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Android · Castbox.FM - Radio & Podcast & AudioBooks

Podcast Player - Castbox

Developer URL
https://castbox.fm
app-ads.txt
https://castbox.fm/app-ads.txt · 200
Checked
Oct 7, 2026
B
89/100

4,690 lines · 3,451 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

350 −8 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 (25 of 350) 
line 18     rubiconproject.com, 27474, DIRECT, 0bfd66d529a55807
             → sellers_json: https://rubiconproject.com/sellers.json
line 43     pangleglobal.com, 5003536, DIRECT
             → sellers_json: https://pangleglobal.com/sellers.json
line 44     pangleglobal.com, 5025689, DIRECT
             → sellers_json: https://pangleglobal.com/sellers.json
line 168    onetag.com, 59aa7be4921bac8, RESELLER
             → sellers_json: https://onetag.com/sellers.json
line 174    zmaticoo.com, 113149, RESELLER
             → sellers_json: https://zmaticoo.com/sellers.json
line 199    rubiconproject.com, 26168, RESELLER, 0bfd66d529a55807
             → sellers_json: https://rubiconproject.com/sellers.json
line 203    mindtos.com, mt45eb5f865ce39e1b, RESELLER
             → sellers_json: https://mindtos.com/sellers.json
line 272    taurusx.com, 70079, RESELLER
             → sellers_json: https://taurusx.com/sellers.json
line 313    google.com, pub-2923085774557613, RESELLER, f08c47fec0942fa0
             → sellers_json: https://realtimebidding.google.com/sellers.json
line 316    google.com, pub-3990748024667386, RESELLER, f08c47fec0942fa0
             → sellers_json: https://realtimebidding.google.com/sellers.json
line 326    rubiconproject.com, 25064, RESELLER, 0bfd66d529a55807
             → sellers_json: https://rubiconproject.com/sellers.json
line 342    media.net, 8CU675N41, RESELLER
             → sellers_json: https://media.net/sellers.json
line 344    app-stock.com, 256917, RESELLER, ed8c126ea5971415
             → sellers_json: https://app-stock.com/sellers.json
line 353    media.net, 8cu355vs4, RESELLER
             → sellers_json: https://media.net/sellers.json
line 373    sharethrough.com, 5828-OB, RESELLER, d53b998a7bd4ecd2
             → sellers_json: https://sharethrough.com/sellers.json
line 406    triplelift.com, 95054, RESELLER, 6c33edb13117fd86
             → sellers_json: https://triplelift.com/sellers.json
line 410    improvedigital.com, 2050, RESELLER
             → sellers_json: https://improvedigital.com/sellers.json
line 411    sonobi.com, 24f603762e, RESELLER, d1a215d9eb5aee9e
             → sellers_json: https://sonobi.com/sellers.json
line 413    start.io, uam, RESELLER
             → sellers_json: https://start.io/sellers.json
line 422    connectad.io, 455, RESELLER, 85ac85a30c93b3e5
             → sellers_json: https://connectad.io/sellers.json
line 522    carliba.io, 184101, RESELLER
             → sellers_json: https://carliba.io/sellers.json
line 810    video.unrulymedia.com, 667989109, RESELLER, 98c21ef9a666c68b
             → sellers_json: https://video.unrulymedia.com/sellers.json
line 840    pubmatic.com, 161218, RESELLER, 5d62403b186f2ace
             → sellers_json: https://pubmatic.com/sellers.json
line 842    pubmatic.com, 158723, RESELLER, 5d62403b186f2ace
             → sellers_json: https://pubmatic.com/sellers.json
line 848    onetag.com, 77cc0899358027b, RESELLER
             → sellers_json: https://onetag.com/sellers.json
warning

Lines for ad system domains that don't resolve

12 −1 pts

These ad system domains don't resolve (the domain may be retired, merged or misspelled). The lines can't be validated, and if the domain is registered again, its new holder would appear authorized.

How to fixRemove these lines. If the domain is registered again, its new holder would appear authorized by your file.
Evidence (12) 
line 851    engagebdr.com, 16, RESELLER
             → ad_system: engagebdr.com
line 936    gamoshi.io, 267-b3609, RESELLER, 20e30b2ae1f670f2
             → ad_system: gamoshi.io
line 1356   gamoshi.io, 267-b2713, RESELLER, 20e30b2ae1f670f2
             → ad_system: gamoshi.io
line 2562   showcaesad.com, 806322774, RESELLER
             → ad_system: showcaesad.com
line 2710   antipodesdigital.live, 321, RESELLER
             → ad_system: antipodesdigital.live
line 2910   gamoshi.io, 267-b6449, RESELLER, 20e30b2ae1f670f2
             → ad_system: gamoshi.io
line 2938   acex.adprime.com, AJxF6R93a9M6CaTvK, RESELLER
             → ad_system: acex.adprime.com
line 4399   engagebdr.com, 10181, RESELLER
             → ad_system: engagebdr.com
line 4409   engagebdr.com, 10423, RESELLER
             → ad_system: engagebdr.com
line 4433   engagebdr.com, 10252, RESELLER
             → ad_system: engagebdr.com
line 4447   districtm.io, 101649, RESELLER, 3fd707be9c4527c3
             → ad_system: districtm.io
line 4555   ylhglobal.com, 1930587443, RESELLER
             → ad_system: ylhglobal.com
info

Duplicate lines

80 −1 pts

Harmless but a sign of copy-paste maintenance.

