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.

playtestpro.com app-ads.txt check

playtestpro.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 22 Oct 2026. 8,442 lines, 8,428 unique records, 8 duplicates, 1 invalid lines, 41 ad networks detected.

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

Smaato — accounts 1100055850, 1100005936, 1100055934 and 3 more: 6 lines in the file
AppLovin — account c6c931d19d1f37ecdda4c00f2a429348: 36 lines in the file
Xandr (Microsoft) — accounts 12039, 13356, 7351 and 3 more: 6 lines in the file
Amazon Publisher Services — accounts 04ac5b29-af8f-4cbb-acb2-8f375510b650, 8ad2aae8-3f86-43e5-ba8d-47d42f48959d: 2 lines in the file
Bidmachine — account 340: 400 lines in the file, 96 expected lines missing
Chartboost — account 664e0a7bea169a847796b8c1: 400 lines in the file, 44 expected lines missing
Criteo — account SWH94X: 1 line in the file
Meta Audience Network — accounts 1084593845903542, 773983528423821, 1100930387682224 and 15 more: 18 lines in the file
DT Exchange (Fyber) — account 215465: 400 lines in the file
Google AdMob — accounts pub-2085247160344713, pub-2233829666677759, pub-3032511519363854 and 10 more: 13 lines in the file
Index Exchange — accounts 192585, 205985: 2 lines in the file
InMobi — accounts 0c5a288c5bc842bbac20f6cd0ddb0098, 12a9a79d60214a40a444a6103b81747c, 5a55dcf1df4e474fa378857ead547871 and 5 more: 243 lines in the file, 36 expected lines missing
ironSource / LevelPlay — account 369359: 118 lines in the file, 8 expected lines missing
Sovrn — accounts 224984, 411915, 563477 and 7 more: 10 lines in the file
Mintegral — accounts 28655, 28703: 400 lines in the file, 20 expected lines missing
MobileFuse — account 4418: 1 line in the file
OpenX — accounts 540861995, 559912325, 561052893 and 2 more: 5 lines in the file
PubMatic — accounts 132830, 159856, 162319 and 5 more: 8 lines in the file
Verve (PubNative) — accounts 1008175, 1008330, 1008376 and 3 more: 400 lines in the file, 9 expected lines missing
Magnite (Rubicon) — accounts 10653, 166535, 18516 and 7 more: 10 lines in the file
Start.io — accounts 132075565, 117514417: 153 lines in the file, 6 expected lines missing
TripleLift — accounts 8446, 6998, 14146: 3 lines in the file
Unity Ads — account 2576625: 148 lines in the file, 13 expected lines missing
Liftoff Monetize (Vungle) — accounts 6184fc6ea3ed3f0017cdc366, 64803209bfd9aa0011593484: 365 lines in the file, 27 expected lines missing
Maticoo (zMaticoo) — accounts 114122, 114490, 5135063 and 1 more: 400 lines in the file, 18 expected lines missing
BIGO Ads — accounts 1111538, 23173231: 400 lines in the file, 56 expected lines missing
Ogury — account 69bc86b2-3711-4d28-95f3-3465ba6d7aae: 11 lines in the file, 7 expected lines missing
CAS.ai — accounts b5a73ae1, babe9c54: 151 lines in the file, 14 expected lines missing
Monetrix — accounts 161, 166: 71 lines in the file, 24 expected lines missing
BlueSea — account 204037: 26 lines in the file, 12 expected lines missing
Yandex Ads — partner (reseller) lines only: 153 lines in the file, 15 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 109 lines in the file, 35 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 43 lines in the file, 6 expected lines missing
Display.io — partner (reseller) lines only: 12 lines in the file, 20 expected lines missing
DSP Exchange — partner (reseller) lines only: 400 lines in the file, 127 expected lines missing
Madex — partner (reseller) lines only: 10 lines in the file, 8 expected lines missing
Prado — partner (reseller) lines only: 23 lines in the file, 4 expected lines missing
HyprMX — partner (reseller) lines only: 292 lines in the file, 77 expected lines missing
Kidoz — partner (reseller) lines only: 19 lines in the file, 3 expected lines missing
DSail — partner (reseller) lines only: 151 lines in the file, 14 expected lines missing

Invalid lines

google.com, undefined, DIRECT, f08c47fec0942fa0

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

FAQ

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

Yes — https://playtestpro.com/app-ads.txt has 8,442 lines (checked 22 Oct 2026).

Which ad networks does playtestpro.com work with?

Its app-ads.txt lists Smaato, AppLovin, Xandr (Microsoft), Amazon Publisher Services, Bidmachine, Chartboost, Criteo, Meta Audience Network, DT Exchange (Fyber), Google AdMob, Index Exchange, InMobi and 29 more.

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