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 is a multinational corporation that specializes in Internet-related services and products.
54 unique domains 15,842,750 detected 95,527 sites 113.33% coverage 156,628 sellers.json

2
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Facebook is an online social networking service that enables its users to connect with friends and family.
12 unique domains 1,345,323 detected 7,868 sites 9.33% coverage 0 sellers.json

3
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Mediavine is the largest exclusive ad management company in the U.S., and a Comscore top five lifestyle property.
11 unique domains 997,060 detected 3,694 sites 4.38% coverage 7,779 sellers.json

4
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Amazon is an international e-commerce website for consumers, sellers, and content creators.
27 unique domains 849,012 detected 2,342 sites 2.78% coverage 1,355 sellers.json

5
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Quantcast helps create a more personalized digital world.
11 unique domains 725,124 detected 1,535 sites 1.82% coverage 0 sellers.json

6
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WordPress offers a web publishing software that can be used to create websites or blogs.
9 unique domains 637,310 detected sites 0.00% coverage sellers.json

7
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Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
7 unique domains 515,179 detected sites 0.00% coverage sellers.json

8
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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 460,317 detected sites 0.00% coverage sellers.json

9
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comScore is a cross-platform measurement company that measures audiences, brands, and consumer behavior.
7 unique domains 380,013 detected sites 0.00% coverage sellers.json

10
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Index Exchange is an exchange technology, enabling digital publishers and suppliers to sell ad impressions programmatically and in realtime.
13 unique domains 356,737 detected 86,302 sites 102.38% coverage 3,185 sellers.json

11
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AppNexus operates a cloud-based software platform that enables and optimizes programmatic online advertising.
12 unique domains 332,276 detected 88,731 sites 105.26% coverage 2,233 sellers.json

12
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Rubicon Project is an advertising automation platform enabling premium publishers to transact advertising brands.
16 unique domains 300,915 detected 80,572 sites 95.59% coverage 3,493 sellers.json

13
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Adobe provides digital media and digital marketing solutions.
86 unique domains 289,774 detected sites 0.00% coverage sellers.json

14
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Criteo is a global technology company that serves personalized online display advertisements to consumers on behalf of e-commerce companies.
31 unique domains 284,310 detected 32,485 sites 38.54% coverage 0 sellers.json

15
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PubMatic is an automation solutions company for an open digital media industry.
20 unique domains 274,799 detected 79,421 sites 94.22% coverage 3,365 sellers.json

16
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LiveRamp is the leading data connectivity platform for the safe and effective use of data.
15 unique domains 270,209 detected sites 0.00% coverage sellers.json

17
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Pinterest is a visual bookmarking tool for saving and discovering creative ideas.
9 unique domains 265,024 detected sites 0.00% coverage sellers.json

18
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Taboola is a content discovery platform that connects people with content they may like but never knew existed.
27 unique domains 197,981 detected 23,767 sites 28.20% coverage 38,318 sellers.json

19
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Skimlinks is the leading commerce content monetization platform, supporting publishers’ creation of a new revenue stream.
5 unique domains 193,433 detected sites 0.00% coverage sellers.json

20
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Moat is a SaaS-based search engine for display ads, enabling users to find and discover their favorite brands.
17 unique domains 183,687 detected sites 0.00% coverage sellers.json

21
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LinkedIn is a professional networking site that allows its members to create business connections, search jobs, and find potential clients.
4 unique domains 182,847 detected sites 0.00% coverage sellers.json

22
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The Trade Desk is an online demand-side platform that provides buying tools for digital media buyers.
8 unique domains 179,965 detected 733 sites 0.87% coverage 0 sellers.json

23
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AdThrive is a lifestyle digital publishing and ad monetization network covering food, home, parenting, and DIY.
6 unique domains 165,965 detected sites 0.00% coverage sellers.json

24
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OneSignal is an easy for developers to add personalized mobile push notifications or web push notifications to their apps.
4 unique domains 162,127 detected sites 0.00% coverage sellers.json

