Ad system
display.io
Most of the 111,778 apps that declare display.io reach it through a reseller: 100% have a RESELLER line, 12% a DIRECT one (16,497 files, 8,854 of them through opera.com's account). Of 63,711 lines checked against its sellers.json (245 sellers), 36% match, 0.2% name an unlisted account and 11% declare the wrong seller type.
- Apps declaring it
- 111,778
- Sellers in sellers.json
- 245
- Lines verified
- 36%
- Lines with errors
- 7,434
- Avg. supply path score
- 50.9 / 100
13,042 DIRECT · 111,281 RESELLER
0% confidential
23,896 of 67,119 checked lines
67,119 lines in total
116,942 apps scored
App counts, the sellers.json breakdown and the directory ranking are as of , recomputed daily (the same numbers as the directory). Line counts are recounted every 10 minutes. sellers.json last read 13 October 2026. The supply path score sums up how short and clean the declared paths are, 0 to 100 (how it is computed).
How to add display.io to app-ads.txt
One line per account, in the app-ads.txt at the root of the domain your App Store and Google Play listings name as the developer website.
display.io, YOUR_ACCOUNT_ID, DIRECT
display.io, YOUR_ACCOUNT_ID, RESELLER- Field 1:
display.io, the domain display.io uses in app-ads.txt. - Field 2: your account ID with display.io. It must equal the
seller_idin display.io's sellers.json. - Field 3: DIRECT if you hold the account, RESELLER if a partner holds it and sells your inventory. DIRECT vs RESELLER
- Field 4 (optional): a certification authority ID. Most lines naming display.io carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 245
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 13, 2026
- PUBLISHER203
- INTERMEDIARY22
- BOTH20
Cross-check of lines naming display.io
- Verified 23,896
- Seller ID not found 138
- DIRECT but intermediary 206
- RESELLER but publisher 7,090
- Seller type BOTH 35,789
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming display.io is looked up in its sellers.json. What each status means
Common errors with display.io lines
-
Seller type BOTH
35,789 lines
The account is listed as BOTH, so sellers.json alone cannot tell a buyer which relationship applies. Nothing to fix on your side; buyers usually look at the seller's domain.
-
RESELLER but publisher
7,090 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask display.io why the account is listed as PUBLISHER.
-
DIRECT but intermediary
206 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask display.io to list it as PUBLISHER.
-
Seller ID not found
138 lines
Ask display.io for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
Intermediaries most declared as RESELLER
Accounts on display.io that its sellers.json lists as INTERMEDIARY or BOTH, by the number of app-ads.txt files declaring them. Confidential sellers are left out.
| Seller domain | Type | Files |
|---|---|---|
| opera.com | BOTH | 8,854 |
| toponad.com | BOTH | 8,117 |
| bidease.com | INTERMEDIARY | 7,889 |
| yandex.com | BOTH | 7,626 |
| pubeasy.io | INTERMEDIARY | 4,601 |
| bidnex.com | BOTH | 2,637 |
| bidmachine.io | BOTH | 2,605 |
| vungle.com | BOTH | 2,287 |
Apps that declare display.io
| App | Store | Relationship | Status |
|---|---|---|---|
| iOS | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about display.io
Does display.io publish a sellers.json?
Yes. Its file at https://www.display.io/sellers.json listed 245 sellers when we last read it on 13 October 2026: 203 publishers, 22 intermediaries and 20 listed as both; 0% are confidential.
How many apps declare display.io in app-ads.txt?
111,778 apps in Stoqlab's data (delisted apps included) declare display.io: 13,042 with at least one DIRECT line and 111,281 with at least one RESELLER line, across 16,497 app-ads.txt files, as of 13 October 2026 (recounted daily).
Why do display.io lines fail verification?
Of 67,119 lines naming display.io, 7,434 contradict its sellers.json. The most common case is "RESELLER but publisher", on 7,090 lines. If the account is yours, declare it DIRECT. If a partner holds it, ask display.io why the account is listed as PUBLISHER.
Not sure whether your line should say DIRECT or RESELLER? DIRECT vs RESELLER in app-ads.txt
Sources: the public app-ads.txt files of tracked apps and the sellers.json of display.io. Something wrong? Tell us.