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.

1kxun.mobi app-ads.txt check

1kxun.mobi 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. 544 lines, 512 unique records, 31 duplicates, 1 invalid lines, 23 ad networks detected.

Ad networks in 1kxun.mobi/app-ads.txt

Google AdMob — accounts pub-8622421155218967, pub-4681714573433168, pub-8371749267191729 and 1 more: 4 lines in the file
Meta Audience Network — account 1129005420572972: 1 line in the file
Vungle — account 561e8d976b8d90f61a0044a5: 360 lines in the file
AppLovin — partner (reseller) lines only: 13 lines in the file, 22 expected lines missing
Mintegral — partner (reseller) lines only: 196 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 27 lines in the file, 133 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 28 lines in the file, 97 expected lines missing
Chartboost — partner (reseller) lines only: 157 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 40 lines in the file, 231 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 115 lines in the file, 335 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: 44 lines in the file, 100 expected lines missing
BIGO Ads — partner (reseller) lines only: 97 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 72 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 40 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: 131 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 29 lines in the file, 340 expected lines missing
Start.io — partner (reseller) lines only: 14 lines in the file, 143 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: 194 lines in the file, 400 expected lines missing

Invalid lines

smartyads.com, 897, fd2bde0ff2e62c5d, RESELLER

Corrected file: 1kxun.mobi app-ads.txt (fixed).

FAQ

Does 1kxun.mobi have an app-ads.txt?

Yes — https://1kxun.mobi/app-ads.txt has 544 lines (checked 20 Oct 2026).

Which ad networks does 1kxun.mobi 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 1kxun.mobi correct?