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.

bejbej.ca app-ads.txt check

bejbej.ca achieves the best ad optimization: its app-ads.txt has no errors and matches what its 6 ad networks expect (100% of 7 lines).

Checked 20 Oct 2026. 94 lines, 57 unique records, 3 duplicates, 0 invalid lines, 11 ad networks detected.

Ad networks in bejbej.ca/app-ads.txt

Google AdMob — account pub-3309619446067005: 1 line in the file
Amazon Publisher Services — accounts 14064392, ac378e9c-f9d5-477f-8d17-f803cf932048: 2 lines in the file
Meta Audience Network — account 552352658458971: 1 line in the file
PubMatic — account 159856: 1 line in the file
Index Exchange — account 194702: 1 line in the file
OpenX — account 544042791: 1 line in the file
BIGO Ads — partner (reseller) lines only: 11 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 18 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 15 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 19 lines in the file, 400 expected lines missing

Corrected file: bejbej.ca app-ads.txt (fixed).

FAQ

Does bejbej.ca have an app-ads.txt?

Yes — https://bejbej.ca/app-ads.txt has 94 lines (checked 20 Oct 2026).

Which ad networks does bejbej.ca work with?

Its app-ads.txt lists Google AdMob, Amazon Publisher Services, Meta Audience Network, PubMatic, Index Exchange, OpenX, BIGO Ads, Yango Ads, DSP Exchange, Maticoo (zMaticoo), Bidmachine.

Is the app-ads.txt of bejbej.ca correct?