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.

41nbc.com app-ads.txt check

41nbc.com is missing out on higher CPMs: its app-ads.txt has 8 invalid lines and lists only 151 of the 418 lines its 14 ad networks expect (64% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 2,665 lines, 2,269 unique records, 227 duplicates, 8 invalid lines, 32 ad networks detected.

Ad networks in 41nbc.com/app-ads.txt

Amazon Publisher Services — accounts 0ab198dd-b265-462a-ae36-74e163ad6159, e42ec5cd-11f7-4d8a-a91c-74054da9c4cb, c5caf734-0288-4247-a0f9-d1edc6e65953 and 2 more: 5 lines in the file
Index Exchange — accounts 184310, 186431, 193334 and 9 more: 12 lines in the file
InMobi — account 44ce8dca19d54696bbb793d4607fecb0: 34 lines in the file, 238 expected lines missing
Magnite (Rubicon) — accounts 16924, 17486, 18976 and 11 more: 14 lines in the file
Xandr (Microsoft) — accounts 7125, 7154, 12020 and 8 more: 11 lines in the file
OpenX — accounts 539181723, 539618221, 539900106 and 10 more: 13 lines in the file
PubMatic — accounts 156696, 157235, 160726 and 15 more: 18 lines in the file
Sovrn — accounts 239429, 239429-eb, 303767 and 12 more: 15 lines in the file
TripleLift — accounts 5579, 11420, 11419 and 8 more: 11 lines in the file
Yahoo — accounts 57064, 59212, 54903 and 2 more: 5 lines in the file
Google AdMob — accounts pub-3255603497610569, pub-8674886994828280, pub-8125709354810880 and 6 more: 9 lines in the file
Smaato — accounts 1100052458, 1100054264, 1100058927 and 1 more: 4 lines in the file
AppLovin — account 2713cc543ecb0969b83e3fdbf9ff011f: 7 lines in the file, 29 expected lines missing
Criteo — account B-060927: 1 line in the file
Mintegral — partner (reseller) lines only: 151 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 33 lines in the file, 127 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 29 lines in the file, 96 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 79 lines in the file, 311 expected lines missing
Chartboost — partner (reseller) lines only: 206 lines in the file, 400 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 77 lines in the file, 373 expected lines missing
Yandex Ads — partner (reseller) lines only: 34 lines in the file, 134 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 18 lines in the file, 126 expected lines missing
BIGO Ads — partner (reseller) lines only: 179 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 358 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 103 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 75 lines in the file, 369 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 225 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 91 lines in the file, 278 expected lines missing
Start.io — partner (reseller) lines only: 27 lines in the file, 130 expected lines missing
CAS.ai — partner (reseller) lines only: 31 lines in the file, 134 expected lines missing
DSail — partner (reseller) lines only: 31 lines in the file, 134 expected lines missing
Bidmachine — partner (reseller) lines only: 276 lines in the file, 400 expected lines missing

Invalid lines

Last updated 06-11-2026
smaato.com,00000000,DIRECT,07bcf65f187117b4
madhive.com, 0, DIRECT, b16d6d9e0982efe4
freewheel.tv, XXXXXX, RESELLER
conversantmedia.com, 100141, DIRECT/RESELLER, 03113cd04947736d #hb #tag #video
amagi.com, #####, DIRECT
Keenkale, 20242025, RESELLER
pubmatic.com, 161428, BOTH, 5d62403b186f2ace

Corrected file: 41nbc.com app-ads.txt (fixed).

FAQ

Does 41nbc.com have an app-ads.txt?

Yes — https://41nbc.com/app-ads.txt has 2,665 lines (checked 19 Oct 2026).

Which ad networks does 41nbc.com work with?

Its app-ads.txt lists Amazon Publisher Services, Index Exchange, InMobi, Magnite (Rubicon), Xandr (Microsoft), OpenX, PubMatic, Sovrn, TripleLift, Yahoo, Google AdMob, Smaato and 20 more.

41nbc.com app-ads.txt check

Ad networks in 41nbc.com/app-ads.txt

Invalid lines

FAQ

Does 41nbc.com have an app-ads.txt?

Which ad networks does 41nbc.com work with?

Is the app-ads.txt of 41nbc.com correct?

Other checked domains

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