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.

37games.com app-ads.txt check

37games.com achieves the best ad optimization: its app-ads.txt has no errors and matches what its 3 ad networks expect (99% of 362 lines).

Checked 19 Oct 2026. 368 lines, 368 unique records, 0 duplicates, 0 invalid lines, 23 ad networks detected.

Ad networks in 37games.com/app-ads.txt

Google AdMob — accounts pub-6027287696056611, pub-8528425140991332, pub-2007948860532396: 3 lines in the file
Meta Audience Network — accounts 285371916288748, 1898187073554495: 2 lines in the file
Vungle — account 6305cb82cc02d8001addcb2b: 358 lines in the file, 2 expected lines missing
AppLovin — partner (reseller) lines only: 13 lines in the file, 22 expected lines missing
Mintegral — partner (reseller) lines only: 156 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 25 lines in the file, 135 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 27 lines in the file, 98 expected lines missing
Chartboost — partner (reseller) lines only: 146 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 38 lines in the file, 233 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 114 lines in the file, 336 expected lines missing
Yandex Ads — partner (reseller) lines only: 42 lines in the file, 126 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 33 lines in the file, 111 expected lines missing
BIGO Ads — partner (reseller) lines only: 93 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 360 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 54 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 38 lines in the file, 400 expected lines missing
Monetrix — partner (reseller) lines only: 11 lines in the file, 82 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 122 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 26 lines in the file, 343 expected lines missing
Start.io — partner (reseller) lines only: 13 lines in the file, 144 expected lines missing
CAS.ai — partner (reseller) lines only: 38 lines in the file, 127 expected lines missing
DSail — partner (reseller) lines only: 38 lines in the file, 127 expected lines missing
Bidmachine — partner (reseller) lines only: 184 lines in the file, 400 expected lines missing

Corrected file: 37games.com app-ads.txt (fixed).

FAQ

Does 37games.com have an app-ads.txt?

Yes — https://37games.com/app-ads.txt has 368 lines (checked 19 Oct 2026).

Which ad networks does 37games.com work with?

Its app-ads.txt lists Google AdMob, Meta Audience Network, Vungle, AppLovin, Mintegral, Unity Ads, ironSource / LevelPlay, Chartboost, InMobi, DT Exchange (Fyber), Yandex Ads, VK Ads (myTarget) and 11 more.

Is the app-ads.txt of 37games.com correct?