quizlet.com

1.

Google Tag

95.9% • Google • Advertising

2.

Cloudflare

94.27% • Cloudflare • Hosting

3.

ScoreCard Research Beacon

90.44% • comScore, Inc. • Site Analytics

4.

Quantcast

90.3% • Quantcast International Limited • Advertising

5.

OneTrust

81.13% • OneTrust • Consent Management

6.

Google Marketing Platform

62.54% • Google • Advertising

7.

Google User Content

61.41% • Google • Hosting

8.

Amazon Advertising

61.38% • Amazon • Advertising

9.

LiveRamp CMP

40.83% • LiveRamp • Consent Management

10.

Amazon CloudFront

28.48% • Amazon • Hosting

11.

Facebook Social Graph

19.48% • Meta • Social Media

12.

Facebook CDN

17.48% • Meta • Hosting

13.

PageFair

12.28% • Blockthrough • Customer Interaction

14.

Ad Lightning

11.98% • Ad Lightning • Advertising

15.

PubMatic

9.81% • PubMatic, Inc. • Advertising

16.

Rubicon

9.67% • The Rubicon Project, Limited • Advertising

17.

Google

8.66% • Google • Advertising

18.

Google Static

8.48% • Google • Hosting

19.

Google Accounts

8.32% • Google • Customer Interaction

20.

AppNexus

8.19% • Microsoft • Advertising

21.

Index Exchange

8.14% • Index Exchange, Inc. • Advertising

22.

Yahoo! Analytics

8.09% • Verizon • Site Analytics

23.

Yahoo!

7.88% • Verizon • Site Analytics

24.

Teads

7.61% • Teads • Advertising

25.

LiveRamp

6.6% • LiveRamp • Advertising

26.

OpenX

6.52% • OpenX Software Ltd. • Advertising

27.

Rise

6.17% • Rise Code • Advertising

28.

Google APIs

5.63% • Google • Hosting

29.

Sentry

5.28% • Sentry • Utilities

30.

Google Fonts

4.24% • Google • Hosting

31.

Google Analytics

4.02% • Google • Site Analytics

32.

Brandmetrics.com

3.04% • • Advertising

33.

ID5 Sync

2.93% • ID5 Technology • Advertising

34.

AppsFlyer

2.87% • AppsFlyer • Site Analytics

35.

Lotame

2.87% • Lotame • Advertising

36.

Epsilon

2.82% • Epsilon • Advertising

37.

Amazon Web Services

2.72% • Amazon • Hosting

38.

Google Syndication

2.31% • Google • Advertising

39.

SMART AdServer

2.24% • Smart Adserver • Advertising

40.

sovrn

2.11% • Sovrn Holdings Inc • Advertising

41.

ShareThrough

2.02% • Sharethrough, Inc • Advertising

42.

Adobe Audience Manager

1.97% • Adobe • Advertising

43.

TradeDesk

1.93% • The Trade Desk • Advertising

44.

Criteo

1.91% • Criteo • Advertising

45.

33Across

1.82% • 33Across • Advertising

46.

Yahoo! Ad Manager Plus

1.82% • Verizon • Advertising

47.

Bidswitch

1.78% • Criteo • Advertising

48.

Media.net

1.71% • Media.net • Advertising

49.

Google AdServices

1.63% • Google • Advertising

50.

Facebook

1.63% • Meta • Advertising

51.

Rhythmone Beacon

1.59% • RhythmOne, LLC • Advertising

52.

Live Intent

1.57% • LiveIntent • Site Analytics

53.

TripleLift

1.51% • TripleLift, Inc. • Advertising

54.

ad-delivery.net

1.45% • • Misc

55.

Sonobi

1.44% • Sonobi, Inc • Advertising

56.

Google Play Services

1.44% • Google • Hosting

57.

StickyAds

1.41% • Comcast • Advertising

58.

Adform

1.34% • Adform • Advertising

59.

Outbrain

1.29% • Outbrain • Advertising

60.

Turn Inc.

1.29% • Singtel • Advertising

61.

Zemanta

1.29% • Outbrain • Customer Interaction

62.

Beeswax

1.29% • Beeswax • Advertising

63.

Rich Audience

1.28% • Rich Audience • Advertising

64.

Simpli.fi

1.23% • Simplifi Holdings Inc. • Advertising

65.

SiteScout by Centro

1.23% • Centro • Advertising

66.

RTB House

1.21% • RTB House • Advertising

67.

PulsePoint

1.21% • PulsePoint, Inc. • Advertising

68.

StackAdapt

1.17% • StackAdapt • Advertising

69.

Smaato

1.16% • Verve Group • Advertising

70.

Flickr Badge

1.16% • SmugMug • Social Media

71.

Dotomi

1.15% • Conversant • Advertising

72.

Tapad

1.14% • Telenor Group • Advertising

73.

StreamRail

1.12% • ironSource • Advertising

74.

MediaMath

1.05% • MediaMath, Inc. • Advertising

75.

OneTag

1.03% • OneTag • Advertising

76.

SundaySky

1.01% • SundaySky • Advertising

77.

Connatix

1.0% • Connatix Native Exchange • Advertising