platform ranking

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.

1 ...
Google

Google is a multinational corporation that specializes in Internet-related services and products.

Walled Garden
54  unique domains
26 mm+ domains detected
795,995 declared customers sellers.json
119,754 claimed customers ads.txt
300 CMP ID
300 GDPR Vendor ID
42% Reseller Accounts
58% Direct Accounts
2 ...
Facebook

Facebook is an online social networking service that enables its users to connect with friends and family.

Walled Garden
12  unique domains
2.3 mm+ domains detected
0 declared customers sellers.json
7,898 claimed customers ads.txt
77% Reseller Accounts
23% Direct Accounts
3 ...
Mediavine

Mediavine is the largest exclusive ad management company in the U.S., and a Comscore top five lifestyle property.

Ad Network
11  unique domains
1.5 mm+ domains detected
8,926 declared customers sellers.json
3,694 claimed customers ads.txt
46 CMP ID
46 GDPR Vendor ID
0% Reseller Accounts
100% Direct Accounts
4 ...
Quantcast

Quantcast helps create a more personalized digital world.

Buying System
11  unique domains
1.4 mm+ domains detected
0 declared customers sellers.json
1,535 claimed customers ads.txt
10 CMP ID
10 GDPR Vendor ID
73% Reseller Accounts
27% Direct Accounts
5 ...
Amazon

Amazon is an international e-commerce website for consumers, sellers, and content creators.

Walled Garden
27  unique domains
1.4 mm+ domains detected
1,526 declared customers sellers.json
2,342 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
1% Direct Accounts
6 ...
PubMatic

PubMatic is an automation solutions company for an open digital media industry.

Ad Exchange
20  unique domains
1.1 mm+ domains detected
3,679 declared customers sellers.json
98,854 claimed customers ads.txt
GDPR Vendor ID
50% Reseller Accounts
50% Direct Accounts
7 ...
WordPress

WordPress offers a web publishing software that can be used to create websites or blogs.

Content, Assets + Frameworks
unique domains
930,000+ domains detected
0 declared customers sellers.json
8 ...
Rubicon Project

Rubicon Project is an advertising automation platform enabling premium publishers to transact advertising brands.

Ad Exchange
16  unique domains
920,000+ domains detected
3,569 declared customers sellers.json
107,122 claimed customers ads.txt
GDPR Vendor ID
53% Reseller Accounts
47% Direct Accounts
9 ...
Index Exchange

Index Exchange is an exchange technology, enabling digital publishers and suppliers to sell ad impressions programmatically and in realtime.

Ad Exchange
13  unique domains
880,000+ domains detected
3,467 declared customers sellers.json
105,998 claimed customers ads.txt
GDPR Vendor ID
52% Reseller Accounts
48% Direct Accounts
10 ...
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.

Walled Garden
unique domains
840,000+ domains detected
0 declared customers sellers.json
11 ...
Cloudflare

Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.

Content Delivery Network
unique domains
800,000+ domains detected
0 declared customers sellers.json
12 ...
LiveRamp

LiveRamp is the leading data connectivity platform for the safe and effective use of data.

Identity Provider
15  unique domains
780,000+ domains detected
0 declared customers sellers.json
3 CMP ID
3 GDPR Vendor ID
13 ...
AppNexus

AppNexus operates a cloud-based software platform that enables and optimizes programmatic online advertising.

Dual Sided Ad Platform
12  unique domains
770,000+ domains detected
2,302 declared customers sellers.json
108,341 claimed customers ads.txt
32 CMP ID
53% Reseller Accounts
47% Direct Accounts
14 ...
Criteo

Criteo is a global technology company that serves personalized online display advertisements to consumers on behalf of e-commerce companies.

Buying System
31  unique domains
660,000+ domains detected
260 declared customers sellers.json
47,755 claimed customers ads.txt
GDPR Vendor ID
46% Reseller Accounts
54% Direct Accounts
15 ...
Adobe Ad Cloud

Adobe provides digital media and digital marketing solutions.

