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.

uidevelopers1.blogspot.com app-ads.txt check

uidevelopers1.blogspot.com is missing out on higher CPMs: its app-ads.txt lists only 8 of the 38 lines its 3 ad networks expect (79% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 21 Oct 2026. 11 lines, 9 unique records, 0 duplicates, 0 invalid lines, 3 ad networks detected.

Ad networks in uidevelopers1.blogspot.com/app-ads.txt

Google AdMob — account pub-1419941965030993: 1 line in the file
Meta Audience Network — account 978902489761382: 1 line in the file
AppLovin — account 54aaa93dfd7c88c05cc44304c7d45707: 6 lines in the file, 30 expected lines missing

Corrected file: uidevelopers1.blogspot.com app-ads.txt (fixed).

FAQ

Does uidevelopers1.blogspot.com have an app-ads.txt?

Yes — https://uidevelopers1.blogspot.com/app-ads.txt has 11 lines (checked 21 Oct 2026).

Which ad networks does uidevelopers1.blogspot.com work with?

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

uidevelopers1.blogspot.com app-ads.txt check

Ad networks in uidevelopers1.blogspot.com/app-ads.txt

FAQ

Does uidevelopers1.blogspot.com have an app-ads.txt?

Which ad networks does uidevelopers1.blogspot.com work with?

Is the app-ads.txt of uidevelopers1.blogspot.com correct?

Other checked domains

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