An IAB Tech Lab standard that lets app publishers declare which ad networks are authorized to sell their inventory.

Where do I put the app-ads.txt file?

At the root of the developer website listed in your App Store / Google Play page, e.g. https://studio.com/app-ads.txt.

What is a Certification Authority ID?

An optional TAG-ID of the ad system, the 4th field of an app-ads.txt record.

newhopestudio.org app-ads.txt check

newhopestudio.org is missing out on higher CPMs: its app-ads.txt has 1 invalid line. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 16 lines, 12 unique records, 1 duplicates, 1 invalid lines, 2 ad networks detected.

Ad networks in newhopestudio.org/app-ads.txt

Google AdMob — accounts pub-2890616027208045, pub-4222867367265870, pub-7674588162592391 and 8 more: 11 lines in the file
Meta Audience Network — account 1721995935760976: 1 line in the file

Invalid lines

//////////////////////faceook

Corrected file: newhopestudio.org app-ads.txt (fixed).

FAQ

Does newhopestudio.org have an app-ads.txt?

Yes — https://newhopestudio.org/app-ads.txt has 16 lines (checked 20 Oct 2026).

Which ad networks does newhopestudio.org work with?

Its app-ads.txt lists Google AdMob, Meta Audience Network.

Is the app-ads.txt of newhopestudio.org correct?