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.

mysterytag.com app-ads.txt check

mysterytag.com is missing out on higher CPMs: its app-ads.txt has 10 invalid lines. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 8,418 lines, 5,407 unique records, 2,842 duplicates, 10 invalid lines, 39 ad networks detected.

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

AppLovin — account 4144aa6b0edeab424a746ab2a2346d2f: 36 lines in the file
Google AdMob — account pub-6367565106353853: 1 line in the file
Meta Audience Network — accounts 2689655531102737, 805069172997110, 1081332032712445 and 1 more: 4 lines in the file
Mintegral — account 38763: 400 lines in the file, 19 expected lines missing
Liftoff Monetize (Vungle) — account 5a996538ca3f7d5c2700c112: 387 lines in the file, 4 expected lines missing
DT Exchange (Fyber) — account 213991: 400 lines in the file, 7 expected lines missing
Bidmachine — account 457: 400 lines in the file, 68 expected lines missing
Verve (PubNative) — account 1016935: 400 lines in the file, 400 expected lines missing
Start.io — account 163241862: 125 lines in the file, 33 expected lines missing
BIGO Ads — account 23166204: 400 lines in the file, 1 expected line missing
Criteo — account B-066465: 1 line in the file
OpenX — account 559912325: 1 line in the file
TikTok Ad Network (Pangle) — account 34551: 1 line in the file
InMobi — accounts 54aec1511fa9415ea3e6f9d868f59b0c, cb6a6239dfec478f818c1ffca00ca440: 260 lines in the file, 13 expected lines missing
ironSource / LevelPlay — account 193397: 109 lines in the file, 17 expected lines missing
Chartboost — account 61af64114f945b07bac50661: 400 lines in the file, 1 expected line missing
Unity Ads — account 13513: 159 lines in the file, 2 expected lines missing
Xandr (Microsoft) — accounts 9726, 12252: 2 lines in the file
Amazon Publisher Services — account 42df5c79-9a6a-4118-b46f-dd311cf16fb8: 1 line in the file
Ogury — account 5bbe7af9-d51f-499e-a804-db54798d96f4: 11 lines in the file, 7 expected lines missing
PubMatic — accounts 165874, 161831: 2 lines in the file
Smaato — accounts 1100048585, 1100054974: 2 lines in the file
TripleLift — accounts 13041, 13686, 13686-EB: 3 lines in the file
Sovrn — account 595809: 1 line in the file
Yandex Ads — partner (reseller) lines only: 150 lines in the file, 18 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 93 lines in the file, 51 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 39 lines in the file, 10 expected lines missing
BlueSea — partner (reseller) lines only: 23 lines in the file, 14 expected lines missing
Display.io — partner (reseller) lines only: 12 lines in the file, 20 expected lines missing
DSP Exchange — partner (reseller) lines only: 331 lines in the file, 230 expected lines missing
Madex — partner (reseller) lines only: 8 lines in the file, 10 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 283 lines in the file, 161 expected lines missing
Monetrix — partner (reseller) lines only: 64 lines in the file, 29 expected lines missing
Prado — partner (reseller) lines only: 17 lines in the file, 10 expected lines missing
HyprMX — partner (reseller) lines only: 218 lines in the file, 151 expected lines missing
Kidoz — partner (reseller) lines only: 13 lines in the file, 9 expected lines missing
CAS.ai — partner (reseller) lines only: 141 lines in the file, 24 expected lines missing
DSail — partner (reseller) lines only: 141 lines in the file, 24 expected lines missing

Invalid lines

Last update: 13.10.2026
- add: BIGO Ads
- replace: InMobi
- replace: BidMachine
- add: Liftoff Monetize
- replace: AppLovin
- Facebook apps updated
b42d42eb28400efa, targetbetter.com, 6451, RESELLER
rubiconproject.com, 15854, RESELLER 0bfd66d529a55807
facebook.com, 151613086

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

FAQ

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

Yes — https://mysterytag.com/app-ads.txt has 8,418 lines (checked 20 Oct 2026).

Which ad networks does mysterytag.com work with?

Its app-ads.txt lists AppLovin, Google AdMob, Meta Audience Network, Mintegral, Liftoff Monetize (Vungle), DT Exchange (Fyber), Bidmachine, Verve (PubNative), Start.io, BIGO Ads, Criteo, OpenX and 27 more.

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