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.

grandginrummy.com app-ads.txt check

grandginrummy.com is missing out on higher CPMs: its app-ads.txt has 1 invalid line. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 848 lines, 715 unique records, 132 duplicates, 1 invalid lines, 25 ad networks detected.

Ad networks in grandginrummy.com/app-ads.txt

Google AdMob — account pub-4069893349437738: 1 line in the file
Meta Audience Network — account 10152578117610844: 1 line in the file
DT Exchange (Fyber) — account 234801: 395 lines in the file, 56 expected lines missing
Vungle — account 65cb5af6a3d8e1001191d9d7: 358 lines in the file, 2 expected lines missing
AppLovin — account c2bc2fa63bdaa8db23dae444a1d93255: 36 lines in the file
Mintegral — partner (reseller) lines only: 224 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 50 lines in the file, 110 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 46 lines in the file, 79 expected lines missing
Chartboost — partner (reseller) lines only: 196 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 73 lines in the file, 198 expected lines missing
Yandex Ads — partner (reseller) lines only: 72 lines in the file, 96 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 42 lines in the file, 102 expected lines missing
BIGO Ads — partner (reseller) lines only: 175 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 19 lines in the file, 30 expected lines missing
BlueSea — partner (reseller) lines only: 9 lines in the file, 28 expected lines missing
DSP Exchange — partner (reseller) lines only: 77 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 84 lines in the file, 360 expected lines missing
Monetrix — partner (reseller) lines only: 20 lines in the file, 73 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 241 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 63 lines in the file, 306 expected lines missing
Start.io — partner (reseller) lines only: 29 lines in the file, 128 expected lines missing
CAS.ai — partner (reseller) lines only: 63 lines in the file, 102 expected lines missing
DSail — partner (reseller) lines only: 63 lines in the file, 102 expected lines missing
Bidmachine — partner (reseller) lines only: 324 lines in the file, 400 expected lines missing

Invalid lines

Liftoff/Vungle

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

FAQ

Does grandginrummy.com have an app-ads.txt?

Yes — https://grandginrummy.com/app-ads.txt has 848 lines (checked 20 Oct 2026).

Which ad networks does grandginrummy.com work with?

Its app-ads.txt lists Google AdMob, Meta Audience Network, DT Exchange (Fyber), Vungle, AppLovin, Mintegral, Unity Ads, ironSource / LevelPlay, Chartboost, InMobi, Yandex Ads, VK Ads (myTarget) and 13 more.

Is the app-ads.txt of grandginrummy.com correct?