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.

greenstreamltd.co.uk app-ads.txt check

greenstreamltd.co.uk 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. 104 lines, 80 unique records, 1 duplicates, 1 invalid lines, 15 ad networks detected.

Ad networks in greenstreamltd.co.uk/app-ads.txt

Google AdMob — account pub-9896413738985644: 1 line in the file
Mintegral — partner (reseller) lines only: 27 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 12 lines in the file, 148 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 18 lines in the file, 372 expected lines missing
Chartboost — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing
InMobi — partner (reseller) lines only: 13 lines in the file, 258 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 21 lines in the file, 400 expected lines missing
Yandex Ads — partner (reseller) lines only: 11 lines in the file, 157 expected lines missing
BIGO Ads — partner (reseller) lines only: 28 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 44 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 14 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 25 lines in the file, 400 expected lines missing
CAS.ai — partner (reseller) lines only: 12 lines in the file, 153 expected lines missing
DSail — partner (reseller) lines only: 12 lines in the file, 153 expected lines missing
Bidmachine — partner (reseller) lines only: 45 lines in the file, 400 expected lines missing

Invalid lines

trustedstack, TSTKQ5827, RESELLER

Corrected file: greenstreamltd.co.uk app-ads.txt (fixed).

FAQ

Does greenstreamltd.co.uk have an app-ads.txt?

Yes — https://greenstreamltd.co.uk/app-ads.txt has 104 lines (checked 20 Oct 2026).

Which ad networks does greenstreamltd.co.uk work with?

Its app-ads.txt lists Google AdMob, Mintegral, Unity Ads, Liftoff Monetize (Vungle), Chartboost, InMobi, DT Exchange (Fyber), Yandex Ads, BIGO Ads, Yango Ads, Maticoo (zMaticoo), Verve (PubNative) and 3 more.

Is the app-ads.txt of greenstreamltd.co.uk correct?