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.

free.imbigcat.com app-ads.txt check

free.imbigcat.com is missing out on higher CPMs: its app-ads.txt has 7 invalid lines and lists only 7,635 of the 9,527 lines its 26 ad networks expect (20% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 5,648 lines, 4,931 unique records, 631 duplicates, 7 invalid lines, 37 ad networks detected.

Ad networks in free.imbigcat.com/app-ads.txt

Google AdMob — accounts pub-3963172604995572, pub-8447350800183789, pub-2701673216154702 and 1 more: 4 lines in the file
Meta Audience Network — accounts 205428036857707, 5011276932287072: 2 lines in the file
Unity Ads — accounts 1120437, 4120034: 159 lines in the file, 3 expected lines missing
AppLovin — accounts a7f7455b63e785e1b783ec642d025f0b, 09065e1349d31454b5b8c98da47088ec: 37 lines in the file
Smaato — accounts 1100048646, 1100057628, 1100057546: 3 lines in the file
TikTok Ad Network (Pangle) — account 88160: 1 line in the file
InMobi — accounts 44ac3b0daf9047b98f89c41854c08f42, c0f96b372c2b4f2794b891f9eaed4a5a, ddb41d8a9f434a918d05a0fc9999d9f9: 265 lines in the file, 9 expected lines missing
PubMatic — accounts 161207, 160854, 95054: 3 lines in the file
Yandex Ads — account 95501061: 166 lines in the file, 3 expected lines missing
Amazon Publisher Services — account 0a0e25e7-7091-41f1-b872-7992c143b287: 1 line in the file
DT Exchange (Fyber) — accounts 221467, 218344: 400 lines in the file, 36 expected lines missing
Start.io — account 117514417: 122 lines in the file, 36 expected lines missing
BIGO Ads — accounts 1113879, 23169155, 23170194 and 3 more: 400 lines in the file, 25 expected lines missing
Magnite (Rubicon) — accounts 26442, 26440, 166535: 3 lines in the file
Bidmachine — accounts 200, 1277: 400 lines in the file, 400 expected lines missing
Liftoff Monetize (Vungle) — account 598963f59fa26d1d69001a0e: 364 lines in the file, 27 expected lines missing
ironSource / LevelPlay — account 199781: 115 lines in the file, 11 expected lines missing
CAS.ai — accounts b5a73ae1, babe9c54: 163 lines in the file, 2 expected lines missing
Mintegral — account 58152: 400 lines in the file, 41 expected lines missing
Sovrn — accounts 411915, 563477, 594162 and 4 more: 7 lines in the file
Maticoo (zMaticoo) — accounts 5135063, 114490: 264 lines in the file, 182 expected lines missing
Yango Ads — account 95501061: 400 lines in the file, 400 expected lines missing
OpenX — accounts 563905670, 564921063, 564972066: 3 lines in the file
TripleLift — accounts 6998, 14146: 2 lines in the file
Monetrix — account 11105: 56 lines in the file, 38 expected lines missing
BlueSea — account 204037: 25 lines in the file, 13 expected lines missing
Chartboost — partner (reseller) lines only: 400 lines in the file, 184 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 107 lines in the file, 37 expected lines missing
Bidease — partner (reseller) lines only: 39 lines in the file, 10 expected lines missing
Display.io — partner (reseller) lines only: 15 lines in the file, 17 expected lines missing
DSP Exchange — partner (reseller) lines only: 326 lines in the file, 235 expected lines missing
Madex — partner (reseller) lines only: 7 lines in the file, 11 expected lines missing
Prado — partner (reseller) lines only: 20 lines in the file, 7 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 211 lines in the file, 158 expected lines missing
Kidoz — partner (reseller) lines only: 16 lines in the file, 6 expected lines missing
DSail — partner (reseller) lines only: 163 lines in the file, 2 expected lines missing

Invalid lines

vungle.com,[598963f59fa26d1d69001a0e],DIRECT,c107d686becd2d77
ironsrc.com, [199781], Direct
ironsrc.com, [199781], Direct
Resellers as of July 22, 2024
improvedigital, 2343, RESELLER
b42d42eb28400efa, targetbetter.com, 6451, RESELLER
lemmatechnologies, 1844, RESELLER

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

FAQ

Does free.imbigcat.com have an app-ads.txt?

Yes — https://free.imbigcat.com/app-ads.txt has 5,648 lines (checked 19 Oct 2026).

Which ad networks does free.imbigcat.com work with?

Its app-ads.txt lists Google AdMob, Meta Audience Network, Unity Ads, AppLovin, Smaato, TikTok Ad Network (Pangle), InMobi, PubMatic, Yandex Ads, Amazon Publisher Services, DT Exchange (Fyber), Start.io and 25 more.

free.imbigcat.com app-ads.txt check

Ad networks in free.imbigcat.com/app-ads.txt

Invalid lines

FAQ

Does free.imbigcat.com have an app-ads.txt?

Which ad networks does free.imbigcat.com work with?

Is the app-ads.txt of free.imbigcat.com correct?

Other checked domains

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