25
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Yahoo operates an online web portal intended to provide the latest news on cricket, finance, lifestyle, movies, celebrity, travel, and more.
19 unique domains 153,428 detected 53,066 sites 62.95% coverage 1,939 sellers.json

26
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Hotjar is a privately owned and funded company that develops intuitive and disruptive research and optimization tools for web businesses.
9 unique domains 147,242 detected sites 0.00% coverage sellers.json

27
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New Relic is a digital intelligence company that delivers full-stack visibility and analytics to enterprises.
4 unique domains 142,634 detected sites 0.00% coverage sellers.json

28
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Fastly helps digital businesses keep pace with their customer expectations by delivering secure and online experiences.
7 unique domains 136,660 detected sites 0.00% coverage sellers.json

29
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AddThis provides social engagement tools, APIs and services personalizing websites for engagement, monetization and traffic boosting.
13 unique domains 135,140 detected sites 0.00% coverage sellers.json

30
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Lotame is the leading provider of data enrichment solutions for global enterprises.
5 unique domains 127,948 detected sites 0.00% coverage sellers.json

31
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Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services.
15 unique domains 126,924 detected sites 0.00% coverage sellers.json

32
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14 unique domains 125,376 detected sites 0.00% coverage sellers.json

33
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17 unique domains 123,131 detected 69,059 sites 81.93% coverage 842 sellers.json

34
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Outbrain is a content discovery platform providing publishers a service for recommended links to increase traffic and generate revenue.
18 unique domains 120,100 detected 29,688 sites 35.22% coverage 3,246 sellers.json

35
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1 unique domains 118,568 detected sites 0.00% coverage sellers.json

36
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OpenX provides digital and advertising technologies that optimize a company's advertising revenue.
35 unique domains 112,833 detected 85,960 sites 101.98% coverage 6,883 sellers.json

37
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Krux helps marketers, publishers and agencies drive revenue by delivering smarter content, commerce and marketing experiences.
6 unique domains 110,229 detected sites 0.00% coverage sellers.json

38
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Chartbeat tools measure and monetize website visitors' attention and engagement on page content and advertising.
5 unique domains 108,699 detected sites 0.00% coverage sellers.json

39
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OneTrust helps companies manage privacy, security and governance requirements in a regulatory environment that constantly changes.
1 unique domains 107,830 detected sites 0.00% coverage sellers.json

40
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IAS is a global technology and data company that empowers the advertising industry to effectively influence consumers everywhere.
5 unique domains 103,444 detected sites 0.00% coverage sellers.json

41
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TripleLift is the programmatic technology company for native, branded content and OTT.
6 unique domains 100,655 detected 41,959 sites 49.78% coverage 4,737 sellers.json

42
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11 unique domains 88,356 detected 43,039 sites 51.06% coverage 0 sellers.json

43
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GumGum is a global technology and media company specializing in contextual intelligence.
8 unique domains 84,945 detected 56,337 sites 66.83% coverage 1,030 sellers.json

44
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7 unique domains 77,850 detected sites 0.00% coverage 0 sellers.json

45
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Sovrn offers products and services to online publishers that help them understand, operate and grow their businesses.
1 unique domains 75,547 detected 67,526 sites 80.11% coverage 0 sellers.json

46
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Akamai® is the provider of cloud services for helping enterprises provide secure, high-performing user experiences on any device.
4 unique domains 74,895 detected sites 0.00% coverage sellers.json

47
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Sirdata is a self-service, third party data-collecting platform .
2 unique domains 74,699 detected sites 0.00% coverage sellers.json

48
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Piano Software provides a business platform for digital media.
10 unique domains 65,675 detected sites 0.00% coverage sellers.json

49
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8 unique domains 65,054 detected sites 0.00% coverage sellers.json

50
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Global marketing research and business services company.
8 unique domains 64,656 detected sites 0.00% coverage sellers.json

51
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Teads invented outstream video advertising and is the no.1 video advertising marketplace in the world.
7 unique domains 63,275 detected 41,882 sites 49.69% coverage 3,413 sellers.json

