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.

apps-fun-lab.web.app app-ads.txt check

apps-fun-lab.web.app is missing out on higher CPMs: its app-ads.txt has 9 invalid lines. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 7,400 lines, 6,905 unique records, 486 duplicates, 9 invalid lines, 38 ad networks detected.

Ad networks in apps-fun-lab.web.app/app-ads.txt

AppLovin — account bc9f6759bc1fa7ab9a05ce540aa87dab: 36 lines in the file
Xandr (Microsoft) — accounts 10815, 12616, 15686 and 1 more: 4 lines in the file
Amazon Publisher Services — accounts 42df5c79-9a6a-4118-b46f-dd311cf16fb8, acdfde92-e393-45ef-9e98-6bbabfe10a92: 2 lines in the file
Bidmachine — accounts 416-1, 416, 816: 400 lines in the file
BlueSea — account 204037: 26 lines in the file, 12 expected lines missing
CAS.ai — accounts b5a73ae1, babe9c54: 138 lines in the file, 27 expected lines missing
Chartboost — account 52ffad5617ba47bc1a000018: 400 lines in the file, 1 expected line missing
DT Exchange (Fyber) — account 210527: 400 lines in the file
Google AdMob — accounts pub-2085247160344713, pub-2233829666677759, pub-3130214542525024 and 2 more: 5 lines in the file
Index Exchange — account 192585: 1 line in the file
InMobi — accounts 554cdd64d6cb4d8097a28241988a821e, bfe203493be74a45917b0993b9a74596, ddb41d8a9f434a918d05a0fc9999d9f9: 266 lines in the file, 8 expected lines missing
ironSource / LevelPlay — account 212327: 126 lines in the file
Sovrn — accounts 323999, 411915, 456186 and 6 more: 9 lines in the file
Mintegral — accounts 12797, 21922, 21924 and 8 more: 400 lines in the file
OpenX — accounts 540861995, 563905670, 564921063 and 1 more: 4 lines in the file
TikTok Ad Network (Pangle) — account 5013926: 1 line in the file
PubMatic — accounts 165874, 166835, 95054: 3 lines in the file
Verve (PubNative) — account 1009991: 400 lines in the file, 400 expected lines missing
Magnite (Rubicon) — accounts 166535, 25512, 26980 and 1 more: 4 lines in the file
Smaato — accounts 1100001164, 1100057546, 1100057628: 3 lines in the file
Start.io — accounts 117514417, 179510621: 99 lines in the file, 60 expected lines missing
TripleLift — accounts 14146, 6998: 2 lines in the file
Unity Ads — account 31815: 161 lines in the file
Liftoff Monetize (Vungle) — account 561e8d976b8d90f61a003bab: 391 lines in the file
Maticoo (zMaticoo) — accounts 114490, 5135063: 297 lines in the file, 149 expected lines missing
Yandex Ads — partner (reseller) lines only: 145 lines in the file, 23 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 101 lines in the file, 43 expected lines missing
BIGO Ads — partner (reseller) lines only: 400 lines in the file, 214 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 40 lines in the file, 9 expected lines missing
Display.io — partner (reseller) lines only: 12 lines in the file, 20 expected lines missing
DSP Exchange — partner (reseller) lines only: 371 lines in the file, 190 expected lines missing
Madex — partner (reseller) lines only: 8 lines in the file, 10 expected lines missing
Monetrix — partner (reseller) lines only: 65 lines in the file, 28 expected lines missing
Prado — partner (reseller) lines only: 22 lines in the file, 5 expected lines missing
HyprMX — partner (reseller) lines only: 252 lines in the file, 117 expected lines missing
Kidoz — partner (reseller) lines only: 18 lines in the file, 4 expected lines missing
DSail — partner (reseller) lines only: 138 lines in the file, 27 expected lines missing

Invalid lines

5529a3d1f59865be, 93308, RESELLER
93308, 93308, RESELLER
admanmedia.com, XXX, RESELLER
adsparc, 986, RESELLER
eliteappgrade, 514554, RESELLER
improvedigital, 2343, RESELLER
lemmatechnologies, 1844, RESELLER
singularads, 548745, RESELLER
singularads, 895023, RESELLER

Corrected file: apps-fun-lab.web.app app-ads.txt (fixed).

FAQ

Does apps-fun-lab.web.app have an app-ads.txt?

Yes — https://apps-fun-lab.web.app/app-ads.txt has 7,400 lines (checked 20 Oct 2026).

Which ad networks does apps-fun-lab.web.app work with?

Its app-ads.txt lists AppLovin, Xandr (Microsoft), Amazon Publisher Services, Bidmachine, BlueSea, CAS.ai, Chartboost, DT Exchange (Fyber), Google AdMob, Index Exchange, InMobi, ironSource / LevelPlay and 26 more.

Is the app-ads.txt of apps-fun-lab.web.app correct?