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.

dazn.com app-ads.txt check

dazn.com is missing out on higher CPMs: its app-ads.txt has 1 invalid line. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 562 lines, 537 unique records, 24 duplicates, 1 invalid lines, 18 ad networks detected.

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

Google AdMob — accounts pub-1283624027922691, pub-1196612482735528, pub-8163703492351455 and 2 more: 5 lines in the file
PubMatic — accounts 162144, 163478, 163991 and 6 more: 9 lines in the file
Index Exchange — accounts 206827, 207596, 207598 and 3 more: 6 lines in the file
TripleLift — accounts 14024, 14024-EB, 14164 and 1 more: 4 lines in the file
Sovrn — accounts 485620, 485620-eb, 499619: 3 lines in the file
Magnite (Rubicon) — account 26806: 1 line in the file
OpenX — accounts 561243254, 560563144: 2 lines in the file
Xandr (Microsoft) — accounts 12400, 9178, 3927 and 1 more: 4 lines in the file
Yahoo — account 60174: 1 line in the file
Mintegral — partner (reseller) lines only: 28 lines in the file, 400 expected lines missing
Chartboost — partner (reseller) lines only: 25 lines in the file, 400 expected lines missing
BIGO Ads — partner (reseller) lines only: 19 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 58 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 32 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 33 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 14 lines in the file, 355 expected lines missing
Bidmachine — partner (reseller) lines only: 44 lines in the file, 400 expected lines missing

Invalid lines

Prismriotads.com, 67099, RESELLER 21e44d1aeccd12ef

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

FAQ

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

Yes — https://dazn.com/app-ads.txt has 562 lines (checked 20 Oct 2026).

Which ad networks does dazn.com work with?

Its app-ads.txt lists Google AdMob, PubMatic, Index Exchange, TripleLift, Sovrn, Magnite (Rubicon), OpenX, Xandr (Microsoft), Yahoo, Mintegral, Chartboost, BIGO Ads and 6 more.

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