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Ghostery Whotracks.Me
Uncover who is tracking you online with WhoTracks.Me, featuring statistical reports derived from the web’s largest open-source database of trackers.
Learn moreTrusted
Owned and operated by Ghostery since 2018. We’ve empowered researchers and millions of users to take control of their online experience and protect their personal information from data collectors.
Dynamic
Actively monitors the data collectors on the top 10,000 most visited websites worldwide. Whotracks.Me shows type, reach, and affiliation of every tracker.
Open Source
Shared with the wider research and content-filtering community. Other projects can use WhoTracks.Me and associated tracker database to enhance their own privacy tools.
Discerning
More than just a website – WhoTracks.Me’s expansive dataset and in-depth analysis powers Ghostery’s AI Anti-Tracking technology.
Tracker categories
By categorizing trackers, Ghostery helps users understand the tracking ecosystem and make informed choices about what to block. Tracker categories exist to provide transparency into the different types of trackers and data collection happening behind the scenes on websites.
- Advertising Advertising services that utilize data collection, behavioral analysis, and user retargeting.
- Site Analytics Data analytics, site usage, and performance trackers.
- Consent Management Cookie consent managers, allowing websites different levels of tracking user activity.
- Essential Site requests that may be critical to website functionality, such as tag managers and privacy notices.
- Hosting Services providing access to websites have access to server logs, including IP address and User Agent information.
- Customer Interaction Chat widgets, customer support, and other interaction tools.
- Audio/Video Player Most audio and video players on websites.
- Extensions Software that intercepts and analyzes browser requests by redirecting traffic to itself. This includes browser hijacking extensions, but also legitimate applications like anti-virus software.
- Misc Different types of unclassified trackers.
- Adult Advertising Advertising services designed for adult content sites.
- Social Media Features related to social media platforms.
- Telemetry Gathers information about user interaction, error reports, and performance. The data is used to improve products.
Did you know?
Trackers are pervasive on the web. Here are a few key facts to know about web tracking.
74%
Google trackers are present on 74% of all web traffic
16%
of the web has a hidden Facebook tracking pixel
43.2%
Proportion of traffic to top 10,000 sites containing trackers
33.6%
of trackers are using cookies
12
Average number of requests per page that track you
7
Average number of
present on a site2260
out of 10,000 top websites have more than 10 trackers per page
19MB
is the average amount of data used by trackers per page load
Proportion of Web traffic tracked by different organizations
Tracker Market share
Many popular services belong to Google, Amazon, Facebook Meta, Apple and Microsoft but these services often have different names (e.g. Meta owns Facebook, Instagram and WhatsApp). Explore the current structure of the data collection market by viewing the full chart.
Popular Websites with the most tracking
This chart ranks websites based on the quantity of online trackers on their sites. Trackers record what you do online, which websites you visit, what you buy, and even what you click on. Data collectors then use this information to create a profile about you, which can be used for things like targeted advertising.
The most common trackers
Discover the most common trackers on the web, determined by the total number of places where each tracker is visible.
Learn more on our blog
Discover the latest trends, insights, and best practices in online privacy and security.