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.

masomo.com app-ads.txt check

masomo.com is missing out on higher CPMs: its app-ads.txt has 21 invalid lines and lists only 6,550 of the 8,394 lines its 31 ad networks expect (22% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 12,160 lines, 6,246 unique records, 5,677 duplicates, 21 invalid lines, 43 ad networks detected.

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

PubMatic — accounts 165874, 166950, 166385 and 14 more: 17 lines in the file
Google AdMob — accounts pub-2834830430942988, pub-4804235004830147, pub-3444164362292791 and 7 more: 10 lines in the file
Unity Ads — account 30851: 120 lines in the file, 41 expected lines missing
AppLovin — account 2afbf06c8e147f64af86feeb215fc347: 35 lines in the file, 1 expected line missing
DT Exchange (Fyber) — account 208340: 400 lines in the file, 25 expected lines missing
Mintegral — account 20505: 400 lines in the file, 181 expected lines missing
Chartboost — account 5d11e10d1581f10e6d97c773: 400 lines in the file, 40 expected lines missing
Liftoff Monetize (Vungle) — account 561e8d926b8d90f61a00013e: 360 lines in the file, 31 expected lines missing
InMobi — accounts f3d6142e04254cf5a9ebcb16b724524f, 4eec1a4c9837415c9889705b40ae285b, ddb41d8a9f434a918d05a0fc9999d9f9: 206 lines in the file, 68 expected lines missing
ironSource / LevelPlay — account 135273: 101 lines in the file, 25 expected lines missing
Sovrn — accounts 411915, 563477, 224984 and 7 more: 10 lines in the file
Maticoo (zMaticoo) — accounts 5135063, 118990: 338 lines in the file, 108 expected lines missing
Magnite (Rubicon) — accounts 166535, 26980, 27420 and 10 more: 13 lines in the file
Xandr (Microsoft) — accounts 14416, 12616, 9726 and 4 more: 7 lines in the file
Amazon Publisher Services — accounts 42df5c79-9a6a-4118-b46f-dd311cf16fb8, 1c68dc75-2f1e-44da-816e-5a2876b829f3: 2 lines in the file
Criteo — accounts B-066465, b-072394, b-059025 and 4 more: 7 lines in the file
Ogury — account 5bbe7af9-d51f-499e-a804-db54798d96f4: 9 lines in the file, 9 expected lines missing
OpenX — accounts 559912325, 544024587, 540861995 and 4 more: 7 lines in the file
Smaato — accounts 1100048585, 1100054974, 1100052458 and 1 more: 4 lines in the file
Start.io — accounts 157659870, 163241862, 117514417: 95 lines in the file, 65 expected lines missing
TripleLift — accounts 13041, 6998, 14146: 3 lines in the file
TikTok Ad Network (Pangle) — account 9898: 1 line in the file
Index Exchange — accounts 188416, 193067, 200201: 3 lines in the file
Yahoo — accounts 55305, 58855, 59435 and 2 more: 5 lines in the file
HyprMX — account 27433086464: 337 lines in the file, 33 expected lines missing
Verve (PubNative) — accounts 1016635, 1009762: 400 lines in the file, 380 expected lines missing
MobileFuse — account 4530: 1 line in the file
Meta Audience Network — account 10152568573772002: 1 line in the file
Bidmachine — accounts 181, 1059: 400 lines in the file, 400 expected lines missing
CAS.ai — accounts b5a73ae1, babe9c54: 133 lines in the file, 32 expected lines missing
BlueSea — account 204037: 25 lines in the file, 13 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: 95 lines in the file, 49 expected lines missing
BIGO Ads — partner (reseller) lines only: 400 lines in the file, 279 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 35 lines in the file, 14 expected lines missing
Display.io — partner (reseller) lines only: 10 lines in the file, 22 expected lines missing
DSP Exchange — partner (reseller) lines only: 399 lines in the file, 162 expected lines missing
Madex — partner (reseller) lines only: 7 lines in the file, 11 expected lines missing
Monetrix — partner (reseller) lines only: 51 lines in the file, 42 expected lines missing
Prado — partner (reseller) lines only: 16 lines in the file, 11 expected lines missing
Kidoz — partner (reseller) lines only: 13 lines in the file, 9 expected lines missing
DSail — partner (reseller) lines only: 133 lines in the file, 32 expected lines missing

Invalid lines

improvedigital, 2343, RESELLER
89b49d
adyoulike.com,4d5014f8da11fc0a70ebbda5d4bidmachine.io,1059,DIRECT
themediagrid.com,RIX2M5,RESELLER,35d5010d77537935,DIRECT
pubmatic,163963,RESELLER,5d62403b186f2ace
start.io, smt, reselle
rubiconprojectcom, 25872, reseller, 0bfd66d529a55807
iqzone.com, IQ26, RESELLER lijit.com, 452742, RESELLER, fafdf38b16bf6b2b
peak226.com, 12908, RESELLER peak226.com, 12909, RESELLER
pubnative.net, 1007419, RESELLER, d641df8625486a7b rubiconproject.com, 19744, RESELLER, 0bfd66d529a55807
conversantmedia.com, 41896, RESELLER 03113cd04947736d
lijit.com, 513831, INTERMEDIARY, fafdf38b16bf6b2b
524ecb396915caaf
83e75a7ae333ca9d
singularads, 556985, direct

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

FAQ

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

Yes — https://masomo.com/app-ads.txt has 12,160 lines (checked 19 Oct 2026).

Which ad networks does masomo.com work with?

Its app-ads.txt lists PubMatic, Google AdMob, Unity Ads, AppLovin, DT Exchange (Fyber), Mintegral, Chartboost, Liftoff Monetize (Vungle), InMobi, ironSource / LevelPlay, Sovrn, Maticoo (zMaticoo) and 31 more.

masomo.com app-ads.txt check

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

Invalid lines

FAQ

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

Which ad networks does masomo.com work with?

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

Other checked domains

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