Authorized Ad Exchanges Index
Currently tracking 1,424 authorized ad exchanges
We index and track 1,424 unique ad networks authorized by publishers across the web. Publishers authorize these ad networks by listing the ad domain in the publisher's ads.txt file. What is ads.txt?
Domains listed below are the canonical domain name of the SSP, exchange, header wrapper, or other advertising system that bidders connect to in a real-time bidding system.
You can browse the list of ad exchanges below or download the complete ads.txt aggregate file and analyze the data yourself.
Authorized Ad Exchanges
Results 1 to 50 of 1,424
| # | Ad Exchange | Unique Publishers | Market Coverage |
|---|---|---|---|
| 1 | google.com | 194,213 | 97.97% |
| 2 | appnexus.com | 116,640 | 58.84% |
| 3 | rubiconproject.com | 115,159 | 58.09% |
| 4 | pubmatic.com | 112,769 | 56.89% |
| 5 | openx.com | 110,414 | 55.7% |
| 6 | indexexchange.com | 107,086 | 54.02% |
| 7 | contextweb.com | 98,719 | 49.8% |
| 8 | advertising.com | 98,220 | 49.55% |
| 9 | adtech.com | 92,889 | 46.86% |
| 10 | freewheel.tv | 91,642 | 46.23% |
| 11 | spotxchange.com | 81,609 | 41.17% |
| 12 | spotx.tv | 80,644 | 40.68% |
| 13 | districtm.io | 80,350 | 40.53% |
| 14 | aolcloud.net | 78,828 | 39.77% |
| 15 | gumgum.com | 76,316 | 38.5% |
| 16 | rhythmone.com | 76,289 | 38.49% |
| 17 | emxdgt.com | 75,635 | 38.16% |
| 18 | sovrn.com | 74,431 | 37.55% |
| 19 | smartadserver.com | 67,432 | 34.02% |
| 20 | teads.tv | 67,008 | 33.8% |
| 21 | coxmt.com | 66,926 | 33.76% |
| 22 | lkqd.net | 63,723 | 32.15% |
| 23 | lijit.com | 63,309 | 31.94% |
| 24 | 33across.com | 61,489 | 31.02% |
| 25 | criteo.com | 60,576 | 30.56% |
| 26 | tremorhub.com | 60,160 | 30.35% |
| 27 | aps.amazon.com | 58,363 | 29.44% |
| 28 | aol.com | 53,742 | 27.11% |
| 29 | lkqd.com | 53,655 | 27.07% |
| 30 | improvedigital.com | 53,167 | 26.82% |
| 31 | sonobi.com | 51,843 | 26.15% |
| 32 | adform.com | 48,391 | 24.41% |
| 33 | fyber.com | 47,815 | 24.12% |
| 34 | media.net | 47,184 | 23.8% |
| 35 | beachfront.com | 46,199 | 23.31% |
| 36 | adyoulike.com | 41,430 | 20.9% |
| 37 | springserve.com | 38,822 | 19.58% |
| 38 | yldbt.com | 36,564 | 18.45% |
| 39 | conversantmedia.com | 31,926 | 16.11% |
| 40 | taboola.com | 31,112 | 15.69% |
| 41 | admixer.net | 30,297 | 15.28% |
| 42 | smaato.com | 28,460 | 14.36% |
| 43 | outbrain.com | 27,800 | 14.02% |
| 44 | smartclip.net | 26,344 | 13.29% |
| 45 | yahoo.com | 25,319 | 12.77% |
| 46 | video.unrulymedia.com | 23,228 | 11.72% |
| 47 | sekindo.com | 23,051 | 11.63% |
| 48 | triplelift.com | 22,213 | 11.21% |
| 49 | tribalfusion.com | 21,271 | 10.73% |
| 50 | synacor.com | 21,262 | 10.73% |