britannica.com

1.

Google Tag Manager

87.62% • Google • Essential

2.

Cloudflare Insights

83.96% • Cloudflare • Site Analytics

3.

Google Static

82.62% • Google • Hosting

4.

Google Fonts

77.15% • Google • Hosting

5.

Adobe Experience Cloud

75.71% • Adobe • Site Analytics

6.

Microsoft Services

66.24% • Microsoft • Misc

7.

Google Analytics

44.81% • Google • Site Analytics

8.

Facebook

35.7% • Meta • Advertising

9.

Microsoft Clarity

35.5% • Microsoft • Site Analytics

10.

X Advertising

33.68% • X Corp. • Advertising

11.

DoubleClick

28.8% • Google • Advertising

12.

Google

21.68% • Google • Advertising

13.

Google Analytics with signals

20.31% • Google • Advertising

14.

Amazon CloudFront

7.37% • Amazon • Hosting

15.

Google User Content

5.99% • Google • Hosting

16.

JW Player

5.59% • JW Player • Audio/Video Player

17.

Google APIs

4.52% • Google • Hosting

18.

Amazon Advertising

3.6% • Amazon • Advertising

19.

YouTube

3.53% • Google • Audio/Video Player

20.

Microsoft Advertising

3.53% • Microsoft • Advertising

21.

Lotame

3.49% • Lotame • Advertising

22.

Rubicon

3.23% • The Rubicon Project, Limited • Advertising

23.

Google AdServices

3.18% • Google • Advertising

24.

Fastly

3.14% • Fastly • Hosting

25.

Criteo

2.97% • Criteo • Advertising

26.

ScoreCard Research Beacon

2.84% • comScore, Inc. • Site Analytics

27.

TradeDesk

2.8% • The Trade Desk • Advertising

28.

Index Exchange

2.4% • Index Exchange, Inc. • Advertising

29.

PubMatic

2.4% • PubMatic, Inc. • Advertising

30.

TripleLift

2.39% • TripleLift, Inc. • Advertising

31.

AppNexus

2.38% • Microsoft • Advertising

32.

OpenX

2.26% • OpenX Software Ltd. • Advertising

33.

Live Intent

2.24% • LiveIntent • Site Analytics

34.

Teads

2.22% • Teads • Advertising

35.

33Across

2.16% • 33Across • Advertising

36.

Google Syndication

2.14% • Google • Advertising

37.

fontawesome.com

2.13% • • Hosting

38.

ID5 Sync

2.1% • ID5 Technology Ltd. • Site Analytics

39.

Nativo

2.0% • Nativo • Advertising

40.

Kargo

1.93% • Kargo • Advertising

41.

LiveRamp

1.9% • LiveRamp • Advertising

42.

Flashtalking

1.85% • Flashtalking • Advertising

43.

Yahoo! Analytics

1.78% • Verizon • Site Analytics

44.

Merkle RKG

1.75% • Dentsu Aegis Network • Site Analytics

45.

ShareThrough

1.68% • Sharethrough, Inc • Advertising

46.

Aggregate Knowledge

1.62% • TransUnion • Advertising

47.

Yahoo!

1.54% • Verizon • Site Analytics

48.

X Corp.

1.51% • X Corp. • Social Media

49.

X Analytics

1.46% • X Corp. • Site Analytics

50.

Brandmetrics.com

1.43% • • Advertising

51.

gumgum

1.43% • GumGum • Advertising

52.

Bidswitch

1.26% • Criteo • Advertising

53.

Undertone

1.07% • Perion • Advertising

54.

Dotomi

1.04% • Conversant • Advertising

55.

Yieldmo

1.02% • Yieldmo, Inc. • Advertising

56.

Tapad

1.02% • Telenor Group • Advertising

57.

Adobe Audience Manager

1.01% • Adobe • Advertising