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.

gismart.com app-ads.txt check

gismart.com is missing out on higher CPMs: its app-ads.txt has 13 invalid lines and lists only 5,006 of the 7,788 lines its 28 ad networks expect (36% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 20 Oct 2026. 5,930 lines, 4,157 unique records, 1,760 duplicates, 13 invalid lines, 39 ad networks detected.

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

AppLovin — account 48fffa2d509a233be05e7ccbadd53811: 24 lines in the file, 12 expected lines missing
Chartboost — account 57ff726f04b016161464a83a: 400 lines in the file, 300 expected lines missing
DT Exchange (Fyber) — accounts 118378, 212215: 288 lines in the file, 164 expected lines missing
Google AdMob — accounts pub-2626278881217468, pub-7079691902491759: 2 lines in the file
InMobi — accounts 1a698dd2011a4b409c9bd8f6e06266b0, 59c7922793a3477b9419f0854d1da7e9, 950da4a32b764ec7be601701546bc784 and 1 more: 145 lines in the file, 130 expected lines missing
ironSource / LevelPlay — account 178599: 75 lines in the file, 51 expected lines missing
Unity Ads — account 1063229: 88 lines in the file, 73 expected lines missing
Vungle — account 57d671c6758a635206000019: 259 lines in the file, 101 expected lines missing
Yahoo — accounts 58701, 29225, 58993: 3 lines in the file
Smaato — accounts 1100046656, 1100028365, 1100052545 and 4 more: 7 lines in the file
Index Exchange — account 192104: 1 line in the file
PubMatic — accounts 159527, 160565, 159078 and 4 more: 7 lines in the file
Xandr (Microsoft) — accounts 9914, 12061, 12501 and 3 more: 6 lines in the file
Sovrn — accounts 297837, 411915, 563477 and 5 more: 8 lines in the file
TikTok Ad Network (Pangle) — account 9898: 1 line in the file
HyprMX — account 25320493868: 201 lines in the file, 169 expected lines missing
Mintegral — account 9298: 400 lines in the file, 322 expected lines missing
Amazon Publisher Services — accounts 6900db45-7b4d-405c-a843-76bebbf1d7db, ae1f4fa9-4c21-43d6-ab37-fef93b9959ee: 2 lines in the file
Criteo — accounts 180031, 181330, 180034 and 5 more: 8 lines in the file
OpenX — accounts 540659096, 540659099, 540310752 and 3 more: 6 lines in the file
Magnite (Rubicon) — accounts 11784, 19652: 2 lines in the file
TripleLift — accounts 13041, 6998, 14146: 3 lines in the file
CAS.ai — account b5a73ae1: 136 lines in the file, 29 expected lines missing
Start.io — account 117514417: 115 lines in the file, 43 expected lines missing
BIGO Ads — account 23174336: 400 lines in the file, 160 expected lines missing
Bidmachine — account 1546: 400 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — account 5135063: 219 lines in the file, 226 expected lines missing
BlueSea — account 204037: 24 lines in the file, 14 expected lines missing
Yandex Ads — partner (reseller) lines only: 139 lines in the file, 29 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 108 lines in the file, 36 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 31 lines in the file, 18 expected lines missing
Display.io — partner (reseller) lines only: 10 lines in the file, 22 expected lines missing
DSP Exchange — partner (reseller) lines only: 317 lines in the file, 244 expected lines missing
Madex — partner (reseller) lines only: 5 lines in the file, 13 expected lines missing
Monetrix — partner (reseller) lines only: 46 lines in the file, 47 expected lines missing
Prado — partner (reseller) lines only: 7 lines in the file, 20 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
DSail — partner (reseller) lines only: 136 lines in the file, 29 expected lines missing

Invalid lines

5d62403b186f2ace rubiconproject.com,
23822, RESELLER,0bfd66d529a55807
outbrain.com, 002d7f7ba0bd74452f2b155d0dfb5cd6c8, RESELLER appnexus.com, 12501,RESELLER, f5ab79cb980f11d1
video. unrulymedia.com, 188404962, RESELLER
rhebus. works, 7597018658, RESELLER
rubiconproject .com, 24600,RESELLER, 0bfd66d529a55807
inmobi.com, 3a4f7da341dd490cbb7dde02b126275e, RESELLER,83e75a7ae333ca9d triplelift.com, 12240,RESELLER,6c33edb13117fd86
agon. mobi, 686, RESELLER
adform.com, 2742, RESELLER indexexchange.com, 194730,RESELLER
themediagrid.com, YUPM3V,RESELLER,35d5010d7789b49d xandr.com,13167,RESELLER
conversantmedia.com, 40881,RESELLER,03113cd04947736d smaato.com, 1100004890,RESELLER video.unrulymedia.com, 564934834,RESELLER
singularads, 225023, RESELLER
lemmatechnologies,1844,RESELLER

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

FAQ

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

Yes — https://gismart.com/app-ads.txt has 5,930 lines (checked 20 Oct 2026).

Which ad networks does gismart.com work with?

Its app-ads.txt lists AppLovin, Chartboost, DT Exchange (Fyber), Google AdMob, InMobi, ironSource / LevelPlay, Unity Ads, Vungle, Yahoo, Smaato, Index Exchange, PubMatic and 27 more.

gismart.com app-ads.txt check

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

Invalid lines

FAQ

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

Which ad networks does gismart.com work with?

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

Other checked domains

More