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.

weather.difer.net app-ads.txt check

weather.difer.net is almost fully optimized: its app-ads.txt has no errors and matches 99.4% of the 383 lines its 2 ad networks expect — minor optimisation required: 2 lines are missing.

Checked 23 Oct 2026. 408 lines, 387 unique records, 15 duplicates, 0 invalid lines, 21 ad networks detected.

Ad networks in weather.difer.net/app-ads.txt

AppLovin — account cbc03a43a5417d4222bb6ab9c40f134b: 36 lines in the file
Vungle — account 672ca84882eecb0011c370d4: 358 lines in the file, 2 expected lines missing
Mintegral — partner (reseller) lines only: 157 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: 149 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 39 lines in the file, 232 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 117 lines in the file, 333 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: 34 lines in the file, 110 expected lines missing
BIGO Ads — partner (reseller) lines only: 95 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 382 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 55 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: 124 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 28 lines in the file, 341 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: 189 lines in the file, 400 expected lines missing

Corrected file: weather.difer.net app-ads.txt (fixed).

FAQ

Does weather.difer.net have an app-ads.txt?

Yes — https://weather.difer.net/app-ads.txt has 408 lines (checked 23 Oct 2026).

Which ad networks does weather.difer.net work with?

Its app-ads.txt lists AppLovin, Vungle, Mintegral, Unity Ads, ironSource / LevelPlay, Chartboost, InMobi, DT Exchange (Fyber), Yandex Ads, VK Ads (myTarget), BIGO Ads, Yango Ads and 9 more.

Is the app-ads.txt of weather.difer.net correct?