phys.org

1.

Google Tag

89.79% • Google • Advertising

2.

Quantcast

89.57% • Quantcast International Limited • Advertising

3.

Google Syndication

86.8% • Google • Advertising

4.

Google Static

82.5% • Google • Hosting

5.

Google Fonts

81.88% • Google • Hosting

6.

Facebook

64.28% • Meta • Advertising

7.

InfoLinks

17.75% • Infolinks • Advertising

8.

GitHub

9.93% • GitHub, Inc. • Customer Interaction

9.

Google Marketing Platform

5.79% • Google • Advertising

10.

Google APIs

5.23% • Google • Hosting

11.

Google

5.2% • Google • Advertising

12.

YouTube

3.37% • Google • Audio/Video Player

13.

Google Play Services

3.03% • Google • Hosting

14.

Google Photos

2.9% • Google • Hosting

15.

Amazon Advertising

2.31% • Amazon • Advertising

16.

jsDelivr

2.23% • • Hosting

17.

Google Analytics with signals

2.03% • Google • Advertising

18.

PageFair

1.85% • Blockthrough • Customer Interaction

19.

ID5 Sync

1.64% • ID5 Technology • Advertising

20.

Criteo

1.55% • Criteo • Advertising

21.

Quantcount

1.52% • Quantcast International Limited • Site Analytics

22.

AppNexus

1.41% • Microsoft • Advertising

23.

Index Exchange

1.4% • Index Exchange, Inc. • Advertising

24.

PubMatic

1.4% • PubMatic, Inc. • Advertising

25.

Magnite

1.4% • Magnite • Advertising

26.

OneTag

1.38% • OneTag • Advertising

27.

TripleLift

1.38% • TripleLift, Inc. • Advertising

28.

OpenX

1.38% • OpenX Software Ltd. • Advertising

29.

33Across

1.37% • 33Across • Advertising

30.

Sonobi

1.37% • Sonobi, Inc • Advertising

31.

Google Translate

1.37% • Google • Customer Interaction

32.

SMART AdServer

1.37% • Smart Adserver • Advertising

33.

gumgum

1.32% • GumGum • Advertising

34.

Google AdServices

1.27% • Google • Advertising

35.

Lotame

1.09% • Lotame • Advertising

36.

ad-delivery.net

1.06% • • Misc