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.

tellmewow.com app-ads.txt check

tellmewow.com is missing out on higher CPMs: its app-ads.txt has 2 invalid lines. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 5,947 lines, 4,307 unique records, 1,325 duplicates, 2 invalid lines, 36 ad networks detected.

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

Google AdMob — accounts pub-8143212237299826, pub-5812357352335075, pub-7152441034374786: 3 lines in the file
AppLovin — account 312a0640adf6e529e115713d8b75cb5e: 36 lines in the file
Meta Audience Network — accounts 1239825396091188, 1850977668889435: 2 lines in the file
Liftoff Monetize (Vungle) — accounts 5fd9e1e085c0a0000fb47f1e, 5f3d310a8421a5001528b750: 387 lines in the file, 5 expected lines missing
InMobi — account 61f3d585db6d454f82c29ab07cce5dd5: 255 lines in the file, 17 expected lines missing
Magnite (Rubicon) — accounts 12556, 18110, 27232: 3 lines in the file
PubMatic — accounts 158326, 159344, 166946: 3 lines in the file
Mintegral — account 40171: 400 lines in the file
Chartboost — accounts 5ac61384300eb80b75a2010f, 60196c4bc0d66007ec2cef9a: 400 lines in the file, 68 expected lines missing
Smaato — account 1100057628: 1 line in the file
Amazon Publisher Services — accounts 77c18c2e-1cdb-42a0-9f8c-a4f37817a0fe, d66f8965-e8d8-4296-86b1-fde3ee7c1b74: 2 lines in the file
ironSource / LevelPlay — account 117339: 108 lines in the file, 18 expected lines missing
Unity Ads — account 1426946: 161 lines in the file
Index Exchange — account 587993: 1 line in the file
TripleLift — accounts 3222, 6616: 2 lines in the file
Sovrn — account 230297: 1 line in the file
DT Exchange (Fyber) — account 220273: 396 lines in the file, 55 expected lines missing
TikTok Ad Network (Pangle) — account 5003394: 1 line in the file
Bidmachine — account 1822: 400 lines in the file, 73 expected lines missing
Yandex Ads — partner (reseller) lines only: 137 lines in the file, 31 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 78 lines in the file, 66 expected lines missing
BIGO Ads — partner (reseller) lines only: 400 lines in the file, 303 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 36 lines in the file, 13 expected lines missing
BlueSea — partner (reseller) lines only: 22 lines in the file, 15 expected lines missing
Display.io — partner (reseller) lines only: 12 lines in the file, 20 expected lines missing
DSP Exchange — partner (reseller) lines only: 266 lines in the file, 295 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 260 lines in the file, 184 expected lines missing
Monetrix — partner (reseller) lines only: 59 lines in the file, 34 expected lines missing
Prado — partner (reseller) lines only: 17 lines in the file, 10 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 196 lines in the file, 173 expected lines missing
Start.io — partner (reseller) lines only: 84 lines in the file, 73 expected lines missing
Kidoz — partner (reseller) lines only: 13 lines in the file, 9 expected lines missing
CAS.ai — partner (reseller) lines only: 128 lines in the file, 37 expected lines missing
DSail — partner (reseller) lines only: 128 lines in the file, 37 expected lines missing

Invalid lines

singularads, 548745, RESELLER
smaato.com,0,DIRECT,07bcf65f187117b4

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

FAQ

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

Yes — https://tellmewow.com/app-ads.txt has 5,947 lines (checked 20 Oct 2026).

Which ad networks does tellmewow.com work with?

Its app-ads.txt lists Google AdMob, AppLovin, Meta Audience Network, Liftoff Monetize (Vungle), InMobi, Magnite (Rubicon), PubMatic, Mintegral, Chartboost, Smaato, Amazon Publisher Services, ironSource / LevelPlay and 24 more.

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