Trusted

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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.

Polyfill

https://polyfill.io/

74 /848

Commonly prevalent

TRACKER REACH

1.1%

of web traffic is tracked by Polyfill

517

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

Data from May 2017 to March 2024.

SEEN ON THESE TYPES OF WEBSITES

40%

Uncategorized

18%

Business

11%

News and Portals

10%

Entertainment

7%

Reference

TRACKING TYPE

No tracking detected at present

TRACKER CATEGORY

Misc

This tracker does not fit in other categories or has not yet been labelled.

Learn about our tracker categories

What is a tracker?

SIMILAR TRACKERS

Presence on top sites