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.

brawlhalla.com app-ads.txt check

brawlhalla.com achieves the best ad optimization: its app-ads.txt has no errors and matches what its 8 ad networks expect (100% of 20 lines).

Checked 19 Oct 2026. 267 lines, 242 unique records, 10 duplicates, 0 invalid lines, 17 ad networks detected.

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

Magnite (Rubicon) — accounts 25912, 26024, 13510: 3 lines in the file
Xandr (Microsoft) — accounts 7664, 8233: 2 lines in the file
Amazon Publisher Services — account 70247b00-ff8f-4016-b3ab-8344daf96e09: 1 line in the file
Index Exchange — accounts 183921, 188416, 193067 and 1 more: 4 lines in the file
OpenX — account 540134228: 1 line in the file
PubMatic — accounts 81564, 156538, 165874: 3 lines in the file
Sovrn — accounts 237754, 237754-eb: 2 lines in the file
Yahoo — accounts 55305, 58855, 59435 and 1 more: 4 lines in the file
Mintegral — partner (reseller) lines only: 43 lines in the file, 400 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 15 lines in the file, 375 expected lines missing
Chartboost — partner (reseller) lines only: 18 lines in the file, 400 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 10 lines in the file, 400 expected lines missing
BIGO Ads — partner (reseller) lines only: 18 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 49 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 30 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 12 lines in the file, 357 expected lines missing
Bidmachine — partner (reseller) lines only: 34 lines in the file, 400 expected lines missing

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

FAQ

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

Yes — https://brawlhalla.com/app-ads.txt has 267 lines (checked 19 Oct 2026).

Which ad networks does brawlhalla.com work with?

Its app-ads.txt lists Magnite (Rubicon), Xandr (Microsoft), Amazon Publisher Services, Index Exchange, OpenX, PubMatic, Sovrn, Yahoo, Mintegral, Liftoff Monetize (Vungle), Chartboost, DT Exchange (Fyber) and 5 more.

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