Ad system
nextmillennium.io
nextmillennium.io is the domain an ad system uses in app-ads.txt and ads.txt files. 52,450 apps in our data declare it. Its sellers.json lists 608 sellers.
- Apps declaring it
- 52,450
- Sellers in sellers.json
- 608
- Lines verified
- 16%
- Lines with errors
- 16,072
- Avg. supply path score
- 50.1 / 100
12,380 DIRECT · 50,988 RESELLER
0% confidential
3,868 of 24,237 checked lines
24,237 lines in total
53,363 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 nextmillennium.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.
nextmillennium.io, YOUR_ACCOUNT_ID, DIRECT, 65bd090fa4a1e3d6
nextmillennium.io, YOUR_ACCOUNT_ID, RESELLER, 65bd090fa4a1e3d6- Field 1:
nextmillennium.io, the domain nextmillennium.io uses in app-ads.txt. - Field 2: your account ID with nextmillennium.io. It must equal the
seller_idin nextmillennium.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):
65bd090fa4a1e3d6, the certification authority ID on 60% of the lines naming nextmillennium.io.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 608
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 9, 2026
- PUBLISHER598
- INTERMEDIARY9
- BOTH1
Cross-check of lines naming nextmillennium.io
- Verified 3,868
- Seller ID not found 341
- DIRECT but intermediary 117
- RESELLER but publisher 15,614
- Seller type BOTH 4,297
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming nextmillennium.io is looked up in its sellers.json. What each status means
Common errors with nextmillennium.io lines
-
RESELLER but publisher
15,614 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask nextmillennium.io why the account is listed as PUBLISHER.
-
Seller type BOTH
4,297 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.
-
Seller ID not found
341 lines
Ask nextmillennium.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.
-
DIRECT but intermediary
117 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask nextmillennium.io to list it as PUBLISHER.
Intermediaries most declared as RESELLER
Accounts on nextmillennium.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 |
|---|---|---|
| smaato.com | INTERMEDIARY | 1,230 |
| playdigo.com | INTERMEDIARY | 455 |
| pubnative.com | INTERMEDIARY | 191 |
| stnvideo.com | INTERMEDIARY | 188 |
| thesportsdrop.com | INTERMEDIARY | 120 |
| audiomob.com | INTERMEDIARY | 88 |
Apps that declare nextmillennium.io
| App | Store | Relationship | Status |
|---|---|---|---|
| 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 | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about nextmillennium.io
How do I add nextmillennium.io to app-ads.txt?
Add one line for each account nextmillennium.io gives you: "nextmillennium.io, YOUR_ACCOUNT_ID, DIRECT, 65bd090fa4a1e3d6". Use DIRECT when you hold the account yourself and RESELLER when a partner holds it and sells your inventory through nextmillennium.io. The account ID must be the seller_id nextmillennium.io lists for you in its sellers.json; nextmillennium.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 nextmillennium.io publish a sellers.json?
Yes. Its file at https://wp.nextmillennium.io/sellers.json listed 608 sellers when we last read it on 9 October 2026: 598 publishers, 9 intermediaries and 1 listed as both; 0% are confidential.
How many apps declare nextmillennium.io in app-ads.txt?
52,450 apps in Stoqlab's data (delisted apps included) declare nextmillennium.io: 12,380 with at least one DIRECT line and 50,988 with at least one RESELLER line, across 5,878 app-ads.txt files. Counts are recomputed daily.
What is the certification authority ID for nextmillennium.io?
60% of the app-ads.txt lines naming nextmillennium.io carry "65bd090fa4a1e3d6" in the fourth field. The field is optional; the IAB Tech Lab ads.txt 1.1 specification says identifiers in sellers.json supersede it, so a missing or different value does not make a line invalid.
Why do nextmillennium.io lines fail verification?
Of 24,237 lines naming nextmillennium.io, 16,072 contradict its sellers.json. The most common case is "RESELLER but publisher" (15,614 lines): If the account is yours, declare it DIRECT. If a partner holds it, ask nextmillennium.io why the account is listed 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 nextmillennium.io. Something wrong? Tell us.