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.

gpxscan.com app-ads.txt check

gpxscan.com 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. 58 lines, 57 unique records, 0 duplicates, 1 invalid lines, 7 ad networks detected.

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

Google AdMob — account pub-9385913464158552: 1 line in the file
TikTok Ad Network (Pangle) — account 34852: 1 line in the file
Mintegral — partner (reseller) lines only: 17 lines in the file, 400 expected lines missing
Chartboost — partner (reseller) lines only: 17 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 31 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 13 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 15 lines in the file, 400 expected lines missing

Invalid lines

83e75a7ae333ca9d

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

FAQ

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

Yes — https://gpxscan.com/app-ads.txt has 58 lines (checked 20 Oct 2026).

Which ad networks does gpxscan.com work with?

Its app-ads.txt lists Google AdMob, TikTok Ad Network (Pangle), Mintegral, Chartboost, Yango Ads, DSP Exchange, Bidmachine.

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