Stoqlab

Ad system

system1.com

All 6 apps that declare system1.com hold a DIRECT account with it (3 app-ads.txt files). 67% of the 3 lines checked name an account its sellers.json (4 sellers) does not list.

Check an app-ads.txt Open in dashboard
Apps declaring it
6

6 DIRECT · 0 RESELLER

Sellers in sellers.json
4

0% confidential

Lines verified
33%

1 of 3 checked lines

Lines with errors
2

3 lines in total

Avg. supply path score
58.0 / 100

6 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 8 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 system1.com 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.

system1.com, YOUR_ACCOUNT_ID, DIRECT
system1.com, YOUR_ACCOUNT_ID, RESELLER
  • Field 1: system1.com, the domain system1.com uses in app-ads.txt.
  • Field 2: your account ID with system1.com. It must equal the seller_id in system1.com'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 system1.com carry none, or different ones, so we do not suggest one.

sellers.json at a glance

Status
Published
Sellers listed
4
Confidential
0 (0%)
Passthrough
0
Removed, last 30 days
0
Last read
Oct 8, 2026
  • PUBLISHER4
  • INTERMEDIARY0
  • BOTH0

Cross-check of lines naming system1.com

  • Verified 1
  • Seller ID not found 2
  • DIRECT but intermediary 0
  • RESELLER but publisher 0
  • Seller type BOTH 0
  • Confidential seller 0
  • No sellers.json 0
  • Unchecked 0

Every line naming system1.com is looked up in its sellers.json. What each status means

Common errors with system1.com lines

  • Seller ID not found 2 lines

    Ask system1.com 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.

Common app-ads.txt errors and how to fix them

Apps that declare system1.com

AppStoreRelationshipStatus
iHeart: Music, Radio, Podcasts iHeart: Music, Radio, Podcasts
 Android DIRECT Live
iHeart: Radio, Music, Podcasts iHeart: Radio, Music, Podcasts
 iOS DIRECT Live
iHeartRadio Family iHeartRadio Family
 iOS DIRECT Live
Popular Science Popular Science
 iOS DIRECT Live
iHeartRadio iHeartRadio
 iOS DIRECT Live
iHeartMedia Advertising iHeartMedia Advertising
 iOS DIRECT Live

Questions about system1.com

Does system1.com publish a sellers.json?

Yes. Its file at https://system1.com/sellers.json listed 4 sellers when we last read it on 8 October 2026: 4 publishers, 0 intermediaries and 0 listed as both; 0% are confidential.

How many apps declare system1.com in app-ads.txt?

6 apps in Stoqlab's data (delisted apps included) declare system1.com: 6 with at least one DIRECT line and 0 with at least one RESELLER line, across 3 app-ads.txt files, as of 11 October 2026 (recounted daily).

Why do system1.com lines fail verification?

Of 3 lines naming system1.com, 2 contradict its sellers.json. The most common case is "Seller ID not found", on 2 lines. Ask system1.com 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 system1.com. Something wrong? Tell us.