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.

severex.io app-ads.txt check

severex.io 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. 9,212 lines, 5,572 unique records, 3,615 duplicates, 1 invalid lines, 34 ad networks detected.

Ad networks in severex.io/app-ads.txt

Google AdMob — account pub-1704605618631786: 1 line in the file
TikTok Ad Network (Pangle) — account 5002732: 1 line in the file
Meta Audience Network — account 681650315353674: 1 line in the file
AppLovin — account d959a2a7f26553f56f082ab304ef8f26: 36 lines in the file
Unity Ads — account 1054602: 161 lines in the file
DT Exchange (Fyber) — account 208617: 400 lines in the file
ironSource / LevelPlay — account 132417: 109 lines in the file, 17 expected lines missing
Amazon Publisher Services — account 1118aa86-3237-4ec2-8605-63745bc28f40: 1 line in the file
PubMatic — account 164991: 1 line in the file
InMobi — account dea16e49ce6340e590dca59f93002365: 260 lines in the file, 12 expected lines missing
Liftoff Monetize (Vungle) — account 57c05f735b2bd4fa24000030: 390 lines in the file, 1 expected line missing
Mintegral — account 27793: 400 lines in the file, 5 expected lines missing
Magnite (Rubicon) — accounts 26442, 26440: 2 lines in the file
Verve (PubNative) — account 1008952: 400 lines in the file, 11 expected lines missing
BIGO Ads — account 1050: 400 lines in the file, 15 expected lines missing
Smaato — account 1100056236: 1 line in the file
Bidmachine — accounts 612, 200: 400 lines in the file, 50 expected lines missing
Yango Ads — account 66051405: 400 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — account 122775: 400 lines in the file, 35 expected lines missing
Chartboost — partner (reseller) lines only: 400 lines in the file, 201 expected lines missing
Yandex Ads — partner (reseller) lines only: 165 lines in the file, 3 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 101 lines in the file, 43 expected lines missing
Bidease — partner (reseller) lines only: 40 lines in the file, 9 expected lines missing
BlueSea — partner (reseller) lines only: 24 lines in the file, 13 expected lines missing
Display.io — partner (reseller) lines only: 16 lines in the file, 16 expected lines missing
DSP Exchange — partner (reseller) lines only: 287 lines in the file, 274 expected lines missing
Madex — partner (reseller) lines only: 5 lines in the file, 13 expected lines missing
Monetrix — partner (reseller) lines only: 68 lines in the file, 25 expected lines missing
Prado — partner (reseller) lines only: 21 lines in the file, 6 expected lines missing
HyprMX — partner (reseller) lines only: 231 lines in the file, 138 expected lines missing
Start.io — partner (reseller) lines only: 124 lines in the file, 33 expected lines missing
Kidoz — partner (reseller) lines only: 17 lines in the file, 5 expected lines missing
CAS.ai — partner (reseller) lines only: 165 lines in the file
DSail — partner (reseller) lines only: 165 lines in the file

Invalid lines

b42d42eb28400efa, targetbetter.com, 6451, RESELLER

Corrected file: severex.io app-ads.txt (fixed).

FAQ

Does severex.io have an app-ads.txt?

Yes — https://severex.io/app-ads.txt has 9,212 lines (checked 20 Oct 2026).

Which ad networks does severex.io work with?

Its app-ads.txt lists Google AdMob, TikTok Ad Network (Pangle), Meta Audience Network, AppLovin, Unity Ads, DT Exchange (Fyber), ironSource / LevelPlay, Amazon Publisher Services, PubMatic, InMobi, Liftoff Monetize (Vungle), Mintegral and 22 more.

Is the app-ads.txt of severex.io correct?