Christmas Wallpaper
by UltDev · com.mgapp.wall.christmas
Most of the 146 lines in Christmas Wallpaper's app-ads.txt (ultdev-app.com) are RESELLER lines: 142 against 4 DIRECT, across 60 ad systems. 109 of 144 lines checked against sellers.json match; 14 name a seller ID the network does not list, 6 declare the wrong seller type. The file last changed on 5 October 2026; the same file covers 9 apps of this developer.
Christmas Wallpaper shares its app-ads.txt (ultdev-app.com) with Wallpaper 4K (Google Play), whose page carries the full analysis of the file.
Store data
- Rating
- 4.77
- Installs
- 10,000+
- Category
- Art & Design
- Contains ads
- Yes
131 ratings
app-ads.txt
- Domain
- ultdev-app.com
- Status
- Found (200)
- Lines
- 146
- DIRECT / RESELLER
- 4 / 142
- Parse errors
- 0
- Last fetched
- Oct 13, 2026
- Last changed
- Oct 5, 2026
sellers.json cross-check
146 lines checked
Verified
109
Errors
20
Warnings
16
- Seller ID not found 14
- RESELLER but publisher 6
- Seller type BOTH 13
- Confidential seller 2
- No sellers.json 1
- Unchecked 1
Declared supply tree
4 direct accounts across 3 direct sellers · 102 resellers buying from them · 40 not matched
| Direct seller | Accounts | Resold by | Issues |
|---|---|---|---|
| unity.com | 1 | 77 resellers: rubiconproject.com, sharethrough.com, pubmatic.com … | 0 |
| google.com | 2 | — | 0 |
| facebook.com | 1 | — | 0 |
40 resellers, intermediary not matched to a direct seller of this app (the intermediary's domain is not a direct seller of this app: 19; account not found in the ad system's sellers.json: 14; sellers.json lists the account as a publisher, not an intermediary: 6; the ad system publishes no usable sellers.json: 1).
Seller IDs the networks do not list
14 lines of this app-ads.txt name an account ID that the ad system's sellers.json does not contain. Usually a stale line or a typo in the ID. How to fix it
| Line | Ad system | Account ID | Relationship |
|---|---|---|---|
| 12 | app-stock.com | 256917 | RESELLER |
| 16 | inmobi.com | 23d316d3d980453d8ea0dcf9caec4078 | RESELLER |
| 35 | rubiconproject.com | 25064 | RESELLER |
| 58 | criteo.com | b-062019 | RESELLER |
| 67 | media.net | 8cu355vs4 | RESELLER |
| 75 | appnexus.com | 6849 | RESELLER |
| 78 | appnexus.com | 17234 | RESELLER |
| 79 | appnexus.com | 15980 | RESELLER |
| 89 | taurusx.com | 70079 | RESELLER |
| 92 | outbrain.com | 0073fa86cff719c752763d2c3ee52c8f00 | RESELLER |
| 97 | sharethrough.com | 5828-OB | RESELLER |
| 110 | smartadserver.com | 5828-OB | RESELLER |
| 140 | google.com | pub-2923085774557613 | RESELLER |
| 141 | google.com | pub-3990748024667386 | RESELLER |
More apps from UltDev
-
Wallpaper 4K Android
-
Wallpaper Download Android
-
Photo Editor Android
-
Dragon Novels & Images Android
-
Halloween Wallpaper Android
-
Thanksgiving Wallpaper Android
New to these files? What is app-ads.txt · Network directory · Glossary
Last crawled Tue, Oct 13, 2026 3:13 PM. Data derived from the public store listing, the developer's app-ads.txt and the ad systems' sellers.json files.