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.

circle.gs app-ads.txt check

circle.gs is almost fully optimized: its app-ads.txt has no errors and matches 99.5% of the 1,339 lines its 7 ad networks expect — minor optimisation required: 6 lines are missing.

Checked 21 Oct 2026. 1,707 lines, 1,361 unique records, 315 duplicates, 0 invalid lines, 27 ad networks detected.

Ad networks in circle.gs/app-ads.txt

Google AdMob — account pub-4350430547183016: 1 line in the file
AppLovin — account 590179aaca2fab4647fbf7010bf2e8b1: 36 lines in the file
Unity Ads — account 6111207: 161 lines in the file
Liftoff Monetize (Vungle) — account 6807c7070437920011951c37: 386 lines in the file, 5 expected lines missing
ironSource / LevelPlay — account 584161: 125 lines in the file, 1 expected line missing
Mintegral — account 65684: 400 lines in the file
TikTok Ad Network (Pangle) — account 5034776: 1 line in the file
Chartboost — partner (reseller) lines only: 326 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 119 lines in the file, 152 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 194 lines in the file, 256 expected lines missing
Yandex Ads — partner (reseller) lines only: 80 lines in the file, 88 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 74 lines in the file, 70 expected lines missing
BIGO Ads — partner (reseller) lines only: 259 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 15 lines in the file, 34 expected lines missing
BlueSea — partner (reseller) lines only: 9 lines in the file, 28 expected lines missing
DSP Exchange — partner (reseller) lines only: 137 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 93 lines in the file, 351 expected lines missing
Monetrix — partner (reseller) lines only: 21 lines in the file, 72 expected lines missing
Prado — partner (reseller) lines only: 14 lines in the file, 13 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 290 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 102 lines in the file, 267 expected lines missing
Start.io — partner (reseller) lines only: 36 lines in the file, 121 expected lines missing
Kidoz — partner (reseller) lines only: 13 lines in the file, 9 expected lines missing
CAS.ai — partner (reseller) lines only: 75 lines in the file, 90 expected lines missing
DSail — partner (reseller) lines only: 75 lines in the file, 90 expected lines missing
Bidmachine — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing

Corrected file: circle.gs app-ads.txt (fixed).

FAQ

Does circle.gs have an app-ads.txt?

Yes — https://circle.gs/app-ads.txt has 1,707 lines (checked 21 Oct 2026).

Which ad networks does circle.gs work with?

Its app-ads.txt lists Google AdMob, AppLovin, Unity Ads, Liftoff Monetize (Vungle), ironSource / LevelPlay, Mintegral, TikTok Ad Network (Pangle), Chartboost, InMobi, DT Exchange (Fyber), Yandex Ads, VK Ads (myTarget) and 15 more.

Is the app-ads.txt of circle.gs correct?