Ad system
threecore.tech
threecore.tech is the domain an ad system uses in app-ads.txt and ads.txt files. 5 apps in our data declare it. Its sellers.json lists 61 sellers.
- Apps declaring it
- 5
- Sellers in sellers.json
- 61
- Lines verified
- 0%
- Lines with errors
- 3
- Avg. supply path score
- 53.0 / 100
5 DIRECT · 0 RESELLER
0% confidential
0 of 3 checked lines
3 lines in total
5 apps scored
Apps and lines are recounted every 10 minutes. The sellers.json breakdown and the directory ranking are as of , recomputed daily. sellers.json last read 5 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 threecore.tech 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.
threecore.tech, YOUR_ACCOUNT_ID, DIRECT
threecore.tech, YOUR_ACCOUNT_ID, RESELLER- Field 1:
threecore.tech, the domain threecore.tech uses in app-ads.txt. - Field 2: your account ID with threecore.tech. It must equal the
seller_idin threecore.tech'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 threecore.tech carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 61
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 5, 2026
- PUBLISHER53
- INTERMEDIARY6
- BOTH2
Cross-check of lines naming threecore.tech
- Verified 0
- Seller ID not found 0
- DIRECT but intermediary 3
- RESELLER but publisher 0
- Seller type BOTH 0
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming threecore.tech is looked up in its sellers.json. What each status means
Common errors with threecore.tech lines
-
DIRECT but intermediary
3 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask threecore.tech to list it as PUBLISHER.
Apps that declare threecore.tech
| App | Store | Relationship | Status |
|---|---|---|---|
| iOS | DIRECT | Live | |
| iOS | DIRECT | Live | |
| iOS | DIRECT | Live | |
| iOS | DIRECT | Live | |
| iOS | DIRECT | Live |
Questions about threecore.tech
How do I add threecore.tech to app-ads.txt?
Add one line for each account threecore.tech gives you: "threecore.tech, YOUR_ACCOUNT_ID, DIRECT". Use DIRECT when you hold the account yourself and RESELLER when a partner holds it and sells your inventory through threecore.tech. The account ID must be the seller_id threecore.tech lists for you in its sellers.json; threecore.tech will give it to you. Put the file at the root of the domain named as your developer website in the App Store and Google Play listings.
Does threecore.tech publish a sellers.json?
Yes. Its file at https://threecore.tech/sellers.json listed 61 sellers when we last read it on 5 October 2026: 53 publishers, 6 intermediaries and 2 listed as both; 0% are confidential.
How many apps declare threecore.tech in app-ads.txt?
5 apps in Stoqlab's data (delisted apps included) declare threecore.tech: 5 with at least one DIRECT line and 0 with at least one RESELLER line, across 3 app-ads.txt files. Counts are recomputed daily.
Why do threecore.tech lines fail verification?
Of 3 lines naming threecore.tech, 3 contradict its sellers.json. The most common case is "DIRECT but intermediary" (3 lines): If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask threecore.tech to list it as PUBLISHER.
What is the difference between DIRECT and RESELLER?
DIRECT means the publisher owns the account; RESELLER means an intermediary sells the inventory on the publisher's behalf. DIRECT lines should match a PUBLISHER entry in the network's sellers.json, RESELLER lines an INTERMEDIARY entry.
Sources: the public app-ads.txt files of tracked apps and the sellers.json of threecore.tech. Something wrong? Tell us.