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.

zaloapp.com app-ads.txt check

zaloapp.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. 401 lines, 333 unique records, 53 duplicates, 1 invalid lines, 12 ad networks detected.

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

Google AdMob — accounts pub-5566024169310487, pub-0538304250621736, pub-5256945053354815 and 6 more: 9 lines in the file
Index Exchange — accounts 187663, 189340, 192106 and 3 more: 6 lines in the file
PubMatic — accounts 158104, 158222, 156709 and 3 more: 6 lines in the file
Magnite (Rubicon) — accounts 21006, 23216, 23218 and 1 more: 4 lines in the file
OpenX — accounts 540635218, 540769701, 538929384 and 1 more: 4 lines in the file
Sovrn — account 230297: 1 line in the file
TripleLift — accounts 7504-EB, 6842-EB: 2 lines in the file
Xandr (Microsoft) — accounts 10062, 9684: 2 lines in the file
Chartboost — partner (reseller) lines only: 10 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 13 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 13 lines in the file, 400 expected lines missing

Invalid lines

aolcloud.net, 9993, RESELLERv

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

FAQ

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

Yes — https://zaloapp.com/app-ads.txt has 401 lines (checked 20 Oct 2026).

Which ad networks does zaloapp.com work with?

Its app-ads.txt lists Google AdMob, Index Exchange, PubMatic, Magnite (Rubicon), OpenX, Sovrn, TripleLift, Xandr (Microsoft), Chartboost, Yango Ads, DSP Exchange, Bidmachine.

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