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.

cardmania.top app-ads.txt check

cardmania.top 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. 6,427 lines, 5,976 unique records, 449 duplicates, 2 invalid lines, 35 ad networks detected.

Ad networks in cardmania.top/app-ads.txt

Google AdMob — accounts pub-2402956694788689, pub-8335977875725945, pub-8295307411939304: 3 lines in the file
AppLovin — account 810368376134f9b97bf030848ff21485: 36 lines in the file
Meta Audience Network — account 1448235608625998: 1 line in the file
Amazon Publisher Services — account 9447a348-9cbd-497b-900c-8b87ad81f41d: 1 line in the file
Smaato — accounts 1100054121, 1100057628, 1100057546 and 3 more: 6 lines in the file
Bidmachine — accounts 1352, 313-3, 313-7 and 18 more: 400 lines in the file, 196 expected lines missing
Magnite (Rubicon) — account 27498: 1 line in the file
Unity Ads — account 1822454: 161 lines in the file
DT Exchange (Fyber) — account 214473: 400 lines in the file
InMobi — accounts 3f7c557284914326ab0d026c57ca8fc0, cb6a6239dfec478f818c1ffca00ca440: 261 lines in the file, 12 expected lines missing
PubMatic — accounts 164537, 163089: 2 lines in the file
Yango Ads — accounts 98442450, 103343261: 400 lines in the file, 388 expected lines missing
Yandex Ads — accounts 103343261, 98442450: 169 lines in the file, 1 expected line missing
Mintegral — account 24210: 400 lines in the file, 4 expected lines missing
Maticoo (zMaticoo) — accounts 114490, 56301, 84175 and 4 more: 400 lines in the file, 18 expected lines missing
TikTok Ad Network (Pangle) — account 28057: 1 line in the file
Verve (PubNative) — accounts 1008464, 1008320, 1009402 and 1 more: 400 lines in the file, 88 expected lines missing
BIGO Ads — accounts 10111, 10167, 1111913 and 7 more: 400 lines in the file, 19 expected lines missing
Monetrix — account 11039: 70 lines in the file, 24 expected lines missing
Chartboost — account 5bf3da272d72215d58e55e64: 400 lines in the file, 9 expected lines missing
Liftoff Monetize (Vungle) — account 5bd009e27e1105796809759b: 390 lines in the file, 1 expected line missing
VK Ads (myTarget) — account 21961586: 174 lines in the file, 1 expected line missing
ironSource / LevelPlay — account 124053: 125 lines in the file, 1 expected line missing
Ogury — account 7ab9060a-e59a-4c58-b186-5d4af39ccb52: 16 lines in the file, 2 expected lines missing
Bidease — partner (reseller) lines only: 43 lines in the file, 6 expected lines missing
BlueSea — partner (reseller) lines only: 24 lines in the file, 13 expected lines missing
Display.io — partner (reseller) lines only: 11 lines in the file, 21 expected lines missing
DSP Exchange — partner (reseller) lines only: 340 lines in the file, 221 expected lines missing
Madex — partner (reseller) lines only: 5 lines in the file, 13 expected lines missing
Prado — partner (reseller) lines only: 21 lines in the file, 6 expected lines missing
HyprMX — partner (reseller) lines only: 241 lines in the file, 128 expected lines missing
Start.io — partner (reseller) lines only: 123 lines in the file, 34 expected lines missing
Kidoz — partner (reseller) lines only: 17 lines in the file, 5 expected lines missing
CAS.ai — partner (reseller) lines only: 157 lines in the file, 8 expected lines missing
DSail — partner (reseller) lines only: 157 lines in the file, 8 expected lines missing

Invalid lines

b42d42eb28400efa, targetbetter.com, 6451, RESELLER
anzu, 6926f89af6ae04ecf7a64747, RESELLER

Corrected file: cardmania.top app-ads.txt (fixed).

FAQ

Does cardmania.top have an app-ads.txt?

Yes — https://cardmania.top/app-ads.txt has 6,427 lines (checked 20 Oct 2026).

Which ad networks does cardmania.top work with?

Its app-ads.txt lists Google AdMob, AppLovin, Meta Audience Network, Amazon Publisher Services, Smaato, Bidmachine, Magnite (Rubicon), Unity Ads, DT Exchange (Fyber), InMobi, PubMatic, Yango Ads and 23 more.

Is the app-ads.txt of cardmania.top correct?