Buying System
86  unique domains
650,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
16 ...
ComScore

comScore is a cross-platform measurement company that measures audiences, brands, and consumer behavior.

Verification Service
unique domains
600,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
17 ...
Gemini from Yahoo!

Yahoo operates an online web portal intended to provide the latest news on cricket, finance, lifestyle, movies, celebrity, travel, and more.

Walled Garden
19  unique domains
580,000+ domains detected
2,240 declared customers sellers.json
73,773 claimed customers ads.txt
47% Reseller Accounts
53% Direct Accounts
18 ...
Taboola

Taboola is a content discovery platform that connects people with content they may like but never knew existed.

Content / Traffic Sharing
27  unique domains
500,000+ domains detected
39,651 declared customers sellers.json
29,546 claimed customers ads.txt
GDPR Vendor ID
33% Reseller Accounts
67% Direct Accounts
19 ...
Pinterest

Pinterest is a visual bookmarking tool for saving and discovering creative ideas.

Walled Garden
unique domains
470,000+ domains detected
0 declared customers sellers.json
20 ...
The Trade Desk

The Trade Desk is an online demand-side platform that provides buying tools for digital media buyers.

Buying System
unique domains
460,000+ domains detected
0 declared customers sellers.json
733 claimed customers ads.txt
GDPR Vendor ID
99% Reseller Accounts
0% Direct Accounts
21 ...
Bootstrap

Content, Assets + Frameworks
unique domains
460,000+ domains detected
22 ...
OpenX

OpenX provides digital and advertising technologies that optimize a company's advertising revenue.

Ad Exchange
35  unique domains
430,000+ domains detected
7,081 declared customers sellers.json
105,287 claimed customers ads.txt
GDPR Vendor ID
54% Reseller Accounts
46% Direct Accounts
23 ...
Hotjar

Hotjar is a privately owned and funded company that develops intuitive and disruptive research and optimization tools for web businesses.

Buyer Tools + Analytics
unique domains
430,000+ domains detected
0 declared customers sellers.json
24 ...
LinkedIn

LinkedIn is a professional networking site that allows its members to create business connections, search jobs, and find potential clients.

unique domains
430,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
25 ...
Krux

Krux helps marketers, publishers and agencies drive revenue by delivering smarter content, commerce and marketing experiences.

Identity Provider
unique domains
360,000+ domains detected
0 declared customers sellers.json
26 ...
BidSwitch

Ad Exchange
unique domains
350,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
27 ...
Moat

Moat is a SaaS-based search engine for display ads, enabling users to find and discover their favorite brands.

Identity Provider
17  unique domains
320,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
28 ...
Skimlinks

Skimlinks is the leading commerce content monetization platform, supporting publishers’ creation of a new revenue stream.

Ad Network
unique domains
290,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
29 ...
AddThis

AddThis provides social engagement tools, APIs and services personalizing websites for engagement, monetization and traffic boosting.

Identity Provider
13  unique domains
290,000+ domains detected
0 declared customers sellers.json
30 ...
Outbrain

Outbrain is a content discovery platform providing publishers a service for recommended links to increase traffic and generate revenue.

Content / Traffic Sharing
18  unique domains
290,000+ domains detected
8,400 declared customers sellers.json
39,462 claimed customers ads.txt
GDPR Vendor ID
55% Reseller Accounts
45% Direct Accounts
31 ...
33Across

33Across is a technology company focused on solving the challenge of consumer attention for automated advertising.

Ad Network
10  unique domains
280,000+ domains detected
1,743 declared customers sellers.json
71,234 claimed customers ads.txt
GDPR Vendor ID
54% Reseller Accounts
46% Direct Accounts
32 ...
Microsoft

Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services.

