Ads.txt Usage

Statistics for websites using Ads.txt technologies

Ads.txt
Google Direct
AppNexus Reseller
OpenX Reseller
SpotXChange Reseller
Google Reseller
RubiconProject Reseller
PubMatic Reseller
ContextWeb Reseller
AOL Reseller

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Name 10k 100k Million Entire Web
Ads.txt 2,416 11,851 45,267 945,027
Google Direct 2,266 11,040 41,019 856,343
AppNexus Reseller 2,011 9,408 27,135 566,490
OpenX Reseller 1,891 8,971 23,755 495,927
Google Reseller 1,799 7,987 26,098 544,841
SpotXChange Reseller 1,690 8,098 21,176 442,085
RubiconProject Reseller 1,665 7,381 21,737 453,797
IndexExchange Reseller 1,663 7,083 19,426 405,551
AOL Reseller 1,643 7,180 19,508 407,263
PubMatic Reseller 1,611 7,236 20,295 423,693

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Ads.txt is the IAB's method of increasing transparency in the programmatic advertising space. A file called ads.txt is added to the website which lists the authorized digital sellers for the website where the file is found.