Trusted

Owned and operated by Ghostery since 2018. We've empowered 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 content-filtering community. Other projects can use our tracker database to enhance their own privacy tools.

Discerning

More than just a website — WhoTracks.me analyzes data from the top 10,000 websites worldwide and informs Ghostery’s Anti-Tracking technology.

OneTag

https://www.onetag.com/

162 /870

Relatively prevalent

TRACKER REACH

0.4%

of web traffic is tracked by OneTag

140

of the top 10,000 sites seen loading the OneTag tracker

Data from February 2021 to November 2023.

SEEN ON THESE TYPES OF WEBSITES

50%

Uncategorized

19%

News and Portals

14%

Entertainment

6%

Business

5%

Reference

TRACKING TYPE

No tracking detected at present

TRACKER CATEGORY

Advertising

Provides advertising or advertising-related services such as data collection, behavioral analysis or retargeting.

Learn about our tracker categories

What is a tracker?

SIMILAR TRACKERS

Google Google
DoubleClick Google
Facebook Meta
Amazon Advertising Amazon