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
4,788  unique domains
91 mm+ domains detected
897,087 declared customers sellers.json
144,579 claimed customers ads.txt
300 CMP ID
300 GDPR Vendor ID
42% Reseller Accounts
58% Direct Accounts
2 ...
PubMatic

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

Ad Exchange
28  unique domains
10 mm+ domains detected
4,271 declared customers sellers.json
118,948 claimed customers ads.txt
GDPR Vendor ID
50% Reseller Accounts
50% Direct Accounts
3 ...
Facebook

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

Walled Garden
45  unique domains
8.8 mm+ domains detected
0 declared customers sellers.json
9,831 claimed customers ads.txt
78% Reseller Accounts
22% Direct Accounts
4 ...
Rubicon Project

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

Ad Exchange
41  unique domains
8.2 mm+ domains detected
3,822 declared customers sellers.json
128,129 claimed customers ads.txt
GDPR Vendor ID
53% Reseller Accounts
47% Direct Accounts
5 ...
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
6.4 mm+ domains detected
4,277 declared customers sellers.json
125,998 claimed customers ads.txt
GDPR Vendor ID
53% Reseller Accounts
47% Direct Accounts
6 ...
LiveRamp

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

Identity Provider
17  unique domains
5.9 mm+ domains detected
0 declared customers sellers.json
3 CMP ID
3 GDPR Vendor ID
7 ...
Quantcast

Quantcast helps create a more personalized digital world.

Buying System
15  unique domains
5.8 mm+ domains detected
0 declared customers sellers.json
1,282 claimed customers ads.txt
10 CMP ID
10 GDPR Vendor ID
89% Reseller Accounts
11% Direct Accounts
8 ...
Yahoo!

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

Walled Garden
124  unique domains
5.7 mm+ domains detected
2,596 declared customers sellers.json
95,431 claimed customers ads.txt
GDPR Vendor ID
50% Reseller Accounts
50% Direct Accounts
9 ...
AppNexus

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

Dual Sided Ad Platform
13  unique domains
5.3 mm+ domains detected
2,482 declared customers sellers.json
128,270 claimed customers ads.txt
32 CMP ID
54% Reseller Accounts
46% Direct Accounts
10 ...
Adobe Ad Cloud

Adobe provides digital media and digital marketing solutions.

Buying System
113  unique domains
5.2 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
11 ...
Amazon

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

Walled Garden
63  unique domains
5 mm+ domains detected
1,745 declared customers sellers.json
2,888 claimed customers ads.txt
GDPR Vendor ID
99% Reseller Accounts
1% Direct Accounts
12 ...
Criteo

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

Buying System
47  unique domains
5 mm+ domains detected
498 declared customers sellers.json
64,905 claimed customers ads.txt
GDPR Vendor ID
46% Reseller Accounts
54% Direct Accounts
13 ...
OpenX

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

Ad Exchange
39  unique domains
5 mm+ domains detected
9,226 declared customers sellers.json
124,704 claimed customers ads.txt
GDPR Vendor ID
54% Reseller Accounts
46% Direct Accounts
14 ...
33Across

33Across is a supply-side platform with integrated solutions to unlock addressability and monetization.

Ad Network
15  unique domains
4 mm+ domains detected
1,761 declared customers sellers.json
84,339 claimed customers ads.txt
GDPR Vendor ID
57% Reseller Accounts
43% Direct Accounts
15 ...
Mediavine

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

Ad Network
17  unique domains
3.7 mm+ domains detected
26,499 declared customers sellers.json
8,591 claimed customers ads.txt
46 CMP ID
46 GDPR Vendor ID
0% Reseller Accounts
100% Direct Accounts
16 ...
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
28  unique domains
3.6 mm+ domains detected
0 declared customers sellers.json
17 ...
Taboola

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

Content / Traffic Sharing
72  unique domains
3.6 mm+ domains detected
48,898 declared customers sellers.json
32,307 claimed customers ads.txt
GDPR Vendor ID
25% Reseller Accounts
75% Direct Accounts
18 ...
BidSwitch

Ad Exchange
17  unique domains
3.5 mm+ domains detected
0 declared customers sellers.json
557 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
0% Direct Accounts
19 ...
The Trade Desk

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

Buying System
10  unique domains
3.4 mm+ domains detected
0 declared customers sellers.json
824 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
0% Direct Accounts
20 ...
Conversant

Conversant is a leader in personalized digital marketing.

