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.

ysocorp.com app-ads.txt check

ysocorp.com is missing out on higher CPMs: its app-ads.txt has 3 invalid lines and lists only 6,664 of the 8,795 lines its 30 ad networks expect (24% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 7,388 lines, 7,017 unique records, 368 duplicates, 3 invalid lines, 43 ad networks detected.

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

AppLovin — account 493013d65e70917122427f1401fff1f8: 36 lines in the file
Xandr (Microsoft) — accounts 12252, 14808, 15799 and 3 more: 6 lines in the file
Amazon Publisher Services — accounts 3893, 42df5c79-9a6a-4118-b46f-dd311cf16fb8, 4cd01fd0-0780-4b33-a4da-c39467660185 and 3 more: 6 lines in the file
Bidmachine — accounts 200, 366-1, 366: 400 lines in the file, 400 expected lines missing
BIGO Ads — account 1111690: 400 lines in the file, 222 expected lines missing
Chartboost — accounts 6169a68fe5ad8507e7ba0455, 650866b284217d6bad2c27ef: 400 lines in the file, 1 expected line missing
Criteo — accounts b-059856, B-060738, B-061015 and 3 more: 6 lines in the file
Meta Audience Network — account 158877811768103: 1 line in the file
DT Exchange (Fyber) — account 214597: 400 lines in the file, 2 expected lines missing
Google AdMob — accounts pub-2085247160344713, pub-2114251433804374, pub-2233829666677759 and 4 more: 7 lines in the file
Index Exchange — accounts 192585, 213773: 2 lines in the file
InMobi — accounts 64390d9c0d0541bc9b06ab42a124b396, 8553511ff9e24ce2b1f5d98addcc3340, 86f4ada02c4f4417ba3720934bec0e9e and 2 more: 212 lines in the file, 64 expected lines missing
ironSource / LevelPlay — account 239487: 92 lines in the file, 34 expected lines missing
Sovrn — accounts 397546, 411915, 509119-eb and 9 more: 12 lines in the file
Mintegral — account 17899: 400 lines in the file, 84 expected lines missing
MobileFuse — account 4420: 1 line in the file
Moloco — account 4108: 1 line in the file
Ogury — accounts 3373e595-6525-4c86-ba79-d63f459e7e50, 5bbe7af9-d51f-499e-a804-db54798d96f4: 12 lines in the file, 7 expected lines missing
OpenX — accounts 559912325, 562857053, 562857054 and 1 more: 4 lines in the file
TikTok Ad Network (Pangle) — account 34224: 1 line in the file
PubMatic — accounts 157743, 160792, 160872 and 9 more: 12 lines in the file
Verve (PubNative) — accounts 1008066, 1009009, 1016935: 400 lines in the file, 43 expected lines missing
Magnite (Rubicon) — accounts 10653, 13510, 166535 and 12 more: 15 lines in the file
Smaato — accounts 1100048585, 1100049696, 1100052458 and 5 more: 8 lines in the file
Start.io — accounts 126457971, 163241862: 106 lines in the file, 53 expected lines missing
TripleLift — accounts 11527-EB, 11527, 13041 and 6 more: 9 lines in the file
Unity Ads — account 1634378: 99 lines in the file, 62 expected lines missing
Liftoff Monetize (Vungle) — account 5c80f9bb0a32ff48333bcd68: 343 lines in the file, 48 expected lines missing
Yandex Ads — account 107029749: 149 lines in the file, 20 expected lines missing
Maticoo (zMaticoo) — account 5135063: 234 lines in the file, 211 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 120 lines in the file, 24 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
BlueSea — partner (reseller) lines only: 20 lines in the file, 17 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, 114 expected lines missing
Madex — partner (reseller) lines only: 8 lines in the file, 10 expected lines missing
Monetrix — partner (reseller) lines only: 49 lines in the file, 44 expected lines missing
Prado — partner (reseller) lines only: 13 lines in the file, 14 expected lines missing
HyprMX — partner (reseller) lines only: 269 lines in the file, 100 expected lines missing
Kidoz — partner (reseller) lines only: 10 lines in the file, 12 expected lines missing
CAS.ai — partner (reseller) lines only: 142 lines in the file, 23 expected lines missing
DSail — partner (reseller) lines only: 142 lines in the file, 23 expected lines missing

Invalid lines

facebook.com,null,RESELLER,c3e20eee3f780d68
facebook.com,undefined,RESELLER,c3e20eee3f780d68
omgstudios,160620251,DIRECT

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

FAQ

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

Yes — https://ysocorp.com/app-ads.txt has 7,388 lines (checked 19 Oct 2026).

Which ad networks does ysocorp.com work with?

Its app-ads.txt lists AppLovin, Xandr (Microsoft), Amazon Publisher Services, Bidmachine, BIGO Ads, Chartboost, Criteo, Meta Audience Network, DT Exchange (Fyber), Google AdMob, Index Exchange, InMobi and 31 more.

ysocorp.com app-ads.txt check

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

Invalid lines

FAQ

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

Which ad networks does ysocorp.com work with?

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

Other checked domains

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