Walled Garden
15  unique domains
270,000+ domains detected
0 declared customers sellers.json
33 ...
New Relic

New Relic is a digital intelligence company that delivers full-stack visibility and analytics to enterprises.

Publisher Tools + Analytics
unique domains
270,000+ domains detected
0 declared customers sellers.json
34 ...
Lotame

Lotame is the leading provider of data enrichment solutions for global enterprises.

Identity Provider
unique domains
260,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
35 ...
OneSignal

OneSignal is an easy for developers to add personalized mobile push notifications or web push notifications to their apps.

Publisher Tools + Analytics
unique domains
250,000+ domains detected
0 declared customers sellers.json
36 ...
Conversant

Conversant is a leader in personalized digital marketing.

Buying System
43  unique domains
240,000+ domains detected
888 declared customers sellers.json
59,350 claimed customers ads.txt
23 CMP ID
23 GDPR Vendor ID
38% Reseller Accounts
62% Direct Accounts
37 ...
TripleLift

TripleLift is the programmatic technology company for native, branded content and OTT.

Ad Exchange
unique domains
230,000+ domains detected
4,962 declared customers sellers.json
57,299 claimed customers ads.txt
GDPR Vendor ID
31% Reseller Accounts
69% Direct Accounts
38 ...
AdForm

Making display advertising simple, relevant, rewarding for advertisers, agencies and publishers

Buying System
10  unique domains
230,000+ domains detected
349 declared customers sellers.json
55,137 claimed customers ads.txt
GDPR Vendor ID
61% Reseller Accounts
39% Direct Accounts
39 ...
district m

Ad Exchange
17  unique domains
210,000+ domains detected
857 declared customers sellers.json
85,988 claimed customers ads.txt
GDPR Vendor ID
49% Reseller Accounts
51% Direct Accounts
40 ...
Adthrive

AdThrive is a lifestyle digital publishing and ad monetization network covering food, home, parenting, and DIY.

Ad Network
unique domains
210,000+ domains detected
3,721 declared customers sellers.json
41 ...
Integral Ad Science

IAS is a global technology and data company that empowers the advertising industry to effectively influence consumers everywhere.

Verification Service
unique domains
210,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
42 ...
Bluekai

BlueKai is a data management platform that provides third-party data for use in a company's intelligent marketing activities.

Identity Provider
unique domains
210,000+ domains detected
0 declared customers sellers.json
43 ...
Oath

Walled Garden
11  unique domains
210,000+ domains detected
0 declared customers sellers.json
55,500 claimed customers ads.txt
49% Reseller Accounts
51% Direct Accounts
44 ...
ShareThis

Ad Network
14  unique domains
200,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
45 ...
Cookie Pro

Consent Management Platform
unique domains
200,000+ domains detected
0 declared customers sellers.json
46 ...
MediaMath

MediaMath develops and delivers digital advertising media and data management technology solutions to advertisers worldwide.

Buying System
unique domains
200,000+ domains detected
0 declared customers sellers.json
1,320 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
0% Direct Accounts
47 ...
Amobee

Kontera provides content marketing, social marketing, and actionable analytics to enable brands to optimize results.

Buying System
unique domains
190,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
48 ...
Fastly

Fastly helps digital businesses keep pace with their customer expectations by delivering secure and online experiences.

Content Delivery Network
unique domains
190,000+ domains detected
0 declared customers sellers.json
49 ...
Onetrust

OneTrust helps companies manage privacy, security and governance requirements in a regulatory environment that constantly changes.

Consent Management Platform
unique domains
180,000+ domains detected
0 declared customers sellers.json
28 CMP ID
50 ...
NeuStar

Neustar offers a range of cloud-based services enabling marketing and IT professionals to promote and protect their businesses.

Identity Provider
unique domains
180,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
51 ...
Chartbeat

Chartbeat tools measure and monetize website visitors' attention and engagement on page content and advertising.

