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.

24baby.nl app-ads.txt check

24baby.nl achieves the best ad optimization: its app-ads.txt has no errors and matches what its 12 ad networks expect (100% of 26 lines).

Checked 20 Oct 2026. 485 lines, 351 unique records, 45 duplicates, 0 invalid lines, 22 ad networks detected.

Ad networks in 24baby.nl/app-ads.txt

Google AdMob — accounts pub-4816782079100661, pub-9829476400767085: 2 lines in the file
Amazon Publisher Services — account d02f0482-a50f-427c-ac01-9856371f1f6b: 1 line in the file
PubMatic — accounts 160626, 157743, 81564 and 1 more: 4 lines in the file
Sovrn — accounts 276814, 276814-eb: 2 lines in the file
Xandr (Microsoft) — accounts 10112, 2928, 8233 and 1 more: 4 lines in the file
Magnite (Rubicon) — accounts 14940, 17280, 13510 and 1 more: 4 lines in the file
Criteo — account B-062059: 1 line in the file
OpenX — accounts 537149888, 539625136: 2 lines in the file
Smaato — accounts 1100037086, 1100000579: 2 lines in the file
Yahoo — accounts 58578, 59048: 2 lines in the file
Index Exchange — accounts 186156, 191668: 2 lines in the file
TripleLift — account 10838: 1 line in the file
Mintegral — partner (reseller) lines only: 26 lines in the file, 400 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 13 lines in the file, 377 expected lines missing
Chartboost — partner (reseller) lines only: 25 lines in the file, 400 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 11 lines in the file, 400 expected lines missing
BIGO Ads — partner (reseller) lines only: 25 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 51 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 38 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 26 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 19 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 37 lines in the file, 400 expected lines missing

Corrected file: 24baby.nl app-ads.txt (fixed).

FAQ

Does 24baby.nl have an app-ads.txt?

Yes — https://24baby.nl/app-ads.txt has 485 lines (checked 20 Oct 2026).

Which ad networks does 24baby.nl work with?

Its app-ads.txt lists Google AdMob, Amazon Publisher Services, PubMatic, Sovrn, Xandr (Microsoft), Magnite (Rubicon), Criteo, OpenX, Smaato, Yahoo, Index Exchange, TripleLift and 10 more.

Is the app-ads.txt of 24baby.nl correct?