Ads.txt adoption nears 400,000 publishers

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: Nearly 400,000 publishers now have ads.txt

Ads.txt adoption reached several new highs this week:

• Ads.txt adoption climbed to 71% among the top 5,000 programmatic publishers
• Adoption among the top 1,000 programmatic publishers also reached a new high (73.5%)
• Over 50,000 new publishers implemented ads.txt last week, bringing the total number of publishers with ads.txt to 395,393

Here are the latest ads.txt adoption figures, as of April 9, 2018.

Nearly 400,000 publishers now have ads.txt

As of this writing, 395,393 publishers have implemented ads.txt.

This represents an increase of 53,088 compared to last week.

Ads.txt adoption has increased 341% 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 300,000 new publishers have implemented ads.txt since then — representing a rise of about 341%.

Pixalate Top 1,000: 73.50% 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”), 735 sites have implemented ads.txt — or 73.50%.

This represents an increase of 10 new publishers since last week.

This number is up from 571 on January 1, representing a year-to-date rise of 28.72%.

Pixalate Top 5,000: 71% 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”), 3,550 sites have implemented ads.txt — or 71%.

This indicates that an additional 83 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 50.74%.

36% of Alexa Top 1,000 sites have ads.txt

As of this writing, 360 Alexa Top 1,000 publishers have implemented ads.txt — or 36%.

This number is up from 220 on January 1, representing a year-to-date rise of 63.64%

Last week, Pixalate measured 350 Alexa Top 1,000 publishers as having implemented ads.txt. Publishers can move in and out of these top rankings. 

32.08% of Alexa Top 5,000 sites have ads.txt

As of this writing, 1,604 Alexa Top 5,000 publishers have implemented ads.txt — or 32.08%. 

This number is up from 1,013 on January 1, representing a year-to-date rise of 58.34%.

Last week, Pixalate measured 1,567 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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