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.

fomo.gs app-ads.txt check

fomo.gs is missing out on higher CPMs: its app-ads.txt has 26 invalid lines and lists only 4,502 of the 5,437 lines its 31 ad networks expect (17% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 23 Oct 2026. 16,542 lines, 6,434 unique records, 10,031 duplicates, 26 invalid lines, 42 ad networks detected.

Ad networks in fomo.gs/app-ads.txt

Meta Audience Network — account 371073670299488: 1 line in the file
AppLovin — account b56cbff28b6facb4ebc1cb3933686ca6: 36 lines in the file
Google AdMob — accounts pub-5979388830186908, pub-8278416939377896, pub-2233829666677759 and 7 more: 10 lines in the file
Unity Ads — account 1861238: 137 lines in the file, 24 expected lines missing
ironSource / LevelPlay — account 233131: 109 lines in the file, 17 expected lines missing
Liftoff Monetize (Vungle) — account 60afcdd4407e6d0018810836: 369 lines in the file, 22 expected lines missing
InMobi — accounts 86f4ada02c4f4417ba3720934bec0e9e, c0dd15858e054fab842e99f56f266c67, 0c5a288c5bc842bbac20f6cd0ddb0098 and 2 more: 213 lines in the file, 63 expected lines missing
Mintegral — account 19584: 400 lines in the file, 178 expected lines missing
TikTok Ad Network (Pangle) — accounts 5007239, 5006878: 2 lines in the file
DT Exchange (Fyber) — account 220582: 400 lines in the file
Magnite (Rubicon) — accounts 19454, 19452, 22988 and 5 more: 8 lines in the file
PubMatic — accounts 160792, 160872, 160850 and 3 more: 6 lines in the file
Criteo — accounts B-061015, B-063382, B-057702 and 1 more: 4 lines in the file
Chartboost — account 640a11c93ce8130efd084cf0: 400 lines in the file, 135 expected lines missing
TripleLift — accounts 11527, 11527-EB, 6998 and 1 more: 4 lines in the file
Index Exchange — account 192585: 1 line in the file
Xandr (Microsoft) — accounts 12039, 9284, 15686 and 2 more: 5 lines in the file
Sovrn — accounts 293179, 293179-eb, 224984 and 8 more: 11 lines in the file
OpenX — accounts 557323449, 540224251, 563905670 and 2 more: 5 lines in the file
Amazon Publisher Services — accounts c30240a6-e308-4797-aafb-9ac187e75b69, 67344145-9455-4c99-9512-65af46a216b5: 2 lines in the file
Yandex Ads — account a90af27cf576c45e86984e256f43ed23: 147 lines in the file, 22 expected lines missing
MobileFuse — account 4550: 1 line in the file
Verve (PubNative) — accounts 1009525, 1017478: 400 lines in the file, 231 expected lines missing
Bidmachine — account 658: 400 lines in the file, 90 expected lines missing
Start.io — account 117514417: 126 lines in the file, 32 expected lines missing
BIGO Ads — account 1115938: 400 lines in the file
Smaato — accounts 1100058663, 1100059804: 2 lines in the file
CAS.ai — accounts b5a73ae1, babe9c54: 140 lines in the file, 25 expected lines missing
Maticoo (zMaticoo) — account 5135063: 290 lines in the file, 155 expected lines missing
Monetrix — account 387: 70 lines in the file, 24 expected lines missing
BlueSea — account 204037: 25 lines in the file, 13 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 104 lines in the file, 40 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 39 lines in the file, 10 expected lines missing
Display.io — partner (reseller) lines only: 11 lines in the file, 21 expected lines missing
DSP Exchange — partner (reseller) lines only: 387 lines in the file, 174 expected lines missing
Madex — partner (reseller) lines only: 8 lines in the file, 10 expected lines missing
Prado — partner (reseller) lines only: 21 lines in the file, 6 expected lines missing
Ogury — partner (reseller) lines only: 9 lines in the file, 8 expected lines missing
HyprMX — partner (reseller) lines only: 277 lines in the file, 92 expected lines missing
Kidoz — partner (reseller) lines only: 17 lines in the file, 5 expected lines missing
DSail — partner (reseller) lines only: 140 lines in the file, 25 expected lines missing

Invalid lines

yahoo.com, 58905, RESELLER e1a5b5b6e3255540
pubmatic.com, 156520, RESELLER, 5d62403b186f2ace (key account for SEA)
pubmatic.com, 160456, RESELLER, 5d62403b186f2ace (key account for India)
ironsrc.com,yeahmobi.com,rubiconproject.com
adelement.com,30208,RESELLER adform.com,3083,RESELLER
admanmedia.com,990,RESELLER admixer.co.kr,1094,RESELLER
admixer.co.kr,1610,RESELLER admixer.co.kr,1654,RESELLER
algorix.co,54250,RESELLER aniview.com,603f65a2e291680ef30af9c7,RESELLER,78b21b97965ec3f8
appnexus.com,15426,RESELLER,f5ab79cb980f11d1 appnexus.com,1752,RESELLER,f5ab79cb980f11d1
appnexus.com,7351,RESELLER,f5ab79cb980f11d1 appnexus.com,7597,RESELLER,f5ab79cb980f11d1 appnexus.com,9316,RESELLER,f5ab79cb980f11d1
bidmachine.io,147,RESELLER bidmachine.io,148,RESELLER
bidmachine.io,189,RESELLER bidmachine.io,190,RESELLER
bidmachine.io,36,RESELLER bidmachine.io,55,RESELLER bidmachine.io,59,RESELLER
bidmachine.io,60,RESELLER bidmachine.io,74,RESELLER bidmachine.io,77,RESELLER
bigo.sg,122,RESELLER bigo.sg,143,RESELLER blueseasx.com,203592,RESELLER

Corrected file: fomo.gs app-ads.txt (fixed).

FAQ

Does fomo.gs have an app-ads.txt?

Yes — https://fomo.gs/app-ads.txt has 16,542 lines (checked 23 Oct 2026).

Which ad networks does fomo.gs work with?

Its app-ads.txt lists Meta Audience Network, AppLovin, Google AdMob, Unity Ads, ironSource / LevelPlay, Liftoff Monetize (Vungle), InMobi, Mintegral, TikTok Ad Network (Pangle), DT Exchange (Fyber), Magnite (Rubicon), PubMatic and 30 more.

fomo.gs app-ads.txt check

Ad networks in fomo.gs/app-ads.txt

Invalid lines

FAQ

Does fomo.gs have an app-ads.txt?

Which ad networks does fomo.gs work with?

Is the app-ads.txt of fomo.gs correct?

Other checked domains

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