Your Privacy, Our Mission

Donate

Support Ghostery with a one-time donation. Your contributions help us develop even stronger protection against trackers and ads, making the web safer for everyone.

One-time or whenever you appreciate Ghostery.

Back to all trackers

Polyfill

Owned by Polyfill.io

https://polyfill.io/

Tracker Rank

538 / 844
Relatively prevalent

Operates Under

polyfill.io
Suggest a change

Tracker Reach

0.05% of web traffic is tracked
by Polyfill
44 of top 10,000 sites seen loading
Polyfill tracker

Seen on these types of websites

52%
Uncategorized
14%
Business
11%
News and Portals
7%
Reference
7%
Entertainment
Data from May 2017 to Feb 2025.

Tracker Category

Misc

Different types of unclassified trackers.

Learn about our tracker categories What is a tracker?

Similar Trackers

1.
Microsoft Services
2.07% • Microsoft • Misc
2.
ad-delivery.net
2.0% • • Misc
3.
Amazon.com
0.59% • Amazon • Misc
4.
perfdrive.com
0.5% • • Misc

Presence on Top Sites

nitori-net.jp
Uncategorized • 8 trackers seen
millenium.org
Entertainment • 12 trackers seen
fortepan.hu
Uncategorized • 1 trackers seen
avendrealouer.fr
Reference • 5 trackers seen
eonline.com
Entertainment • 15 trackers seen
tiscali.it
News and Portals • 12 trackers seen
goo.ne.jp
News and Portals • 7 trackers seen
rt.com
News and Portals • 12 trackers seen
cbs.com
Entertainment • 8 trackers seen
tv-asahi.co.jp
Uncategorized • 16 trackers seen
selency.fr
Uncategorized • 9 trackers seen
turf-fr.com
Uncategorized • 11 trackers seen
lg.com
Business • 9 trackers seen
mi.com
Business • 4 trackers seen
alaskaair.com
Recreation • 11 trackers seen
colorado.edu
Reference • 4 trackers seen
sharenet.co.za
Uncategorized • 7 trackers seen
bouyguestelecom.fr
Business • 6 trackers seen
ipsosinteractive.com
Business • 2 trackers seen
8muses.com
Adult • 4 trackers seen
goo-net.com
E-Commerce • 9 trackers seen
square-enix.com
Business • 3 trackers seen
morningstar.com
Business • 8 trackers seen
berliner-zeitung.de
News and Portals • 12 trackers seen
belgium.be
Government • 3 trackers seen