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.

irishtimes.com app-ads.txt check

irishtimes.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 20 Oct 2026. 337 lines, 280 unique records, 23 duplicates, 0 invalid lines, 15 ad networks detected.

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

Google AdMob — accounts pub-2615941022292182, pub-7357742692072135, pub-7002491002409919 and 6 more: 9 lines in the file
OpenX — accounts 539342223, 540447820, 540847510: 3 lines in the file
PubMatic — accounts 158055, 158090, 156765 and 1 more: 4 lines in the file
Index Exchange — accounts 190500, 189507, 186978 and 1 more: 4 lines in the file
Magnite (Rubicon) — accounts 18680, 21536: 2 lines in the file
Amazon Publisher Services — accounts 6bbeeb6f-714d-47ea-8434-a3c90bec82f4, 6f354287-be81-4032-bf64-3a62262fb72f, f67fb912-2d88-4326-8009-bd2154299562: 3 lines in the file
Xandr (Microsoft) — accounts 2579, 884: 2 lines in the file
Yahoo — account 55774: 1 line in the file
Mintegral — partner (reseller) lines only: 12 lines in the file, 400 expected lines missing
BIGO Ads — partner (reseller) lines only: 14 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 29 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 10 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 13 lines in the file, 400 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 17 lines in the file, 400 expected lines missing

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

FAQ

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

Yes — https://irishtimes.com/app-ads.txt has 337 lines (checked 20 Oct 2026).

Which ad networks does irishtimes.com work with?

Its app-ads.txt lists Google AdMob, OpenX, PubMatic, Index Exchange, Magnite (Rubicon), Amazon Publisher Services, Xandr (Microsoft), Yahoo, Mintegral, BIGO Ads, Yango Ads, DSP Exchange and 3 more.

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