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.

fyber.com app-ads.txt check

fyber.com is missing out on higher CPMs: its app-ads.txt lists only 1,163 of the 5,388 lines its 14 ad networks expect (78% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 20 Oct 2026. 845 lines, 784 unique records, 47 duplicates, 0 invalid lines, 30 ad networks detected.

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

PubMatic — accounts 64612, 157294, 157899 and 1 more: 4 lines in the file
Xandr (Microsoft) — account 6888: 1 line in the file
Google AdMob — accounts pub-5831041022424645, pub-6919606565343213, pub-5168737516215182: 3 lines in the file
Index Exchange — accounts 187015, 215722, 191572: 3 lines in the file
DT Exchange (Fyber) — account 208585: 400 lines in the file, 32 expected lines missing
Magnite (Rubicon) — accounts 26094, 15320: 2 lines in the file
Bidease — account bidease_seller_28: 18 lines in the file, 32 expected lines missing
Bidmachine — account 124: 339 lines in the file, 400 expected lines missing
InMobi — account 7c9e112a810a4b639bb6af3fa397233e: 58 lines in the file, 214 expected lines missing
OpenX — account 562846767: 1 line in the file
Verve (PubNative) — account 1007055: 196 lines in the file, 400 expected lines missing
Smaato — accounts 1100060020, 1100058831: 2 lines in the file
Start.io — accounts 170705356, 192470308: 32 lines in the file, 127 expected lines missing
Maticoo (zMaticoo) — account 51355351: 87 lines in the file, 358 expected lines missing
AppLovin — partner (reseller) lines only: 15 lines in the file, 20 expected lines missing
Mintegral — partner (reseller) lines only: 207 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 48 lines in the file, 112 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 37 lines in the file, 88 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 159 lines in the file, 231 expected lines missing
Chartboost — partner (reseller) lines only: 146 lines in the file, 400 expected lines missing
Yandex Ads — partner (reseller) lines only: 60 lines in the file, 108 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 33 lines in the file, 111 expected lines missing
BIGO Ads — partner (reseller) lines only: 163 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
BlueSea — partner (reseller) lines only: 8 lines in the file, 29 expected lines missing
DSP Exchange — partner (reseller) lines only: 57 lines in the file, 400 expected lines missing
Monetrix — partner (reseller) lines only: 16 lines in the file, 77 expected lines missing
HyprMX — partner (reseller) lines only: 55 lines in the file, 314 expected lines missing
CAS.ai — partner (reseller) lines only: 52 lines in the file, 113 expected lines missing
DSail — partner (reseller) lines only: 52 lines in the file, 113 expected lines missing

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

FAQ

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

Yes — https://fyber.com/app-ads.txt has 845 lines (checked 20 Oct 2026).

Which ad networks does fyber.com work with?

Its app-ads.txt lists PubMatic, Xandr (Microsoft), Google AdMob, Index Exchange, DT Exchange (Fyber), Magnite (Rubicon), Bidease, Bidmachine, InMobi, OpenX, Verve (PubNative), Smaato and 18 more.

fyber.com app-ads.txt check

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

FAQ

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

Which ad networks does fyber.com work with?

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

Other checked domains

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