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.

canberratimes.com.au app-ads.txt check

canberratimes.com.au is missing out on higher CPMs: its app-ads.txt has 2 invalid lines. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 20 Oct 2026. 399 lines, 389 unique records, 1 duplicates, 2 invalid lines, 15 ad networks detected.

Ad networks in canberratimes.com.au/app-ads.txt

Google AdMob — accounts pub-7888676654047393, pub-4900384784953086, pub-8027655917349410 and 2 more: 5 lines in the file
Index Exchange — accounts 186432, 188362, 186905: 3 lines in the file
Magnite (Rubicon) — accounts 19530, 19528, 20100 and 2 more: 5 lines in the file
Xandr (Microsoft) — account 8219: 1 line in the file
PubMatic — accounts 159744, 159745: 2 lines in the file
Sovrn — accounts 236010, 236010-eb: 2 lines in the file
Yahoo — accounts 55017, 58722: 2 lines in the file
OpenX — account 540634628: 1 line in the file
Mintegral — partner (reseller) lines only: 18 lines in the file, 400 expected lines missing
Chartboost — partner (reseller) lines only: 10 lines in the file, 400 expected lines missing
BIGO Ads — partner (reseller) lines only: 13 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: 12 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 11 lines in the file, 400 expected lines missing
Bidmachine — partner (reseller) lines only: 16 lines in the file, 400 expected lines missing

Invalid lines

appnexus.com, 2025, DIRECT appnexus.com, 2011, RESELLER
50b1c356f2c5c8fc pubmatic.com, 160065, RESELLER, 5d62403b186f2ace

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

FAQ

Does canberratimes.com.au have an app-ads.txt?

Yes — https://canberratimes.com.au/app-ads.txt has 399 lines (checked 20 Oct 2026).

Which ad networks does canberratimes.com.au work with?

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

Is the app-ads.txt of canberratimes.com.au correct?