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.

laposte.net app-ads.txt check

laposte.net achieves the best ad optimization: its app-ads.txt has no errors and matches what its 2 ad networks expect (100% of 2 lines).

Checked 21 Oct 2026. 303 lines, 269 unique records, 2 duplicates, 0 invalid lines, 20 ad networks detected.

Ad networks in laposte.net/app-ads.txt

Amazon Publisher Services — account 47b3bdce-3a0c-491e-b9d2-91d4e72a5385: 1 line in the file
PubMatic — account 165901: 1 line in the file
Mintegral — partner (reseller) lines only: 60 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 12 lines in the file, 148 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 17 lines in the file, 108 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 46 lines in the file, 344 expected lines missing
Chartboost — partner (reseller) lines only: 67 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 23 lines in the file, 248 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 30 lines in the file, 400 expected lines missing
Yandex Ads — partner (reseller) lines only: 22 lines in the file, 146 expected lines missing
BIGO Ads — partner (reseller) lines only: 70 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 127 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 58 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 25 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 48 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 16 lines in the file, 353 expected lines missing
Start.io — partner (reseller) lines only: 11 lines in the file, 146 expected lines missing
CAS.ai — partner (reseller) lines only: 22 lines in the file, 143 expected lines missing
DSail — partner (reseller) lines only: 22 lines in the file, 143 expected lines missing
Bidmachine — partner (reseller) lines only: 125 lines in the file, 400 expected lines missing

Corrected file: laposte.net app-ads.txt (fixed).

FAQ

Does laposte.net have an app-ads.txt?

Yes — https://laposte.net/app-ads.txt has 303 lines (checked 21 Oct 2026).

Which ad networks does laposte.net work with?

Its app-ads.txt lists Amazon Publisher Services, PubMatic, Mintegral, Unity Ads, ironSource / LevelPlay, Liftoff Monetize (Vungle), Chartboost, InMobi, DT Exchange (Fyber), Yandex Ads, BIGO Ads, Yango Ads and 8 more.

Is the app-ads.txt of laposte.net correct?