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.

upday.com app-ads.txt check

upday.com is missing out on higher CPMs: its app-ads.txt lists only 42 of the 1,251 lines its 12 ad networks expect (97% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 229 lines, 141 unique records, 23 duplicates, 0 invalid lines, 13 ad networks detected.

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

Xandr (Microsoft) — accounts 7823, 8147: 2 lines in the file
Amazon Publisher Services — accounts 5014, 30805ce0-fa76-4fc1-971c-01a700cc492b, 06754b67-9aaf-45ec-b558-bc35ff8a4bd2: 3 lines in the file
PubMatic — accounts 159671, 156678, 157222 and 3 more: 6 lines in the file
Magnite (Rubicon) — accounts 20590, 10113, 19248 and 1 more: 4 lines in the file
Meta Audience Network — accounts 340030725, 640581217, com.netbiscuits.bild.android and 1 more: 4 lines in the file
Google AdMob — accounts pub-3428697181958205, pub-8086689738619786, pub-5786819153313314 and 2 more: 5 lines in the file
Index Exchange — accounts 188667, 188479, 188480: 3 lines in the file
InMobi — account ab5f4679c6c9468884113d165e488d46: 2 lines in the file, 270 expected lines missing
OpenX — accounts 539948074, 540038340, 540516264: 3 lines in the file
TripleLift — accounts 5791, 5791-EB, 6353 and 3 more: 6 lines in the file
Mintegral — account 50691: 10 lines in the file, 400 expected lines missing
Display.io — account 2500004: 1 line in the file, 32 expected lines missing
Yango Ads — partner (reseller) lines only: 10 lines in the file, 400 expected lines missing

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

FAQ

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

Yes — https://upday.com/app-ads.txt has 229 lines (checked 19 Oct 2026).

Which ad networks does upday.com work with?

Its app-ads.txt lists Xandr (Microsoft), Amazon Publisher Services, PubMatic, Magnite (Rubicon), Meta Audience Network, Google AdMob, Index Exchange, InMobi, OpenX, TripleLift, Mintegral, Display.io and 1 more.

upday.com app-ads.txt check

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

FAQ

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

Which ad networks does upday.com work with?

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

Other checked domains

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