52
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Making display advertising simple, relevant, rewarding for advertisers, agencies and publishers
10 unique domains 60,868 detected 40,400 sites 47.93% coverage 332 sellers.json

53
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Nativo is an advertising technology platform for brand advertisers and publishers to scale, automate, and measure native ads.
2 unique domains 60,297 detected 15,198 sites 18.03% coverage 652 sellers.json

54
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BlueKai is a data management platform that provides third-party data for use in a company's intelligent marketing activities.
6 unique domains 57,467 detected sites 0.00% coverage sellers.json

55
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Neustar offers a range of cloud-based services enabling marketing and IT professionals to promote and protect their businesses.
6 unique domains 56,652 detected sites 0.00% coverage sellers.json

56
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33Across is a technology company focused on solving the challenge of consumer attention for automated advertising.
10 unique domains 55,216 detected 55,509 sites 65.85% coverage 1,728 sellers.json

57
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MediaMath develops and delivers digital advertising media and data management technology solutions to advertisers worldwide.
6 unique domains 55,202 detected 1,320 sites 1.57% coverage 0 sellers.json

58
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Yandex is a multinational technology company that provides internet-related services and operates a search engine platform in Russia.
1 unique domains 53,749 detected 6 sites 0.01% coverage 0 sellers.json

59
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2 unique domains 53,073 detected sites 0.00% coverage sellers.json

60
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HubSpot develops cloud-based, inbound marketing software that allows businesses to transform the way that they market online.
6 unique domains 51,378 detected sites 0.00% coverage sellers.json

61
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Conversant is a leader in personalized digital marketing.
43 unique domains 50,060 detected 43,985 sites 52.18% coverage 835 sellers.json

62
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Sortable's ad technology works intelligently behind the scenes to optimize ad impressions so clients can focus on creating great content.
1 unique domains 49,520 detected 1,302 sites 1.54% coverage 250 sellers.json

63
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3 unique domains 49,094 detected sites 0.00% coverage sellers.json

64
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Didomi is a consent and preference management platform for collecting and leveraging user consents and preferences for businesses.
1 unique domains 48,385 detected sites 0.00% coverage sellers.json

65
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Sharethrough is a software company that powers in-feed, native ads for premium publishers & brand marketers.
11 unique domains 46,972 detected 38,073 sites 45.17% coverage 1,158 sellers.json

66
3 unique domains 46,927 detected 31,421 sites 37.28% coverage 43,840 sellers.json

67
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Rebuilding data in advertising to protect privacy
12 unique domains 46,918 detected sites 0.00% coverage sellers.json

68
Drawbridge uses large-scale AI and machine learning technology to build Identity solutions that connect, unify, & enhance customer data.
1 unique domains 46,320 detected 1 sites 0.00% coverage 0 sellers.json

69
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Kontera provides content marketing, social marketing, and actionable analytics to enable brands to optimize results.
5 unique domains 45,078 detected sites 0.00% coverage sellers.json

70
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Media.net is a premium contextual advertising company.
18 unique domains 44,354 detected 36,919 sites 43.80% coverage 2,829 sellers.json

71
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Optimizely helps businesses test out different ways to make their websites or apps more effective.
4 unique domains 43,436 detected sites 0.00% coverage sellers.json

72
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Liveintent is a people-based marketing technology platform that generates a customer graph while driving sales and revenue.
6 unique domains 42,884 detected 4,733 sites 5.61% coverage 9,599 sellers.json

73
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Shopify is a cloud-based, multi-channel commerce platform designed for small and medium-sized businesses.
7 unique domains 42,846 detected sites 0.00% coverage sellers.json

74
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RhythmOne is a technology-enabled digital media company that connects online audiences with brands through premium content across devices.
1 unique domains 39,958 detected 71,155 sites 84.41% coverage 3,062 sellers.json

75
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Tealium is a provider of customer data orchestration tools aimed to address challenges in online search, marketing, and segment targeting.
1 unique domains 39,299 detected sites 0.00% coverage sellers.json

76
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Crazy Egg allows website owners to create tests to figure out what users are doing on their site.
1 unique domains 37,984 detected sites 0.00% coverage sellers.json

