Ad system
quantumdex.io
quantumdex.io is the domain an ad system uses in app-ads.txt and ads.txt files. 12,706 apps in our data declare it. Its sellers.json lists 2,957 sellers.
- Apps declaring it
- 12,706
- Sellers in sellers.json
- 2,957
- Lines verified
- 0.7%
- Lines with errors
- 977
- Avg. supply path score
- 47.5 / 100
199 DIRECT · 12,679 RESELLER
0% confidential
7 of 984 checked lines
984 lines in total
12,847 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 9 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 quantumdex.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.
quantumdex.io, YOUR_ACCOUNT_ID, DIRECT
quantumdex.io, YOUR_ACCOUNT_ID, RESELLER- Field 1:
quantumdex.io, the domain quantumdex.io uses in app-ads.txt. - Field 2: your account ID with quantumdex.io. It must equal the
seller_idin quantumdex.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 quantumdex.io carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 2,957
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 9, 2026
- PUBLISHER2,803
- INTERMEDIARY154
- BOTH0
Cross-check of lines naming quantumdex.io
- Verified 7
- Seller ID not found 977
- DIRECT but intermediary 0
- RESELLER but publisher 0
- Seller type BOTH 0
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming quantumdex.io is looked up in its sellers.json. What each status means
Common errors with quantumdex.io lines
-
Seller ID not found
977 lines
Ask quantumdex.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 quantumdex.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 |
|---|---|---|
| newormedia.com | INTERMEDIARY | 2 |
Apps that declare quantumdex.io
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT | 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 | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| iOS | RESELLER | Live |
Questions about quantumdex.io
How do I add quantumdex.io to app-ads.txt?
Add one line for each account quantumdex.io gives you: "quantumdex.io, YOUR_ACCOUNT_ID, DIRECT". Use DIRECT when you hold the account yourself and RESELLER when a partner holds it and sells your inventory through quantumdex.io. The account ID must be the seller_id quantumdex.io lists for you in its sellers.json; quantumdex.io 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 quantumdex.io publish a sellers.json?
Yes. Its file at https://quantumdex.io/sellers.json listed 2,957 sellers when we last read it on 9 October 2026: 2,803 publishers, 154 intermediaries and 0 listed as both; 0% are confidential.
How many apps declare quantumdex.io in app-ads.txt?
12,706 apps in Stoqlab's data (delisted apps included) declare quantumdex.io: 199 with at least one DIRECT line and 12,679 with at least one RESELLER line, across 893 app-ads.txt files. Counts are recomputed daily.
Why do quantumdex.io lines fail verification?
Of 984 lines naming quantumdex.io, 977 contradict its sellers.json. The most common case is "Seller ID not found" (977 lines): Ask quantumdex.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.
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 quantumdex.io. Something wrong? Tell us.