SSP
OneTag
onetag.com
OneTag is an independent sell-side platform.
Most of the 174,637 apps that declare onetag.com reach it through a reseller: 97% have a RESELLER line, 52% a DIRECT one (27,698 files, 18,705 of them through betweendigital.com's account). 31% of the 531,660 lines checked name an account its sellers.json (2,343 sellers) does not list. 28 sellers left its sellers.json in the last 30 days.
- Apps declaring it
- 174,637
- Sellers in sellers.json
- 2,343
- Lines verified
- 61%
- Lines with errors
- 207,438
- Avg. supply path score
- 51.3 / 100
90,247 DIRECT · 170,025 RESELLER
0% confidential
338,313 of 550,800 checked lines
550,800 lines in total
173,637 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 OneTag 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.
onetag.com, YOUR_ACCOUNT_ID, DIRECT
onetag.com, YOUR_ACCOUNT_ID, RESELLER- Field 1:
onetag.com, the domain OneTag uses in app-ads.txt. - Field 2: your account ID with OneTag. It must equal the
seller_idin OneTag'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 onetag.com carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 2,343
- Confidential
- 1 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 28
- Last read
- Oct 13, 2026
- PUBLISHER326
- INTERMEDIARY1,954
- BOTH63
Cross-check of lines naming onetag.com
- Verified 338,313
- Seller ID not found 171,852
- DIRECT but intermediary 28,207
- RESELLER but publisher 7,379
- Seller type BOTH 5,049
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming onetag.com is looked up in its sellers.json. What each status means
Common errors with onetag.com lines
-
Seller ID not found
171,852 lines
Ask OneTag 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.
-
DIRECT but intermediary
28,207 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask OneTag to list it as PUBLISHER.
-
RESELLER but publisher
7,379 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask OneTag why the account is listed as PUBLISHER.
-
Seller type BOTH
5,049 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.
Intermediaries most declared as RESELLER
Accounts on onetag.com 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 |
|---|---|---|
| betweendigital.com | INTERMEDIARY | 18,705 |
| taurusx.com | INTERMEDIARY | 16,879 |
| algorix.co | INTERMEDIARY | 13,397 |
| videoheroes.tv | INTERMEDIARY | 12,311 |
| prequel.tv | INTERMEDIARY | 11,607 |
| adwmg.com | INTERMEDIARY | 10,962 |
| eskimi.com | INTERMEDIARY | 10,932 |
| media.net | INTERMEDIARY | 9,756 |
Apps that declare onetag.com
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about OneTag
Does OneTag publish a sellers.json?
Yes. Its file at https://www.onetag.net/sellers.json listed 2,343 sellers when we last read it on 13 October 2026: 326 publishers, 1,954 intermediaries and 63 listed as both; 0% are confidential.
How many apps declare OneTag in app-ads.txt?
174,637 apps in Stoqlab's data (delisted apps included) declare onetag.com: 90,247 with at least one DIRECT line and 170,025 with at least one RESELLER line, across 27,698 app-ads.txt files, as of 13 October 2026 (recounted daily).
Why do onetag.com lines fail verification?
Of 550,800 lines naming onetag.com, 207,438 contradict its sellers.json. The most common case is "Seller ID not found", on 171,852 lines. Ask OneTag 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.
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 onetag.com. Something wrong? Tell us.