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.

tyt.com app-ads.txt check

tyt.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. 421 lines, 416 unique records, 2 duplicates, 1 invalid lines, 14 ad networks detected.

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

PubMatic — accounts 162307, 164671: 2 lines in the file
Google AdMob — account pub-8163703492351455: 1 line in the file
OpenX — account 564021514: 1 line in the file
Mintegral — partner (reseller) lines only: 41 lines in the file, 400 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 14 lines in the file, 376 expected lines missing
Chartboost — partner (reseller) lines only: 34 lines in the file, 400 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 14 lines in the file, 400 expected lines missing
BIGO Ads — partner (reseller) lines only: 19 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 74 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 26 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 18 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 40 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 36 lines in the file, 333 expected lines missing
Bidmachine — partner (reseller) lines only: 41 lines in the file, 400 expected lines missing

Invalid lines

lijit.com, 560797, RESELLER, fafdf38b16bf6b2b SOVRN

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

FAQ

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

Yes — https://tyt.com/app-ads.txt has 421 lines (checked 20 Oct 2026).

Which ad networks does tyt.com work with?

Its app-ads.txt lists PubMatic, Google AdMob, OpenX, Mintegral, Liftoff Monetize (Vungle), Chartboost, DT Exchange (Fyber), BIGO Ads, Yango Ads, DSP Exchange, Maticoo (zMaticoo), Verve (PubNative) and 2 more.

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