Buying System
40  unique domains
3.2 mm+ domains detected
959 declared customers sellers.json
76,108 claimed customers ads.txt
23 CMP ID
23 GDPR Vendor ID
41% Reseller Accounts
59% Direct Accounts
21 ...
Hotjar

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

Buyer Tools + Analytics
43  unique domains
3.2 mm+ domains detected
0 declared customers sellers.json
22 ...
Krux

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

Identity Provider
unique domains
3.1 mm+ domains detected
0 declared customers sellers.json
23 ...
Microsoft

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

Walled Garden
80  unique domains
2.7 mm+ domains detected
0 declared customers sellers.json
24 ...
Cloudflare

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

Content Delivery Network
14  unique domains
2.6 mm+ domains detected
0 declared customers sellers.json
25 ...
LinkedIn

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

13  unique domains
2.6 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
26 ...
WordPress

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

Content, Assets + Frameworks
317  unique domains
2.5 mm+ domains detected
0 declared customers sellers.json
27 ...
Smart Ad Server

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

Dual Sided Ad Platform
71  unique domains
2.5 mm+ domains detected
1,478 declared customers sellers.json
100,289 claimed customers ads.txt
GDPR Vendor ID
51% Reseller Accounts
49% Direct Accounts
28 ...
HubSpot

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

Buyer Tools + Analytics
34  unique domains
2.5 mm+ domains detected
0 declared customers sellers.json
29 ...
Pinterest

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

Walled Garden
16  unique domains
2.4 mm+ domains detected
0 declared customers sellers.json
30 ...
Amobee

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

Buying System
unique domains
2.2 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
31 ...
Media.net

Media.net is a premium contextual advertising company.

Ad Exchange
37  unique domains
2.1 mm+ domains detected
4,523 declared customers sellers.json
63,662 claimed customers ads.txt
GDPR Vendor ID
32% Reseller Accounts
68% Direct Accounts
32 ...
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
2 mm+ domains detected
0 declared customers sellers.json
33 ...
AdForm

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

Buying System
13  unique domains
2 mm+ domains detected
393 declared customers sellers.json
69,318 claimed customers ads.txt
GDPR Vendor ID
60% Reseller Accounts
40% Direct Accounts
34 ...
ComScore

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

Verification Service
unique domains
2 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
35 ...
TapAd

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

Identity Provider
unique domains
2 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
36 ...
TripleLift

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

Ad Exchange
unique domains
1.9 mm+ domains detected
5,442 declared customers sellers.json
79,085 claimed customers ads.txt
GDPR Vendor ID
38% Reseller Accounts
62% Direct Accounts
37 ...
Tribal Fusion

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

Buying System
unique domains
1.9 mm+ domains detected
0 declared customers sellers.json
7,285 claimed customers ads.txt
23% Reseller Accounts
77% Direct Accounts
38 ...
Tribal Fusion

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

Buyer Tools + Analytics
unique domains
1.9 mm+ domains detected
0 declared customers sellers.json
7,285 claimed customers ads.txt
23% Reseller Accounts
77% Direct Accounts
39 ...
Outbrain

Outbrain provides a recommendation platform to connect advertisers to open web consumers.

Content / Traffic Sharing
29  unique domains
1.8 mm+ domains detected
8,716 declared customers sellers.json
48,007 claimed customers ads.txt
GDPR Vendor ID
53% Reseller Accounts
47% Direct Accounts
40 ...
Improve Digital

Improve Digital is an independent publisher monetization technology provider.

Ad Network
12  unique domains
1.8 mm+ domains detected
1,342 declared customers sellers.json
89,131 claimed customers ads.txt
GDPR Vendor ID
55% Reseller Accounts
45% Direct Accounts
41 ...
Lotame

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

Identity Provider
unique domains
1.7 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
42 ...
MediaMath

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

Buying System
10  unique domains
1.7 mm+ domains detected
0 declared customers sellers.json
2,279 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
0% Direct Accounts
43 ...
AddThis

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

Identity Provider
23  unique domains
1.7 mm+ domains detected
0 declared customers sellers.json
44 ...
LiveIntent

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

Identity Provider
unique domains
1.6 mm+ domains detected
9,961 declared customers sellers.json
4,688 claimed customers ads.txt
GDPR Vendor ID
28% Reseller Accounts
72% Direct Accounts
45 ...
Oath

Walled Garden
10  unique domains
1.6 mm+ domains detected
0 declared customers sellers.json
63,421 claimed customers ads.txt
48% Reseller Accounts
52% Direct Accounts
46 ...
NeuStar

Neustar is a tech company that offers a range of cloud-based services for marketing and IT professionals.

