Android · Sonos, Inc

Sonos

Developer URL: https://support.sonos.com/
app-ads.txt: https://www.sonos.com/app-ads.txt · 200
Checked: Oct 7, 2026

81/100

63 lines · 29 verified against sellers.json

Findings

Each finding lists the exact lines involved. Findings are automated observations of public files as of Oct 7, 2026. They describe file contents, not the intent or conduct of any company.

warning

Seller IDs not listed in the ad system's sellers.json

2 −6 pts

The ad system's current sellers.json doesn't list these accounts, so buyers that validate the chain can't match them. Common causes are closed accounts or former partners.

How to fixAsk each partner whether the account is still active and request their current lines; remove lines for closed accounts.

Evidence (2)

line 18     targetspot.com, 144, RESELLER, feb28ed826dcf532
             → sellers_json: https://targetspot.com/sellers.json
line 68     amperwave.net, adan10003, RESELLER
             → sellers_json: https://amperwave.net/sellers.json

warning

DIRECT lines inconsistent with public data

1 −3 pts

The ads.txt specification defines DIRECT as an account the publisher directly controls. For these lines, either the ad system's own sellers.json lists the account as INTERMEDIARY, or the same account is marked DIRECT in the files of 3 or more unrelated companies. Either way, the public data does not support the DIRECT label. Buyers that use DIRECT labels in supply-path decisions may treat these lines differently.

How to fixUse DIRECT only for accounts your company controls. Confirm with each partner whether the account is yours; if it isn't, the specification calls for RESELLER.

Evidence (1)

line 44     rubiconproject.com,26232,DIRECT, 0bfd66d529a55807
             → observed: sellers.json lists the account as INTERMEDIARY  name in sellers.json: Google  domain in sellers.json: google.com

info

DIRECT accounts registered to another domain

9 −8 pts

Allowed when the domain belongs to the same company; add OWNERDOMAIN to make that explicit. Otherwise these accounts may belong to someone else.

How to fixIf the account is yours under another domain, declare it with OWNERDOMAIN=<that domain>; otherwise mark it RESELLER.

Evidence (9)

line 35     smartadserver.com, 400, DIRECT, 060d053dcf45cbf3
             → domain in sellers.json: deezer.com  name in sellers.json: Deezer
line 36     rubiconproject.com,9973,DIRECT, 0bfd66d529a55807
             → domain in sellers.json: deezer-brandsolutions.com  name in sellers.json: DEEZER S.A.
line 37     google.com, pub-4770306737042736,DIRECT,f08c47fec0942fa0
             → domain in sellers.json: deezer.com  name in sellers.json: DEEZER FRANCE
line 38     tritondigital.com, 3353, DIRECT, 19b4454d0b87b58b
             → domain in sellers.json: deezer.com  name in sellers.json: DEEZER S.A.
line 42     smartclip.net, 13107, DIRECT
             → domain in sellers.json: deezer.com  name in sellers.json: Deezer S.A.
line 47     targetspot.com, 379, DIRECT, feb28ed826dcf532
             → domain in sellers.json: deezer.com  name in sellers.json: Deezer Brazil
line 48     improvedigital.com, 2174_379, DIRECT
             → domain in sellers.json: deezer.com  name in sellers.json: Deezer Brazil
line 49     improvedigital.com, 2588, DIRECT
             → domain in sellers.json: deezer.com  name in sellers.json: Deezer
line 67     amperwave.net, 782, DIRECT
             → domain in sellers.json: audacy.com  name in sellers.json: Audacy

info

Duplicate lines

6 −2 pts

Harmless but a sign of copy-paste maintenance.

How to fixRemove duplicates; keep one copy of each line.

Evidence (6)

ad_system: appnexus.com  seller_id: 7265  relationship: RESELLER
ad_system: rubiconproject.com  seller_id: 9753  relationship: RESELLER
ad_system: rubiconproject.com  seller_id: 16418  relationship: RESELLER
ad_system: tritondigital.com  seller_id: 44733  relationship: RESELLER
ad_system: adswizz.com  seller_id: 172  relationship: RESELLER
ad_system: rubiconproject.com  seller_id: 7562  relationship: RESELLER

info

Ad systems without a public sellers.json

The ad system doesn't publish a readable sellers.json, so nobody can verify these lines. That's the ad system's gap, not the app's, so no points are deducted.

How to fixAsk the partner to publish sellers.json; until then buyers can't verify that path.

Evidence (5)

line 12     appnexus.com, 1577, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403
line 13     appnexus.com, 6924, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403
line 14     appnexus.com, 7265, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403
line 46     appnexus.com, 15873, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403
line 54     appnexus.com, 7265, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403

Is this your app?

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