Publisher Tools + Analytics
unique domains
180,000+ domains detected
0 declared customers sellers.json
52 ...
GumGum

GumGum is a global technology and media company specializing in contextual intelligence.

Ad Network
unique domains
180,000+ domains detected
1,050 declared customers sellers.json
72,333 claimed customers ads.txt
GDPR Vendor ID
52% Reseller Accounts
48% Direct Accounts
53 ...
Nielsen

Global marketing research and business services company.

Publisher Tools + Analytics
unique domains
170,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
54 ...
Sovrn

Sovrn offers products and services to online publishers that help them understand, operate and grow their businesses.

Ad Exchange
unique domains
170,000+ domains detected
0 declared customers sellers.json
85,097 claimed customers ads.txt
GDPR Vendor ID
44% Reseller Accounts
56% Direct Accounts
55 ...
LiveIntent

Liveintent is a people-based marketing technology platform that generates a customer graph while driving sales and revenue.

Identity Provider
unique domains
160,000+ domains detected
9,697 declared customers sellers.json
5,074 claimed customers ads.txt
GDPR Vendor ID
26% Reseller Accounts
74% Direct Accounts
56 ...
Tribal Fusion

Exponential Interactive is a global provider of advertising intelligence and digital media solutions to brand advertisers.

Buying System
unique domains
150,000+ domains detected
0 declared customers sellers.json
7,107 claimed customers ads.txt
23% Reseller Accounts
77% Direct Accounts
57 ...
Tribal Fusion

Exponential Interactive is a global provider of advertising intelligence and digital media solutions to brand advertisers.

Buyer Tools + Analytics
unique domains
150,000+ domains detected
0 declared customers sellers.json
7,107 claimed customers ads.txt
23% Reseller Accounts
77% Direct Accounts
58 ...
Simpli.fi

Simpli.fi is a demand side platform transforming unstructured data elements to valuable factors that aid in decision making.

unique domains
150,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
59 ...
Media.net

Media.net is a premium contextual advertising company.

Ad Exchange
18  unique domains
150,000+ domains detected
3,196 declared customers sellers.json
48,344 claimed customers ads.txt
GDPR Vendor ID
29% Reseller Accounts
71% Direct Accounts
60 ...
TapAd

Tapad is a global marketing technology company connecting brands to consumers across devices.

Identity Provider
unique domains
140,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
61 ...
HubSpot

HubSpot develops cloud-based, inbound marketing software that allows businesses to transform the way that they market online.

Buyer Tools + Analytics
unique domains
140,000+ domains detected
0 declared customers sellers.json
62 ...
Beeswax

Beeswax offers Bidder-as-a-Service solution that is scalable, customizable, cloud-based programmatic bidding platform.

Buying System
unique domains
130,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
63 ...
RhythmOne

RhythmOne is a technology-enabled digital media company that connects online audiences with brands through premium content across devices.

Ad Network
unique domains
130,000+ domains detected
3,094 declared customers sellers.json
89,494 claimed customers ads.txt
GDPR Vendor ID
51% Reseller Accounts
49% Direct Accounts
64 ...
Sharethrough

Sharethrough is a software company that powers in-feed, native ads for premium publishers & brand marketers.

Dual Sided Ad Platform
11  unique domains
130,000+ domains detected
1,237 declared customers sellers.json
54,918 claimed customers ads.txt
GDPR Vendor ID
34% Reseller Accounts
66% Direct Accounts
65 ...
Akamai

Akamai® is the provider of cloud services for helping enterprises provide secure, high-performing user experiences on any device.

Content Delivery Network
unique domains
120,000+ domains detected
0 declared customers sellers.json
66 ...
DataXu

Dataxu is a software company that helps marketing professionals use data to improve their advertising.

Buying System
unique domains
120,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
67 ...
Centro Brand Exchange

Centro's technology platform, Basis, is an advertising solution unifying programmatic buying, workflow automation and business intelligence.