77
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Custom-built to give Publishers & Ad Platforms the tools they need to find bad ads, along with the data and processes to remove them.
1 unique domains 36,967 detected sites 0.00% coverage sellers.json

78
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Merkle is a customer relationship management agency that designs, executes and evaluates integrated marketing programs.
1 unique domains 36,875 detected sites 0.00% coverage sellers.json

79
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EMX Digital is a digital advertising marketplace.
6 unique domains 36,754 detected sites 0.00% coverage sellers.json

80
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Technology Powered by Deep Learning
5 unique domains 36,430 detected 4,360 sites 5.17% coverage 0 sellers.json

81
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Publishers can programmatically sell guaranteed audiences against their advertisers data with premium inventory
7 unique domains 34,975 detected 41,379 sites 49.09% coverage 495 sellers.json

82
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Contextweb offers real-time solutions to deliver advertisements using categories and keywords.
4 unique domains 34,770 detected 62,626 sites 74.30% coverage 264 sellers.json

83
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Simpli.fi is a demand side platform transforming unstructured data elements to valuable factors that aid in decision making.
3 unique domains 34,198 detected sites 0.00% coverage sellers.json

84
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BounceX enables the world's top brands to better recognize their customers online, providing 1-to-1 marketing at scale.
8 unique domains 33,332 detected sites 0.00% coverage sellers.json

85
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Gourmet Ads is the leading online advertising platform for reaching the household grocery buyers in the United States, Canada, United
3 unique domains 32,891 detected sites 0.00% coverage 1,813 sellers.json

86
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Segment provides customer data infrastructure that helps businesses put their customers first.
10 unique domains 31,910 detected sites 0.00% coverage sellers.json

87
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Parse.ly is an engagement analytics platform aimed at online publishers.
15 unique domains 31,417 detected sites 0.00% coverage sellers.json

88
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Centro's technology platform, Basis, is an advertising solution unifying programmatic buying, workflow automation and business intelligence.
1 unique domains 30,977 detected sites 0.00% coverage sellers.json

89
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Scroll is creating a sustainable experience that puts amazing content in front of engaged users without all the noise.
2 unique domains 29,588 detected sites 0.00% coverage sellers.json

90
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Sailthru helps modern marketers acquire, grow, and retain customers.
5 unique domains 29,243 detected sites 0.00% coverage sellers.json

91
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Tapad is a global marketing technology company connecting brands to consumers across devices.
1 unique domains 28,598 detected sites 0.00% coverage sellers.json

92
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Snap Inc. is a camera company. Reinventing the camera represents the greatest opportunity to improve the way people live and communicate.
4 unique domains 27,969 detected sites 0.00% coverage sellers.json

93
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Beeswax offers Bidder-as-a-Service solution that is scalable, customizable, cloud-based programmatic bidding platform.
1 unique domains 27,196 detected sites 0.00% coverage sellers.json

94
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StackAdapt is the #1 performing native advertising platform helping brands accelerate customer engagement and acquisition.
7 unique domains 26,350 detected sites 0.00% coverage sellers.json

95
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Adroll deals with digital marketing, digital advertising, e-commerce, email, retargeting, advanced tracking and product recommendations.
4 unique domains 25,018 detected 1 sites 0.00% coverage 0 sellers.json

96
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BlueConic's customer data platform liberates first-party data so companies can transform customer relationships and drive business growth.
8 unique domains 23,044 detected sites 0.00% coverage sellers.json

97
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Yieldmo is one of the fastest-growing digital advertising and attention analytics companies.
1 unique domains 22,549 detected 29,187 sites 34.63% coverage 926 sellers.json

98
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The leader in website security & privacy compliance
1 unique domains 22,477 detected sites 0.00% coverage sellers.json

99
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1 unique domains 22,189 detected 9 sites 0.01% coverage 0 sellers.json

100
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Undertone develops high impact, cross-screen digital advertising experiences for brands.
7 unique domains 20,632 detected 29,301 sites 34.76% coverage 356 sellers.json