Blackjack Showdown: 21 Duel
by Cubeage · com.cubeage.blackjack.app
Most of the 431 lines in Blackjack Showdown: 21 Duel's app-ads.txt (cubeage.com) are RESELLER lines: 413 against 18 DIRECT, across 121 ad systems. 124 of the 413 lines checked name a seller ID the network's sellers.json does not list, so buyers that check drop those paths. The file last changed on 4 October 2026; the same file covers 17 apps of this developer.
Blackjack Showdown: 21 Duel shares its app-ads.txt (cubeage.com) with Fun Big 2: Card Battle Royale (Google Play), whose page carries the full analysis of the file.
Store data
- Rating
- 4.61
- Installs
- 50,000+
- Category
- Card
- Contains ads
- No
990 ratings
Offers in-app purchases
app-ads.txt
- Domain
- cubeage.com
- Status
- Found (200)
- Lines
- 431
- DIRECT / RESELLER
- 18 / 413
- Parse errors
- 119
- Last fetched
- Oct 12, 2026
- Last changed
- Oct 4, 2026
sellers.json cross-check
431 lines checked
Verified
225
Errors
156
Warnings
35
- Seller ID not found 124
- DIRECT but intermediary 3
- RESELLER but publisher 29
- Seller type BOTH 31
- Confidential seller 1
- No sellers.json 3
- Unchecked 15
Declared supply tree
18 direct accounts across 15 direct sellers · 211 resellers buying from them · 202 not matched
| Direct seller | Accounts | Resold by | Issues |
|---|---|---|---|
| unity.com | 1 | 66 resellers: pubmatic.com, rubiconproject.com, lijit.com … | 0 |
| bidmachine.io | 1 | 26 resellers: pubnative.net, pubmatic.com, xandr.com … | 1 |
| ironsrc.com | 1 | 26 resellers: rubiconproject.com, openx.com, smartadserver.com … | 0 |
| google.com | 4 | 5 resellers: pubmatic.com, smartadserver.com, media.net … | 2 |
| smartadserver.com | 1 | 2 resellers: rubiconproject.com, pubmatic.com | 0 |
| appodeal.com | 1 | 1 reseller: inmobi.com | 1 |
| orangeclickmedia.com | 1 | 1 reseller: smartadserver.com | 1 |
| video.unrulymedia.com | 1 | 1 reseller: rubiconproject.com | 1 |
| adform.com | 1 | — | 0 |
| galaxyx-tech.com | 1 | — | 1 |
| improvedigital.com | 1 | — | 0 |
| lacunads.com | 1 | — | 1 |
| + 3 more direct sellers in the full tree | |||
202 resellers, intermediary not matched to a direct seller of this app (account not found in the ad system's sellers.json: 116; the intermediary's domain is not a direct seller of this app: 38; sellers.json lists the account as a publisher, not an intermediary: 29; the ad system publishes no usable sellers.json: 3; not cross-checked yet: 15; the seller is confidential in sellers.json: 1).
Seller IDs the networks do not list
124 lines of this app-ads.txt name an account ID that the ad system's sellers.json does not contain; the first 15 in file order. Usually a stale line or a typo in the ID. How to fix it
| Line | Ad system | Account ID | Relationship |
|---|---|---|---|
| 10 | onlinemediasolutions.com | 23120 | RESELLER |
| 18 | openx.com | 540861995 | RESELLER |
| 19 | thunder-monetize.com | 3962740416 | RESELLER |
| 20 | blueseasx.com | 232670 | RESELLER |
| 21 | improvedigital.com | 2276 | RESELLER |
| 22 | improvedigital.com | 2343 | RESELLER |
| 34 | video.unrulymedia.com | 123476257 | RESELLER |
| 38 | video.unrulymedia.com | 6111915185540403805 | RESELLER |
| 44 | inmobi.com | edd282ac8f29464792bf2b7f3df2f9df | RESELLER |
| 62 | outbrain.com | 0023749a2264ea0429a71b54ac9ca0de9a | RESELLER |
| 63 | outbrain.com | 00ab8f68679cc060c8bbc1035e70030614 | RESELLER |
| 80 | contextweb.com | 562791 | RESELLER |
| 81 | contextweb.com | 563217 | RESELLER |
| 82 | contextweb.com | 563265 | RESELLER |
| 83 | google.com | pub-3990748024667386 | RESELLER |
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New to these files? What is app-ads.txt · Network directory · Glossary
Last crawled Wed, Oct 7, 2026 5:59 AM. Data derived from the public store listing, the developer's app-ads.txt and the ad systems' sellers.json files.