Identity Provider
unique domains
1.6 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
47 ...
DataXu

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

Buying System
unique domains
1.5 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
48 ...
Zeta

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

unique domains
1.5 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
49 ...
Simpli.fi

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

unique domains
1.5 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
50 ...
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
1.4 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
51 ...
Nielsen

Global marketing research and business services company.

Publisher Tools + Analytics
12  unique domains
1.4 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
52 ...
GumGum

GumGum is an Artificial Intelligence company that uses machine learning to extract value from digital content.

Ad Network
14  unique domains
1.4 mm+ domains detected
1,631 declared customers sellers.json
87,481 claimed customers ads.txt
GDPR Vendor ID
52% Reseller Accounts
48% Direct Accounts
53 ...
RhythmOne

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

Ad Network
unique domains
1.3 mm+ domains detected
3,275 declared customers sellers.json
101,734 claimed customers ads.txt
GDPR Vendor ID
49% Reseller Accounts
51% Direct Accounts
54 ...
Max Point Interactive

Ad Exchange
12  unique domains
1.3 mm+ domains detected
55 ...
ID5

The first centralised cookie synchronisation platform .

Identity Provider
unique domains
1.3 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
56 ...
Sovrn

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

Ad Exchange
unique domains
1.3 mm+ domains detected
0 declared customers sellers.json
103,758 claimed customers ads.txt
GDPR Vendor ID
45% Reseller Accounts
55% Direct Accounts
57 ...
Beeswax

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

Buying System
unique domains
1.3 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
58 ...
Bootstrap

Content, Assets + Frameworks
unique domains
1.3 mm+ domains detected
59 ...
New Relic

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

Publisher Tools + Analytics
unique domains
1.2 mm+ domains detected
0 declared customers sellers.json
60 ...
Moat

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

Identity Provider
19  unique domains
1.2 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
61 ...
District M

Ad Exchange
35  unique domains
1.2 mm+ domains detected
865 declared customers sellers.json
96,898 claimed customers ads.txt
GDPR Vendor ID
48% Reseller Accounts
52% Direct Accounts
62 ...
Sharethrough

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

Dual Sided Ad Platform
16  unique domains
1.2 mm+ domains detected
1,436 declared customers sellers.json
74,470 claimed customers ads.txt
GDPR Vendor ID
40% Reseller Accounts
60% Direct Accounts
63 ...
Yieldmo

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

Ad Exchange
unique domains
1.2 mm+ domains detected
1,280 declared customers sellers.json
63,717 claimed customers ads.txt
GDPR Vendor ID
42% Reseller Accounts
58% Direct Accounts
64 ...
Centro Brand Exchange

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

Ad Exchange
unique domains
1.2 mm+ domains detected
0 declared customers sellers.json
65 ...
StackAdapt

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

Ad Network
13  unique domains
1.1 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
66 ...
PulsePoint

Revolutionizing Health Decision-Making For Health Consumers & Healthcare Providers.

Ad Exchange
unique domains
1.1 mm+ domains detected
321 declared customers sellers.json
8,549 claimed customers ads.txt
GDPR Vendor ID
57% Reseller Accounts
43% Direct Accounts
67 ...
Drawbridge

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

Buying System
unique domains
1.1 mm+ domains detected
0 declared customers sellers.json
1 claimed customers ads.txt
0% Reseller Accounts
100% Direct Accounts
68 ...
RTB House

Technology Powered by Deep Learning

22  unique domains
1.1 mm+ domains detected
0 declared customers sellers.json
16,167 claimed customers ads.txt
GDPR Vendor ID
26% Reseller Accounts
74% Direct Accounts
69 ...
DoubleVerify

Verification Service
216  unique domains
1.1 mm+ domains detected
GDPR Vendor ID
70 ...
jsdelivr

Content Delivery Network
unique domains
1.1 mm+ domains detected
GDPR Vendor ID
71 ...
Zemanta

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

Buying System
14  unique domains
1.1 mm+ domains detected
0 declared customers sellers.json
33 claimed customers ads.txt
GDPR Vendor ID
97% Reseller Accounts
3% Direct Accounts
72 ...
Shopify

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

Buying System
15  unique domains
1.1 mm+ domains detected
0 declared customers sellers.json
73 ...
AcuityAds

AcuityAds is a technology company that enables marketers to connect intelligently with the most meaningful audiences through digital media.

