phys.org

1.

Google Static

76.22% • Google • Hosting

2.

Google

75.01% • Google • Advertising

3.

Google Tag

72.49% • Google • Advertising

4.

Quantcast

70.03% • Quantcast • Advertising

5.

Google Marketing Platform

68.72% • Google • Advertising

6.

Google Fonts

68.17% • Google • Hosting

7.

Facebook

53.18% • Meta • Advertising

8.

InfoLinks

50.03% • Infolinks • Advertising

9.

Google Syndication

19.0% • Google • Advertising

10.

Cloudflare

17.07% • Cloudflare • Hosting

11.

Google APIs

4.97% • Google • Hosting

12.

GitHub

3.83% • GitHub, Inc. • Customer Interaction

13.

YouTube

2.51% • Google • Audio/Video Player

14.

Google Analytics with signals

2.39% • Google • Advertising

15.

Quantcount

1.91% • Quantcast • Site Analytics

16.

Google Photos

1.71% • Google • Hosting

17.

AppNexus

1.47% • Microsoft • Advertising

18.

Google Translate

1.43% • Google • Customer Interaction

19.

Nativo

1.39% • Nativo • Advertising

20.

LiveRamp

1.37% • LiveRamp • Advertising

21.

OpenX

1.33% • OpenX Software Ltd. • Advertising

22.

Google User Content

1.29% • Google • Hosting

23.

sovrn

1.17% • Sovrn Holdings Inc • Advertising

24.

Bidswitch

1.11% • Criteo • Advertising

25.

Smart AdServer

1.11% • Equativ • Advertising

26.

PubMatic

1.1% • PubMatic, Inc. • Advertising

27.

Magnite

1.09% • Magnite • Advertising

28.

OneTag

1.08% • OneTag • Advertising

29.

Rhythmone Beacon

1.03% • RhythmOne, LLC • Advertising

30.

Criteo

1.02% • Criteo • Advertising

31.

Index Exchange

1.01% • Index Exchange, Inc. • Advertising

32.

Yahoo! Analytics

1.01% • Verizon • Site Analytics