Magnite, Inc., Teads, Xandr); Analytics 5 (TikTok, Meta, TikTok; reviewed: Comscore; usually detected as Analytics: AppsFlyer); Security 2 (HUMAN Security; usually detected as Security: Amazon Web Services); Cookie compliance 1 (Ketch); CDN 1 (Cloudflare); CMS 1 (Prismic); Retargeting 1 (RTB House); Unclassified 1 (Brand Metrics Sweden AB). Each company that appears controlled by another organization is counted once, under the main category of the technologies detected from it on this homepage or, when none was, the category recorded from the company's own page (marked reviewed) or else the one it is usually detected as on other published homepages (marked as such); unclassified: none of these.

### Third parties (21)

- Google Cloud: 39 requests to googletagmanager.com, google.com, doubleclick.net, google-analytics.com; DoubleClick Floodlight, Google Analytics, Google Sign-in, Google Tag Manager
- Prismic: 14 requests to prismic.io; Prismic
- RTB House: 8 requests to creativecdn.com; RTB House
- HUMAN Security: 7 requests to px-cloud.net; PerimeterX
- Ketch: 7 requests to ketchcdn.com, ketchjs.com; Ketch
- Snap: 7 requests to snapchat.com
- TikTok: 6 requests to tiktok.com; TikTok Pixel
- AppsFlyer: 5 requests to appsflyersdk.com, onelink.me
- Comscore: 3 requests to scorecardresearch.com
- Meta: 3 requests to facebook.net, facebook.com; Facebook Pixel 2.9.419
- Reddit, Inc.: 3 requests to reddit.com, redditstatic.com; Reddit Ads
- Spotify AB: 3 requests to spotify.com, byspotify.com; Spotify Pixel
- Brand Metrics Sweden AB: 2 requests to brandmetrics.com
- Snap Inc.: 2 requests to sc-static.net; Snap Pixel
- Tapad, Inc.: 2 requests to tapad.com
- Amazon Web Services: 1 request to on.aws
- Cloudflare: 1 request to cloudflare.com; Rollbar 2.26.1, cdnjs
- Magnite, Inc.: 1 request to rubiconproject.com
- Teads: 1 request to teads.tv
- TikTok: 1 request to tiktokw.us; TikTok Pixel
- Xandr: 1 request to adnxs.com

### Unknown (2)

Domains not identified yet: cdn-apple.com, udmserve.net

### First party (1)

- Quizlet: 56 requests to quizlet.com; AppNexus, Appsflyer, Cloudflare, Google Cloud, Google Cloud CDN, Lodash 4.18.1, Next.js 16.3.8, Open Graph, PWA, React, Rubicon Project, Webpack, comScore, core-js 3.32.2

9 tracked companies loaded by the homepage are not in Quizlet's subprocessor list. A website can use a service without it processing customer data.

## Subprocessor of (0)

No tracked vendor lists it.

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Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api