Ad Exchange
unique domains
120,000+ domains detected
0 declared customers sellers.json
68 ...
Smart Ad Server

Smart AdServer is a leading ad monetization platform built for premium publishers to serve demanding buyers.

Dual Sided Ad Platform
unique domains
120,000+ domains detected
1,311 declared customers sellers.json
79,556 claimed customers ads.txt
GDPR Vendor ID
51% Reseller Accounts
49% Direct Accounts
69
Drawbridge

Drawbridge uses large-scale AI and machine learning technology to build Identity solutions that connect, unify, & enhance customer data.

Buying System
unique domains
120,000+ domains detected
0 declared customers sellers.json
1 claimed customers ads.txt
0% Reseller Accounts
100% Direct Accounts
70 ...
Teads

Teads invented outstream video advertising and is the no.1 video advertising marketplace in the world.

Ad Network
unique domains
120,000+ domains detected
3,498 declared customers sellers.json
54,727 claimed customers ads.txt
GDPR Vendor ID
40% Reseller Accounts
60% Direct Accounts
71 ...
Sirdata

Sirdata is a self-service, third party data-collecting platform .

unique domains
120,000+ domains detected
0 declared customers sellers.json
92 CMP ID
92 GDPR Vendor ID
72 ...
Piano

Piano Software provides a business platform for digital media.

Identity Provider
10  unique domains
120,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
73 ...
PulsePoint

Contextweb offers real-time solutions to deliver advertisements using categories and keywords.

Ad Exchange
unique domains
120,000+ domains detected
281 declared customers sellers.json
78,919 claimed customers ads.txt
55% Reseller Accounts
45% Direct Accounts
74 ...
Nativo

Nativo is an advertising technology platform for brand advertisers and publishers to scale, automate, and measure native ads.

Ad Network
unique domains
110,000+ domains detected
669 declared customers sellers.json
30,184 claimed customers ads.txt
GDPR Vendor ID
35% Reseller Accounts
65% Direct Accounts
75
OneTag

Ad Network
unique domains
110,000+ domains detected
43,906 declared customers sellers.json
48,626 claimed customers ads.txt
65 CMP ID
65 GDPR Vendor ID
54% Reseller Accounts
46% Direct Accounts
76 ...
Shopify

Shopify is a cloud-based, multi-channel commerce platform designed for small and medium-sized businesses.

Buying System
unique domains
110,000+ domains detected
0 declared customers sellers.json
77 ...
Zeta

Zeta offers technology and marketing services to help brands acquire, engage, and retain customers.

unique domains
110,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
78 ...
StackAdapt

StackAdapt is the #1 performing native advertising platform helping brands accelerate customer engagement and acquisition.

Ad Network
unique domains
110,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
79 ...
RTB House

Technology Powered by Deep Learning

unique domains
110,000+ domains detected
0 declared customers sellers.json
4,360 claimed customers ads.txt
GDPR Vendor ID
52% Reseller Accounts
77% Direct Accounts
80 ...
EMX digital

EMX Digital is a digital advertising marketplace.

Ad Network
unique domains
100,000+ domains detected
1,468 declared customers sellers.json
GDPR Vendor ID
81 ...
Mailchimp

Publisher Tools + Analytics
unique domains
99,000+ domains detected
0 declared customers sellers.json
82 ...
ID5

The first centralised cookie synchronisation platform .

Identity Provider
unique domains
99,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
83 ...
Unruly

Unruly is an advertising technology company that gets videos watched, tracked, and shared across the Open Web.

Ad Network
10  unique domains
98,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
84 ...
Adelphic

Adelphic's patented technology overcomes the limitations of user identification in mobile and across networked devices.

Identity Provider
unique domains
90,000+ domains detected
0 declared customers sellers.json
85 ...
Zemanta

Zemanta develops enterprise software for native advertising. Brands use the Zemanta One platform to execute their global native ad spend.

