Systems Overview

There are many systems that power digital advertising on the internet - below you will find a ranking of these platforms, determined by the number sites that use ad system, and the frequency by which the site is communicating with a given ad system.

Some of the communication is benign, but the scope and volume of communication serve as an excellent proxy for the level of insight a platform potentially has regarding the users of given site.

Systems Ranking
1
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Google
Google is a multinational corporation that specializes in Internet-related services and products.
52 unique domains 5,632,961 detected 91,366 sites 116.21% coverage 117,324 sellers.json

2
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Facebook
Facebook is an online social networking service that enables its users to connect with friends and family.
11 unique domains 565,673 detected 7,068 sites 8.99% coverage 0 sellers.json

3
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Amazon
Amazon is an international e-commerce website for consumers, sellers, and content creators.
24 unique domains 379,722 detected 2,342 sites 2.98% coverage 912 sellers.json

4
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Quantcast
Quantcast helps create a more personalized digital world.
11 unique domains 331,888 detected 1,535 sites 1.95% coverage 0 sellers.json

5
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Rubicon Project
Rubicon Project is an advertising automation platform enabling premium publishers to transact advertising brands.
16 unique domains 256,169 detected 75,966 sites 96.62% coverage 3,351 sellers.json

6
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AppNexus
AppNexus operates a cloud-based software platform that enables and optimizes programmatic online advertising.
12 unique domains 238,171 detected 83,543 sites 106.26% coverage 2,099 sellers.json

7
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Index Exchange
Index Exchange is an exchange technology, enabling digital publishers and suppliers to sell ad impressions programmatically and in realtime.
13 unique domains 235,544 detected 80,925 sites 102.93% coverage 2,713 sellers.json

8
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Twitter
Twitter is a social networking platform that allows its users to send and read micro-blogs of up to 280-characters known as tweets.
8 unique domains 228,609 detected sites 0.00% coverage sellers.json

9
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PubMatic
PubMatic is an automation solutions company for an open digital media industry.
20 unique domains 221,284 detected 74,441 sites 94.68% coverage 2,926 sellers.json

10
Mediavine
Mediavine is the largest exclusive ad management company in the U.S., and a Comscore top five lifestyle property.
8 unique domains 193,198 detected 3,694 sites 4.70% coverage 7,779 sellers.json

11
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WordPress
WordPress offers a web publishing software that can be used to create websites or blogs.
9 unique domains 185,702 detected sites 0.00% coverage sellers.json

12
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ComScore
comScore is a cross-platform measurement company that measures audiences, brands, and consumer behavior.
1 unique domains 174,132 detected sites 0.00% coverage sellers.json

13
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Criteo
Criteo is a global technology company that serves personalized online display advertisements to consumers on behalf of e-commerce companies.
15 unique domains 173,254 detected 23,749 sites 30.21% coverage 0 sellers.json

14
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LiveRamp
LiveRamp is the leading data connectivity platform for the safe and effective use of data.
5 unique domains 159,995 detected sites 0.00% coverage sellers.json

15
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Adobe Ad Cloud
Adobe provides digital media and digital marketing solutions.
64 unique domains 157,393 detected sites 0.00% coverage sellers.json

16
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Cloudflare
Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
7 unique domains 154,564 detected sites 0.00% coverage sellers.json

17
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The Trade Desk
The Trade Desk is an online demand-side platform that provides buying tools for digital media buyers.
8 unique domains 133,903 detected 733 sites 0.93% coverage 0 sellers.json

18
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Gemini from Yahoo!
Yahoo operates an online web portal intended to provide the latest news on cricket, finance, lifestyle, movies, celebrity, travel, and more.
18 unique domains 123,155 detected 43,753 sites 55.65% coverage 1,560 sellers.json

19
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Taboola
Taboola is a content discovery platform that connects people with content they may like but never knew existed.
27 unique domains 115,848 detected 21,963 sites 27.94% coverage 33,827 sellers.json

20
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OpenX
OpenX provides digital and advertising technologies that optimize a company's advertising revenue.
35 unique domains 103,091 detected 80,872 sites 102.86% coverage 6,450 sellers.json

21
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Moat
Moat is a SaaS-based search engine for display ads, enabling users to find and discover their favorite brands.
17 unique domains 99,090 detected sites 0.00% coverage sellers.json

22
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Krux
Krux helps marketers, publishers and agencies drive revenue by delivering smarter content, commerce and marketing experiences.
6 unique domains 95,379 detected sites 0.00% coverage sellers.json

23
Pinterest
Pinterest is a visual bookmarking tool for saving and discovering creative ideas.
9 unique domains 90,989 detected sites 0.00% coverage sellers.json

