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.

bubblecitys.com app-ads.txt check

bubblecitys.com is missing out on higher CPMs: its app-ads.txt has 4 invalid lines and lists only 5,817 of the 7,679 lines its 20 ad networks expect (24% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 4,560 lines, 4,311 unique records, 245 duplicates, 4 invalid lines, 34 ad networks detected.

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

BlueSea — account 204037: 25 lines in the file, 13 expected lines missing
Sovrn — accounts 411915, 563477, 594162 and 4 more: 7 lines in the file
Google AdMob — account pub-2481262564731491: 1 line in the file
Magnite (Rubicon) — accounts 26980, 166535, 26442 and 3 more: 6 lines in the file
TripleLift — accounts 6998, 14146: 2 lines in the file
InMobi — accounts ddb41d8a9f434a918d05a0fc9999d9f9, 674dfcbcbb944f5fac351b2e00b6fd46, 1a043536afd84fccb23934cf69e88500: 206 lines in the file, 68 expected lines missing
Yandex Ads — account 308192157: 156 lines in the file, 13 expected lines missing
CAS.ai — accounts babe9c54, b5a73ae1: 145 lines in the file, 20 expected lines missing
AppLovin — account 9894b0914475b72d1a9d40228a267dbc: 36 lines in the file
Maticoo (zMaticoo) — account 5135063: 256 lines in the file, 189 expected lines missing
Vungle — account 675a48a209fe2d0011d3f656: 353 lines in the file, 7 expected lines missing
OpenX — accounts 564921063, 563905670: 2 lines in the file
Bidmachine — accounts 200, 918, 887: 400 lines in the file, 61 expected lines missing
DT Exchange (Fyber) — account 218660: 367 lines in the file, 84 expected lines missing
Smaato — accounts 1100047725, 1100054605: 2 lines in the file
Unity Ads — account 1137069: 104 lines in the file, 57 expected lines missing
PubMatic — account 95054: 1 line in the file
Start.io — account 117514417: 86 lines in the file, 72 expected lines missing
Yango Ads — account 308192157: 400 lines in the file, 400 expected lines missing
ironSource / LevelPlay — account 219795: 84 lines in the file, 42 expected lines missing
Mintegral — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Chartboost — partner (reseller) lines only: 400 lines in the file, 275 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 80 lines in the file, 64 expected lines missing
BIGO Ads — partner (reseller) lines only: 400 lines in the file, 315 expected lines missing
Bidease — partner (reseller) lines only: 32 lines in the file, 17 expected lines missing
Display.io — partner (reseller) lines only: 16 lines in the file, 16 expected lines missing
DSP Exchange — partner (reseller) lines only: 248 lines in the file, 313 expected lines missing
Madex — partner (reseller) lines only: 6 lines in the file, 12 expected lines missing
Monetrix — partner (reseller) lines only: 58 lines in the file, 35 expected lines missing
Prado — partner (reseller) lines only: 11 lines in the file, 16 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 182 lines in the file, 187 expected lines missing
Kidoz — partner (reseller) lines only: 8 lines in the file, 14 expected lines missing
DSail — partner (reseller) lines only: 145 lines in the file, 20 expected lines missing

Invalid lines

e-planning.net,2f3a04630ba9ba3f,RESELLER,RESELLER,c1ba615865ed87b2
lemmatechnologies,1844,RESELLER
onetag.com, 67c71bd96716ca3 RESELLER
sharethrough.com, Fjkl1tSU, RESELLER, d53b998a7bd4ecd2 // ORTB

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

FAQ

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

Yes — https://bubblecitys.com/app-ads.txt has 4,560 lines (checked 19 Oct 2026).

Which ad networks does bubblecitys.com work with?

Its app-ads.txt lists BlueSea, Sovrn, Google AdMob, Magnite (Rubicon), TripleLift, InMobi, Yandex Ads, CAS.ai, AppLovin, Maticoo (zMaticoo), Vungle, OpenX and 22 more.

bubblecitys.com app-ads.txt check

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

Invalid lines

FAQ

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

Which ad networks does bubblecitys.com work with?

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

Other checked domains

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