Tracker registry

Who's tracking you online

A plain-language guide to the third-party trackers embedded across the web — who owns them and what they actually collect. Look up any one, then scan a site (or your family's devices) to see which are watching you.

Session replay

FullStory — FullStoryHotjar — HotjarMicrosoft Clarity — Microsoft

Data broker

Adobe Audience Manager — AdobeOracle BlueKai — Oracle

Advertising / ad-targeting

Amazon Advertising — AmazonTikTok (static) — ByteDanceTikTok Pixel — ByteDanceCriteo — CriteoGoogle AdSense — GoogleGoogle Ads — GoogleGoogle DoubleClick — GoogleMeta Pixel — MetaMicrosoft Bing Ads — MicrosoftLinkedIn Insight Tag — Microsoft (LinkedIn)Outbrain — OutbrainPinterest Tag — PinterestSnap (static) — SnapSnap Pixel — SnapTaboola — TaboolaX Ads (Twitter Pixel) — X (Twitter)

Social

Instagram — MetaMeta (Facebook CDN) — MetaMeta (Facebook) — MetaX (t.co) — X (Twitter)

Analytics

Adobe Analytics — AdobeComscore — ComscoreGoogle — GoogleGoogle (gstatic) — GoogleGoogle Analytics — GoogleGoogle Tag Manager — GoogleMixpanel — MixpanelSegment — Twilio

Scan your site free

See which of these are embedded on any website in seconds.

Run a privacy scan