24
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district m
17 unique domains 87,890 detected 64,735 sites 82.34% coverage 831 sellers.json

25
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LinkedIn
LinkedIn is a professional networking site that allows its members to create business connections, search jobs, and find potential clients.
4 unique domains 87,327 detected sites 0.00% coverage sellers.json

26
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Skimlinks
Skimlinks is the leading commerce content monetization platform, supporting publishers’ creation of a new revenue stream.
5 unique domains 83,764 detected sites 0.00% coverage sellers.json

27
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TripleLift
TripleLift is the programmatic technology company for native, branded content and OTT.
6 unique domains 83,693 detected 36,087 sites 45.90% coverage 3,752 sellers.json

28
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Oath
11 unique domains 81,530 detected 38,653 sites 49.16% coverage 0 sellers.json

29
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Lotame
Lotame offers data management technologies designed to provide unstacked data solutions.
5 unique domains 78,698 detected sites 0.00% coverage sellers.json

30
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BidSwitch
7 unique domains 71,742 detected sites 0.00% coverage 0 sellers.json

31
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Chartbeat
Chartbeat tools measure and monetize website visitors' attention and engagement on page content and advertising.
5 unique domains 70,893 detected sites 0.00% coverage sellers.json

32
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GumGum
GumGum is a global technology and media company specializing in contextual intelligence.
8 unique domains 67,161 detected 51,474 sites 65.47% coverage 983 sellers.json

33
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Integral Ad Science
IAS is a global technology and data company that empowers the advertising industry to effectively influence consumers everywhere.
5 unique domains 64,769 detected sites 0.00% coverage sellers.json

34
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Outbrain
Outbrain is a content discovery platform providing publishers a service for recommended links to increase traffic and generate revenue.
10 unique domains 63,996 detected 27,093 sites 34.46% coverage 3,230 sellers.json

35
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OneSignal
OneSignal is an easy for developers to add personalized mobile push notifications or web push notifications to their apps.
4 unique domains 62,645 detected sites 0.00% coverage sellers.json

36
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Fastly
Fastly helps digital businesses keep pace with their customer expectations by delivering secure and online experiences.
7 unique domains 62,219 detected sites 0.00% coverage sellers.json

37
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New Relic
New Relic is a digital intelligence company that delivers full-stack visibility and analytics to enterprises.
2 unique domains 58,908 detected sites 0.00% coverage sellers.json

38
Adthrive
AdThrive is a lifestyle digital publishing and ad monetization network covering food, home, parenting, and DIY.
6 unique domains 56,974 detected sites 0.00% coverage sellers.json

39
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Hotjar
Hotjar is a privately owned and funded company that develops intuitive and disruptive research and optimization tools for web businesses.
9 unique domains 56,898 detected sites 0.00% coverage sellers.json

40
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Sovrn
Sovrn offers products and services to online publishers that help them understand, operate and grow their businesses.
1 unique domains 56,826 detected 62,398 sites 79.37% coverage 0 sellers.json

41
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Nielsen
Global marketing research and business services company.
8 unique domains 54,653 detected sites 0.00% coverage sellers.json

42
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Microsoft
Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services.
15 unique domains 53,067 detected sites 0.00% coverage sellers.json

43
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MediaMath
MediaMath develops and delivers digital advertising media and data management technology solutions to advertisers worldwide.
6 unique domains 50,101 detected 1,320 sites 1.68% coverage 0 sellers.json

44
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33Across
33Across is a technology company focused on solving the challenge of consumer attention for automated advertising.
10 unique domains 49,747 detected 50,267 sites 63.94% coverage 1,713 sellers.json

45
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NeuStar
Neustar offers a range of cloud-based services enabling marketing and IT professionals to promote and protect their businesses.
6 unique domains 48,994 detected sites 0.00% coverage sellers.json

46
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Teads
Teads invented outstream video advertising and is the no.1 video advertising marketplace in the world.
7 unique domains 45,102 detected 37,246 sites 47.37% coverage 3,136 sellers.json

47
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Conversant
Conversant is a leader in personalized digital marketing.
43 unique domains 45,090 detected 37,219 sites 47.34% coverage 751 sellers.json

48
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Piano
Piano Software provides a business platform for digital media.
10 unique domains 42,831 detected sites 0.00% coverage sellers.json

49
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Bluekai
BlueKai is a data management platform that provides third-party data for use in a company's intelligent marketing activities.
3 unique domains 41,971 detected sites 0.00% coverage sellers.json

50
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AddThis
AddThis provides social engagement tools, APIs and services personalizing websites for engagement, monetization and traffic boosting.
13 unique domains 41,670 detected sites 0.00% coverage sellers.json