Buying System
unique domains
90,000+ domains detected
0 declared customers sellers.json
75 claimed customers ads.txt
GDPR Vendor ID
99% Reseller Accounts
1% Direct Accounts
86 ...
Technorati

Synacor provides solutions that enable MSOs, ISPs, and telcos to bundle, promote, and deliver narrowband and broadband content and services.

Ad Network
unique domains
90,000+ domains detected
322 declared customers sellers.json
43,082 claimed customers ads.txt
64% Reseller Accounts
36% Direct Accounts
87 ...
Technorati

Synacor provides solutions that enable MSOs, ISPs, and telcos to bundle, promote, and deliver narrowband and broadband content and services.

Content / Traffic Sharing
unique domains
90,000+ domains detected
322 declared customers sellers.json
43,082 claimed customers ads.txt
64% Reseller Accounts
36% Direct Accounts
88 ...
Permutive

Rebuilding data in advertising to protect privacy

Identity Provider
12  unique domains
89,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
89 ...
Sonobi

Publishers can programmatically sell guaranteed audiences against their advertisers data with premium inventory

Ad Exchange
unique domains
88,000+ domains detected
534 declared customers sellers.json
56,582 claimed customers ads.txt
GDPR Vendor ID
49% Reseller Accounts
51% Direct Accounts
90 ...
OwnerIQ

OwnerIQ provides online advertising solutions and marketing channels for brands, retailers, and manufacturers.

Buying System
unique domains
87,000+ domains detected
0 declared customers sellers.json
91 ...
Cookiebot

Consent Management Platform
unique domains
84,000+ domains detected
0 declared customers sellers.json
162 CMP ID
92 ...
Yandex

Yandex is a multinational technology company that provides internet-related services and operates a search engine platform in Russia.

unique domains
82,000+ domains detected
0 declared customers sellers.json
6 claimed customers ads.txt
0% Reseller Accounts
100% Direct Accounts
93 ...
Didomi

Didomi is a consent and preference management platform for collecting and leveraging user consents and preferences for businesses.

Consent Management Platform
unique domains
78,000+ domains detected
0 declared customers sellers.json
7 CMP ID
94 ...
AdTheorent

AdTheorent’s machine learning technology powers predictive targeting, predictive creative, and self-learning insights.

unique domains
76,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
95 ...
Sourcepoint

Consent Management Platform
unique domains
76,000+ domains detected
0 declared customers sellers.json
6 CMP ID
6 GDPR Vendor ID
96 ...
Optimizely

Optimizely helps businesses test out different ways to make their websites or apps more effective.

Buyer Tools + Analytics
unique domains
75,000+ domains detected
0 declared customers sellers.json
97 ...
SpotX

SpotX is a video advertising platform that enables publishers to monetize content across desktop, mobile, and connected TV devices.

Ad Exchange
unique domains
74,000+ domains detected
982 declared customers sellers.json
75,624 claimed customers ads.txt
GDPR Vendor ID
61% Reseller Accounts
39% Direct Accounts
98 ...
Snapchat

Snap Inc. is a camera company. Reinventing the camera represents the greatest opportunity to improve the way people live and communicate.

Walled Garden
unique domains
73,000+ domains detected
0 declared customers sellers.json
99 ...
AdRoll

Adroll deals with digital marketing, digital advertising, e-commerce, email, retargeting, advanced tracking and product recommendations.

Buying System
unique domains
71,000+ domains detected
0 declared customers sellers.json
1 claimed customers ads.txt
0% Reseller Accounts
100% Direct Accounts
100 ...
Yieldmo

Yieldmo is one of the fastest-growing digital advertising and attention analytics companies.

Ad Exchange
unique domains
70,000+ domains detected
1,030 declared customers sellers.json
41,316 claimed customers ads.txt
GDPR Vendor ID
30% Reseller Accounts
70% Direct Accounts