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.

kakaocorp.com app-ads.txt check

kakaocorp.com 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. 122 lines, 100 unique records, 0 duplicates, 4 invalid lines, 12 ad networks detected.

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

Mintegral — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 19 lines in the file, 371 expected lines missing
Chartboost — partner (reseller) lines only: 30 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 24 lines in the file, 247 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 15 lines in the file, 400 expected lines missing
Yandex Ads — partner (reseller) lines only: 12 lines in the file, 156 expected lines missing
BIGO Ads — partner (reseller) lines only: 24 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 59 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 20 lines in the file, 400 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: 38 lines in the file, 400 expected lines missing

Invalid lines

taurusx.com, 80066
supply.colossusssp.com, 856
xandr.com, 10490
yieldmo.com, 3078438591206989879

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

FAQ

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

Yes — https://kakaocorp.com/app-ads.txt has 122 lines (checked 19 Oct 2026).

Which ad networks does kakaocorp.com work with?

Its app-ads.txt lists Mintegral, Liftoff Monetize (Vungle), Chartboost, InMobi, DT Exchange (Fyber), Yandex Ads, BIGO Ads, Yango Ads, DSP Exchange, CAS.ai, DSail, Bidmachine.

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