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.

centurygames.com app-ads.txt check

centurygames.com is missing out on higher CPMs: its app-ads.txt has 12 invalid lines and lists only 5,252 of the 7,999 lines its 26 ad networks expect (34% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 21 Oct 2026. 6,040 lines, 4,070 unique records, 1,876 duplicates, 12 invalid lines, 39 ad networks detected.

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

Google AdMob — accounts pub-8451717056497276, pub-3940256099942544, pub-7279990999620104 and 1 more: 4 lines in the file
Meta Audience Network — account 2145607585758643: 1 line in the file
ironSource / LevelPlay — accounts 267285, 253715: 82 lines in the file, 45 expected lines missing
Unity Ads — account 1024984: 91 lines in the file, 70 expected lines missing
Vungle — account 561e8d946b8d90f61a001853: 356 lines in the file, 4 expected lines missing
AppLovin — accounts 339649f270048e67ef06c3d028f3d73a, 8598fd8301541965d8df1e9e64451859, 8d96748c46fc55fcbde611cb95dc3f3d and 3 more: 41 lines in the file
TikTok Ad Network (Pangle) — accounts 33829, 9898: 2 lines in the file
Chartboost — account 5ae154d8e2a7a20c1b9472c8: 400 lines in the file, 188 expected lines missing
PubMatic — accounts 160565, 162223, 159856 and 3 more: 6 lines in the file
Mintegral — account 25430: 400 lines in the file, 276 expected lines missing
DT Exchange (Fyber) — accounts 209960, 210383: 400 lines in the file, 48 expected lines missing
Smaato — accounts 1100052848, 1100055927, 1100055953 and 1 more: 4 lines in the file
InMobi — accounts cba6ec3467bc4e20af8ec55d51aa6a36, cb6a6239dfec478f818c1ffca00ca440, 0bcefe84e4c14d889610880dddc06a04 and 1 more: 155 lines in the file, 120 expected lines missing
Magnite (Rubicon) — account 27830: 1 line in the file
TripleLift — accounts 7677, 6998, 14146: 3 lines in the file
Xandr (Microsoft) — account 280: 1 line in the file
Amazon Publisher Services — accounts d9d6ab5d-f78f-4167-8b5d-393940028e4d, f453e023-cfb0-4eb7-af86-26a3ae10577b: 2 lines in the file
Verve (PubNative) — accounts 1007600, 1007799, 1008411 and 3 more: 400 lines in the file, 400 expected lines missing
MobileFuse — account 4499: 1 line in the file
Bidmachine — accounts 543, 543-4: 400 lines in the file, 400 expected lines missing
Sovrn — accounts 411915, 563477, 594162 and 4 more: 7 lines in the file
Maticoo (zMaticoo) — account 5135063: 210 lines in the file, 235 expected lines missing
OpenX — accounts 563905670, 564921063: 2 lines in the file
CAS.ai — account b5a73ae1: 130 lines in the file, 35 expected lines missing
BlueSea — account 204037: 23 lines in the file, 15 expected lines missing
Start.io — accounts 117514417, 196115903: 101 lines in the file, 58 expected lines missing
Yandex Ads — partner (reseller) lines only: 134 lines in the file, 34 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 94 lines in the file, 50 expected lines missing
BIGO Ads — partner (reseller) lines only: 400 lines in the file, 361 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 32 lines in the file, 17 expected lines missing
Display.io — partner (reseller) lines only: 10 lines in the file, 22 expected lines missing
DSP Exchange — partner (reseller) lines only: 370 lines in the file, 191 expected lines missing
Madex — partner (reseller) lines only: 5 lines in the file, 13 expected lines missing
Monetrix — partner (reseller) lines only: 46 lines in the file, 47 expected lines missing
Prado — partner (reseller) lines only: 11 lines in the file, 16 expected lines missing
HyprMX — partner (reseller) lines only: 218 lines in the file, 151 expected lines missing
Kidoz — partner (reseller) lines only: 8 lines in the file, 14 expected lines missing
DSail — partner (reseller) lines only: 130 lines in the file, 35 expected lines missing

Invalid lines

smartyads.com,100149,RESELLER,fd2bde0ff2e62c5d xandr.com,10128,RESELLER,f5ab79cb980f11d1 opera.com,pub8613009987200,RESELLER,55a0c5fd61378de3 digitalpiee.com,161159,RESELLER hyperad.tech,172,RESELLER
brightcom.com,29556,RESELLER digitalpiee.com,161159,RESELLER
disqus.com,998,RESELLER freewheel.tv,1600180,RESELLER
hyperad.tech,172,RESELLER inmobi.com,38e36193f3c944d0b6254c71e511041b,RESELLER,83e75a7ae333ca9d lacunads.com,LCc6b8b1c8aca38e6f,DIRECT pubnative.net,1007475,RESELLER,d641df8625486a7b pubwise.io,523246
pubnative.net,1007475,RESELLER,d641df8625486a7b rhebus.works,9176497567,RESELLER
Applovin13
video.unrulymedia.com, 脙鈥 1876793108340587286, RESELLER
smartadserver.com, <4199>-OB, RESELLER, 060d053dcf45cbf3
smartadserver.com, <4199>, RESELLER, 060d053dcf45cbf3
a4g.com,脙鈥 13874, DIRECT
smaato.com,App-ads.txt ID Required,DIRECT,07bcf65f187117b4
lemmatechnologies,1844,RESELLER

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

FAQ

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

Yes — https://centurygames.com/app-ads.txt has 6,040 lines (checked 21 Oct 2026).

Which ad networks does centurygames.com work with?

Its app-ads.txt lists Google AdMob, Meta Audience Network, ironSource / LevelPlay, Unity Ads, Vungle, AppLovin, TikTok Ad Network (Pangle), Chartboost, PubMatic, Mintegral, DT Exchange (Fyber), Smaato and 27 more.

centurygames.com app-ads.txt check

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

Invalid lines

FAQ

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

Which ad networks does centurygames.com work with?

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

Other checked domains

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