Ad Network
13  unique domains
1.1 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
74 ...
Klaviyo

Customer Data Platform
unique domains
1 mm+ domains detected
75 ...
AdTheorent

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

unique domains
1 mm+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
76 ...
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
1 mm+ domains detected
363 declared customers sellers.json
55,836 claimed customers ads.txt
64% Reseller Accounts
36% Direct Accounts
77 ...
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
1 mm+ domains detected
363 declared customers sellers.json
55,836 claimed customers ads.txt
64% Reseller Accounts
36% Direct Accounts
78 ...
Adelphic

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

Identity Provider
unique domains
1 mm+ domains detected
0 declared customers sellers.json
79 ...
EMX digital

EMX Digital is a digital advertising marketplace.

Ad Network
unique domains
980,000+ domains detected
1,751 declared customers sellers.json
41 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
0% Direct Accounts
80 ...
Font Awesome

Content Delivery Network
11  unique domains
980,000+ domains detected
81 ...
Unruly

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

Ad Network
11  unique domains
970,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
82 ...
OwnerIQ

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

Buying System
unique domains
970,000+ domains detected
0 declared customers sellers.json
83 ...
DeepIntent

Ad Network
unique domains
960,000+ domains detected
0 declared customers sellers.json
5,267 claimed customers ads.txt
GDPR Vendor ID
12% Reseller Accounts
88% Direct Accounts
84 ...
sovrn

Ad Network
33  unique domains
920,000+ domains detected
6,015 declared customers sellers.json
100,312 claimed customers ads.txt
GDPR Vendor ID
43% Reseller Accounts
57% Direct Accounts
85 ...
Teads

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

Ad Network
17  unique domains
900,000+ domains detected
3,702 declared customers sellers.json
67,107 claimed customers ads.txt
GDPR Vendor ID
41% Reseller Accounts
59% Direct Accounts
86 ...
Xaxis

Ad Network
unique domains
890,000+ domains detected
87 ...
Sonobi

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

Ad Exchange
16  unique domains
890,000+ domains detected
649 declared customers sellers.json
72,481 claimed customers ads.txt
GDPR Vendor ID
52% Reseller Accounts
48% Direct Accounts
88 ...
Skimlinks

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

Ad Network
unique domains
880,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
89 ...
Adgear

AdGear Technologies, Inc. is a digital advertising technology company, providing software and services to advertisers and publishers.

unique domains
850,000+ domains detected
0 declared customers sellers.json
134 claimed customers ads.txt
GDPR Vendor ID
100% Reseller Accounts
0% Direct Accounts
90
OneTag

Ad Network
unique domains
830,000+ domains detected
45,017 declared customers sellers.json
69,242 claimed customers ads.txt
65 CMP ID
65 GDPR Vendor ID
53% Reseller Accounts
47% Direct Accounts
91 ...
Vimeo

Walled Garden
12  unique domains
820,000+ domains detected
92 ...
jQuery

Content Delivery Network
unique domains
810,000+ domains detected
93 ...
SpotX

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

Ad Exchange
unique domains
780,000+ domains detected
1,017 declared customers sellers.json
90,484 claimed customers ads.txt
GDPR Vendor ID
62% Reseller Accounts
38% Direct Accounts
94 ...
OneSignal

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

Publisher Tools + Analytics
182  unique domains
760,000+ domains detected
0 declared customers sellers.json
95 ...
ShareThis

Ad Network
23  unique domains
750,000+ domains detected
0 declared customers sellers.json
GDPR Vendor ID
96 ...
Bidtellect

Bidtellect is the leading buy side Native platform built for marketers.

Buying System
unique domains
740,000+ domains detected
0 declared customers sellers.json
25,734 claimed customers ads.txt
GDPR Vendor ID
99% Reseller Accounts
1% Direct Accounts
97 ...
OnAudience

Ad Exchange
unique domains
720,000+ domains detected
GDPR Vendor ID
98 ...
Cognitiv

Buyer Tools + Analytics
unique domains
690,000+ domains detected
99 ...
InMobi

Ad Network
unique domains
670,000+ domains detected
2,954 declared customers sellers.json
32,146 claimed customers ads.txt
GDPR Vendor ID
74% Reseller Accounts
26% Direct Accounts
100 ...
Engage

Ad Network
unique domains
650,000+ domains detected
334 declared customers sellers.json
30,494 claimed customers ads.txt
89% Reseller Accounts
11% Direct Accounts