Website Tracking Technologies
The technologies our scanner detects and that appear in website tracking litigation: what each one transmits, when, and its litigation context. Also see tracked cases and the methodology.
Elfsight
Elfsight provides embeddable website widgets — review carousels, social feeds, chat buttons, forms, and pop-ups — delivered from Elfsight's servers into the host page.
Global Privacy Control (GPC)
Global Privacy Control (GPC) is a browser- and device-level privacy preference signal, not a tracking technology in the usual sense. Rather than collecting data, it communicates a visitor's opt-out preference to the webs…
Google Analytics
Google Analytics (currently GA4) is the most widely deployed website analytics platform, used to measure traffic, engagement, conversions, and audience characteristics.
Hotjar
Hotjar is a behavior analytics suite offering session recordings, heatmaps, surveys, and feedback widgets, widely used by marketing and UX teams.
Live Chat Widgets (category)
Live chat widgets (Intercom, Drift, Tidio, LiveChat, tawk.to, and many others) embed a third-party conversation interface into a website, often with visitor tracking and 'typing preview' features.
Mailchimp
Mailchimp is an email marketing and automation platform; websites commonly embed its signup forms, pop-ups, and site tracking script to connect visitor behavior to email campaigns.
Meta Pixel
The Meta Pixel is a JavaScript snippet provided by Meta Platforms that website operators install to measure advertising performance, build retargeting audiences, and optimize ad delivery across Facebook and Instagram.
Microsoft Clarity
Microsoft Clarity is a free behavioral analytics tool that records how visitors use a website, producing session replays, heatmaps, and interaction analytics.
Session Replay (category)
Session replay is a category of tools (Microsoft Clarity, Hotjar, FullStory, Mouseflow, Lucky Orange, and others) that record a visitor's on-site behavior — mouse movement, clicks, scrolling, and DOM changes — and recons…
TikTok Pixel
The TikTok Pixel is TikTok's advertising measurement script, installed by websites to track conversions from TikTok ads and build retargeting audiences.
Zocdoc
Zocdoc is a healthcare appointment marketplace; medical practices commonly embed Zocdoc booking buttons and widgets on their websites so patients can schedule directly.
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