harvard.edu

1.

Google Tag

49.42% • Google • Advertising

2.

Google Static

44.97% • Google • Hosting

3.

Google

35.6% • Google • Advertising

4.

Amazon Web Services

23.95% • Amazon • Hosting

5.

Google Fonts

22.2% • Google • Hosting

6.

jsDelivr

19.32% • • Hosting

7.

Google Analytics

18.34% • Google • Site Analytics

8.

Google APIs

15.65% • Google • Hosting

9.

Amazon CloudFront

14.18% • Amazon • Hosting

10.

Cloudflare

13.97% • Cloudflare • Hosting

11.

jQuery

13.42% • JS Foundation • Hosting

12.

DoubleClick

13.09% • Google • Advertising

13.

Canvas

12.09% • • Customer Interaction

14.

Heap

11.93% • Heap • Site Analytics

15.

fontawesome.com

10.56% • • Hosting

16.

New Relic

9.44% • New Relic • Site Analytics

17.

Facebook

8.22% • Meta • Advertising

18.

YouTube

7.81% • Google • Audio/Video Player

19.

SOASTA mPulse

7.66% • Akamai Technologies • Site Analytics

20.

Hotjar

7.58% • Hotjar • Site Analytics

21.

LinkedIn Analytics

6.71% • Microsoft • Site Analytics

22.

Adobe Typekit

5.28% • Adobe • Utilities

23.

Google Recaptcha

5.18% • Google • Utilities

24.

Google AdServices

4.85% • Google • Advertising

25.

Jetpack

4.65% • Automattic • Site Analytics

26.

Zendesk CDN

4.53% • Zendesk • Misc

27.

Adobe Dynamic Tag Management

4.53% • Adobe • Utilities

28.

Microsoft Advertising

4.45% • Microsoft • Advertising

29.

Zendesk

4.36% • Zendesk • Customer Interaction

30.

Adobe Audience Manager

4.26% • Adobe • Advertising

31.

Qualtrics

4.24% • Qualtrics • Site Analytics

32.

Marketo

4.21% • Marketo • Advertising

33.

Adobe Experience Cloud

4.15% • Adobe • Site Analytics

34.

Google User Content

3.9% • Google • Hosting

35.

Appcues

3.65% • • Customer Interaction

36.

Eloqua

3.38% • Oracle • Advertising

37.

Launch Darkly

3.25% • Launch Darkly • Utilities

38.

SiteImprove Analytics

2.96% • Siteimprove • Site Analytics

39.

unpkg

2.61% • • Hosting

40.

Parse.ly

2.59% • Parse.ly • Site Analytics

41.

Bootstrap CDN

2.45% • BootstrapCDN • Hosting

42.

OneTrust

2.37% • OneTrust • Consent Management

43.

Contentful GmbH

2.28% • Contentful GmbH • Hosting

44.

Kaltura

2.27% • Kaltura • Audio/Video Player

45.

Google Photos

1.87% • Google • Hosting

46.

Sentry

1.68% • Sentry • Utilities

47.

HubSpot

1.64% • HubSpot • Site Analytics

48.

Google Analytics with signals

1.6% • Google • Advertising

49.

LinkedIn Ads

1.51% • Microsoft • Advertising

50.

Convert

1.36% • Convert • Site Analytics

51.

GitHub

1.28% • GitHub, Inc. • Customer Interaction

52.

AddToAny

1.27% • AddToAny • Social Media

53.

HubSpot Forms

1.22% • HubSpot • Customer Interaction

54.

Webfonts by Hoefler&Co

1.19% • • Hosting

55.

StackAdapt

1.18% • StackAdapt • Advertising

56.

HubSpot CMP

1.14% • HubSpot • Consent Management

57.

Plausible Analytics

1.13% • Plausible Insights OÜ • Site Analytics

58.

Optimizely

1.04% • Optimizely • Site Analytics