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Ads.txt update: Over 66% of the top 5,000 programmatic sites now have ads.txt

This blog series provides a weekly summary highlighting some of the key takeaways as the programmatic industry adopts ads.txt, the IAB-led anti-ad fraud initiative.

Pixalate has also made available for download the full list of publishers with ads.txt implemented, which also gets updated weekly. 

Ads.txt adoption at a glance: Initiative passes 70% adoption among top 1,000 programmatic publishers

Ads.txt adoption reached some new highs this week:

  • Ads.txt adoption surpassed the 70% mark for the first time among the top 1,000 programmatic publishers
  • Another first: Over two-third of the top 5,000 publishers now have ads.txt (66.96%) 
  • Over 129,000 new publishers have implemented ads.txt in March

ads.txt blog image march 26.png

Here are the latest ads.txt adoption figures, as of March 26, 2018.

Nearly 300,000 publishers now have ads.txt

As of March 26, 2018, 298,993 publishers have implemented ads.txt.

This represents an increase of 41,793 compared to last week.

Ads.txt adoption has increased 234% so far in 2018

According to Pixalate’s research, the total number of publishers with ads.txt was 89,638 as of January 1, 2018.

Over 200,000 new publishers have implemented ads.txt since then — representing a rise of about 234% during Q1.

ads.txt blog image march 26 data.png

Pixalate Top 1,000: 70.20% of the top 1,000 programmatic publishers have ads.txt

Of the top 1,000 sites based on programmatic advertising volume (the “Pixalate Top 1,000”), 702 sites have implemented ads.txt — or 70.20%.

This represents an increase of three (3) new publishers since last week.

This number is up from 571 on January 1, representing a year-to-date rise of 22.94%.

Pixalate Top 5,000: 66.96% of the top 5,000 programmatic publishers have ads.txt

Of the top 5,000 sites based on programmatic advertising volume (the “Pixalate Top 5,000”), 3,348 sites have implemented ads.txt — or 66.96%.

This indicates that an additional 111 sites within the Pixalate Top 5,000 implemented ads.txt in the past week.

This number is up from 2,355 on January 1, representing a year-to-date rise of 42.17%.

34.40% of Alexa Top 1,000 sites have ads.txt

As of this writing, 344 Alexa Top 1,000 publishers have implemented ads.txt — or 34.40%.

This number is up from 220 on January 1, representing a year-to-date rise of 56.36%

Last week, Pixalate measured 357 Alexa Top 1,000 publishers as having implemented ads.txt. Publishers can move in and out of these top rankings. 

30.54% of Alexa Top 5,000 sites have ads.txt

As of this writing, 1,527 Alexa Top 5,000 publishers have implemented ads.txt — or 30.54%. 

This number is up from 1,013 on January 1, representing a year-to-date rise of 50.74%.

Last week, Pixalate measured 1,544 Alexa Top 5,000 publishers as having implemented ads.txt. Publishers can move in and out of these top rankings. 

Download the full list of publishers with ads.txt

You can download the full list of publishers with ads.txt here:

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