Ads.txt Adoption Statistics

Who's using ads.txt?

881.2K
Publishers with ads.txt
2.96K
Authorized Ad Exchanges
60.4M
Total Records
28.9%
% of top 5k domains with ads.txt

These are summary statistics on publisher adoption of the ads.txt standard.

Below that are statistics about the ad publishers listed on each ads.txt file across the web.

Percentage of Top Sites with ads.txt Updated 6 months ago
Top SitesCountPercent with ads.txt
100 29 29%
500 150 30%
1,000 292 29.2%
5,000 1,446 28.9%
10,000 2,668 26.6%
50,000 10,179 20.3%
100,000 17,381 17.3%
500,000 56,937 11.3%
1,000,000 91,557 9.1%
#Ad ExchangePublishersMarket Coverage
1google.com849,42896.4 %
2appnexus.com266,57230.25 %
3rubiconproject.com265,49530.13 %
4pubmatic.com264,20829.98 %
5openx.com260,07529.51 %
6indexexchange.com251,49828.54 %
7advertising.com240,86427.33 %
8contextweb.com239,91527.22 %
9spotxchange.com239,50627.18 %
10spotx.tv239,17127.14 %