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.

eatsmarter.de app-ads.txt check

eatsmarter.de achieves the best ad optimization: its app-ads.txt has no errors and matches what its 8 ad networks expect (100% of 14 lines).

Checked 19 Oct 2026. 229 lines, 159 unique records, 27 duplicates, 0 invalid lines, 13 ad networks detected.

Ad networks in eatsmarter.de/app-ads.txt

Google AdMob — accounts pub-7009328784913632, pub-8486036634842833: 2 lines in the file
Index Exchange — accounts 186836, 189231: 2 lines in the file
Sovrn — accounts 257392, 257392-eb, 263262: 3 lines in the file
OpenX — accounts 537148817, 540269345, 540447742: 3 lines in the file
Magnite (Rubicon) — accounts 19328, 19912: 2 lines in the file
Amazon Publisher Services — account 3606: 1 line in the file
Xandr (Microsoft) — account 11681: 1 line in the file
Criteo — account B-060372: 1 line in the file
Mintegral — partner (reseller) lines only: 26 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 34 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 30 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 11 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 31 lines in the file, 400 expected lines missing

Corrected file: eatsmarter.de app-ads.txt (fixed).

FAQ

Does eatsmarter.de have an app-ads.txt?

Yes — https://eatsmarter.de/app-ads.txt has 229 lines (checked 19 Oct 2026).

Which ad networks does eatsmarter.de work with?

Its app-ads.txt lists Google AdMob, Index Exchange, Sovrn, OpenX, Magnite (Rubicon), Amazon Publisher Services, Xandr (Microsoft), Criteo, Mintegral, Yango Ads, DSP Exchange, Maticoo (zMaticoo) and 1 more.

Is the app-ads.txt of eatsmarter.de correct?