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.

fussball.de app-ads.txt check

fussball.de is missing out on higher CPMs: its app-ads.txt has 4 invalid lines. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 19 Oct 2026. 493 lines, 437 unique records, 22 duplicates, 4 invalid lines, 15 ad networks detected.

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

Mintegral — partner (reseller) lines only: 63 lines in the file, 400 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 24 lines in the file, 366 expected lines missing
Chartboost — partner (reseller) lines only: 40 lines in the file, 400 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 19 lines in the file, 400 expected lines missing
Yandex Ads — partner (reseller) lines only: 14 lines in the file, 154 expected lines missing
BIGO Ads — partner (reseller) lines only: 51 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 114 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 53 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 33 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 33 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 11 lines in the file, 358 expected lines missing
Start.io — partner (reseller) lines only: 11 lines in the file, 146 expected lines missing
CAS.ai — partner (reseller) lines only: 12 lines in the file, 153 expected lines missing
DSail — partner (reseller) lines only: 12 lines in the file, 153 expected lines missing
Bidmachine — partner (reseller) lines only: 81 lines in the file, 400 expected lines missing

Invalid lines

nobid.io,22582753919,RESELLER 33across.com, 0010b00002Mq2FYAAZ, RESELLER, bbea06d9c4d2853c
nobid.io,22582753919,RESELLER smartadserver.com,3447,RESELLER
triplelift.co
themediagrid.com,4FDQYH,RESELLER,35d5010d7789b49 d

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

FAQ

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

Yes — https://fussball.de/app-ads.txt has 493 lines (checked 19 Oct 2026).

Which ad networks does fussball.de work with?

Its app-ads.txt lists Mintegral, Liftoff Monetize (Vungle), Chartboost, DT Exchange (Fyber), Yandex Ads, BIGO Ads, Yango Ads, DSP Exchange, Maticoo (zMaticoo), Verve (PubNative), HyprMX, Start.io and 3 more.

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