How to fixRemove duplicates; keep one copy of each line.
Evidence (25 of 80) 
ad_system: themediagrid.com  seller_id: a6cwlo  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 475093422  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 389957698  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 657436911  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 905340553  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 290726769  relationship: RESELLER
ad_system: themediagrid.com  seller_id: falino  relationship: RESELLER
ad_system: themediagrid.com  seller_id: 8zrkbe  relationship: RESELLER
ad_system: themediagrid.com  seller_id: a8x5s7  relationship: RESELLER
ad_system: themediagrid.com  seller_id: b8n9yh  relationship: RESELLER
ad_system: themediagrid.com  seller_id: nc7lxt  relationship: RESELLER
ad_system: themediagrid.com  seller_id: swh94x  relationship: RESELLER
ad_system: themediagrid.com  seller_id: zg1dbn  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 1659706078112225929  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 170071695  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 2099898025  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 2736329702851206590  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 2743945877  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 390525644  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 476748946  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 586616193  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 649652654350370180  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 667989109  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 739131256  relationship: RESELLER
ad_system: video.unrulymedia.com  seller_id: 848837292  relationship: RESELLER
info

DIRECT accounts registered to another domain

7 −1 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 (7) 
line 33     themediagrid.com, ATDWB6, DIRECT, 9fac4a4a87c2a44f
             → domain in sellers.json: gurunetwork.in  name in sellers.json: Guru Network Limited
line 55     algorix.co, 60250, DIRECT, 5b394c12fea27a1d
             → domain in sellers.json: fungame.studio  name in sellers.json: GURU GAME
line 65     premiumads.net, 20404, DIRECT
             → domain in sellers.json: seek.thebetter.ai  name in sellers.json: Guru Network Limited
line 66     premiumads.com.br, 20404, DIRECT
             → domain in sellers.json: seek.thebetter.ai  name in sellers.json: Guru Network Limited
line 67     g-global.net, 20404, DIRECT
             → domain in sellers.json: seek.thebetter.ai  name in sellers.json: Guru Network Limited
line 68     a4g.com, 14305, DIRECT
             → domain in sellers.json: gurugame.fun  name in sellers.json: Guru Network Limited
line 115    start.io, 180336707, DIRECT
             → domain in sellers.json: fungame.studio  name in sellers.json: Guru Network Limited
info

Ad systems without a public sellers.json

867

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 (25 of 867) 
line 6      facebook.com, 567302250107310, DIRECT, c3e20eee3f780d68
             → sellers_json: returns a web page, not a sellers.json file
line 7      facebook.com, 878069502320638, DIRECT, c3e20eee3f780d68
             → sellers_json: returns a web page, not a sellers.json file
line 15     pubnative.net, 1008045, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 16     ogury.com, 6c5903f5-be0a-4f76-a100-c6ebfc92cb9f, DIRECT
             → sellers_json: HTTP 403 to automated requests
line 21     vungle.com, 5e96c1b29704720015d9f4ae, DIRECT, c107d686becd2d77
             → sellers_json: HTTP 403 to automated requests
line 35     smaato.com, 1100026898, DIRECT, 07bcf65f187117b4
             → sellers_json: HTTP 403 to automated requests
line 39     loopme.com, 14023, DIRECT, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403 to automated requests
line 49     openx.com, 560680791, DIRECT, 6a698e2ec38604c6
             → sellers_json: HTTP 403 to automated requests
line 53     pubnative.net, 1009207, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 54     loopme.com, 12786, DIRECT, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403 to automated requests
line 98     smartadserver.com, 3306, DIRECT, 060d053dcf45cbf3
             → sellers_json: HTTP 404
line 104    openx.com, 540848007, DIRECT, 6a698e2ec38604c6
             → sellers_json: HTTP 403 to automated requests
line 105    verve.com, drorkbqtloh, DIRECT
             → sellers_json: HTTP 403 to automated requests
line 106    loopme.com, 11440, DIRECT, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403 to automated requests
line 107    verve.com, 1907591, DIRECT
             → sellers_json: HTTP 403 to automated requests
line 109    smaato.com, 1100044506, DIRECT, 07bcf65f187117b4
             → sellers_json: HTTP 403 to automated requests
line 114    pubnative.net, 1007790, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 118    pubnative.net, 1007931, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 119    pubnative.net, 1008130, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 120    pubnative.net, 1009262, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 121    pubnative.net, 1005742, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 122    pubnative.net, 1007659, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 123    pubnative.net, 1009259, DIRECT, d641df8625486a7b
             → sellers_json: HTTP 403 to automated requests
line 124    smaato.com, 1100058152, DIRECT, 07bcf65f187117b4
             → sellers_json: HTTP 403 to automated requests
line 125    smaato.com, 1100055910, DIRECT, 07bcf65f187117b4
             → sellers_json: HTTP 403 to automated requests
info

DIRECT accounts marked confidential

1

Buyers can't see who owns these accounts.

How to fixAsk the ad system to publish your seller entry with name and domain.
Evidence (1) 
line 36     ssp.cadent.com, 2683, DIRECT, 1e1d41537f7cad7f

Is this your app?

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