App Supply Index Monitor my app
iOS · Letterboxd Ltd

Letterboxd

Developer URL
https://letterboxd.com/apps/
app-ads.txt
https://letterboxd.com/app-ads.txt · 200
Checked
Oct 7, 2026
C
62/100

1,430 lines · 1,102 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

DIRECT lines inconsistent with public data

76 −25 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 (25 of 76) 
line 34     google.com, pub-8143212237299826, DIRECT, f08c47fec0942fa0
             → observed: the same account is marked DIRECT by 6 different companies  name in sellers.json: Tellmewow Studios S.L.
line 35     google.com, pub-5812357352335075, DIRECT, f08c47fec0942fa0
             → observed: the same account is marked DIRECT by 10 different companies  name in sellers.json: Playwire Media  domain in sellers.json: playwire.com
line 38     google.com, pub-7152441034374786, DIRECT, f08c47fec0942fa0
             → observed: the same account is marked DIRECT by 6 different companies
line 41     aps.amazon.com,d66f8965-e8d8-4296-86b1-fde3ee7c1b74,DIRECT
             → observed: the same account is marked DIRECT by 8 different companies  name in sellers.json: Playwire  domain in sellers.json: playwire.com
line 44     indexexchange.com,587993,DIRECT,50b1c356f2c5c8fc
             → observed: the same account is marked DIRECT by 7 different companies
line 45     triplelift.com,3222,DIRECT,6c33edb13117fd86
             → observed: the same account is marked DIRECT by 8 different companies
line 47     sharethrough.com,836e302e,DIRECT,d53b998a7bd4ecd2
             → observed: sellers.json lists the account as INTERMEDIARY; the same account is marked DIRECT by 7 different companies  name in sellers.json: Playwire - TAM (DNU)  domain in sellers.json: playwire.com
line 48     themediagrid.com,KA3Q45,DIRECT
             → observed: the same account is marked DIRECT by 8 different companies
line 51     verve.com,2177205,DIRECT
             → observed: the same account is marked DIRECT by 6 different companies
line 54     media.net,8CU4G0VV3,DIRECT
             → observed: sellers.json lists the account as INTERMEDIARY; the same account is marked DIRECT by 7 different companies  name in sellers.json: Playwire, LLC  domain in sellers.json: playwire.com
line 65     sovrn.com,230297,DIRECT,fafdf38b16bf6b2b
             → observed: the same account is marked DIRECT by 9 different companies
line 66     lijit.com,230297,DIRECT,fafdf38b16bf6b2b
             → observed: sellers.json lists the account as INTERMEDIARY; the same account is marked DIRECT by 9 different companies  name in sellers.json: Playwire LLC  domain in sellers.json: playwire.com
line 71     smaato.com,0,DIRECT,07bcf65f187117b4
             → observed: the same account is marked DIRECT by 6 different companies
line 74     applovin.com, 16febeab1bb6c49aea052352269e9334, DIRECT
             → observed: the same account is marked DIRECT by 8 different companies
line 92     appnexus.com, 7140, DIRECT, f5ab79cb980f11d1
             → observed: the same account is marked DIRECT by 10 different companies
line 93     xandr.com, 13080, DIRECT
             → observed: the same account is marked DIRECT by 8 different companies
line 96     betweendigital.com, 44634, DIRECT
             → observed: sellers.json lists the account as INTERMEDIARY; the same account is marked DIRECT by 8 different companies  name in sellers.json: Playwire LLC  domain in sellers.json: playwire.com
line 105    loopme.com, 14062, DIRECT, 6c8d5f95897a5a3b
             → observed: the same account is marked DIRECT by 5 different companies
line 110    chartboost.com, 60196c4bc0d66007ec2cef9a, DIRECT
             → observed: the same account is marked DIRECT by 8 different companies
line 567    blis.com, 1223, DIRECT, 61453ae19a4b73f4
             → observed: the same account is marked DIRECT by 6 different companies  name in sellers.json: Playwire  domain in sellers.json: playwire.com
line 570    conversantmedia.com, 40510, DIRECT, 03113cd04947736d
             → observed: sellers.json lists the account as INTERMEDIARY; the same account is marked DIRECT by 8 different companies  name in sellers.json: Playwire Media  domain in sellers.json: playwire.com
line 592    fyber.com,214161,DIRECT
             → observed: the same account is marked DIRECT by 8 different companies  name in sellers.json: Playwire  domain in sellers.json: playwire.com
line 731    indexexchange.com, 186779, DIRECT, 50b1c356f2c5c8fc
             → observed: the same account is marked DIRECT by 10 different companies
line 732    indexexchange.com, 186266, DIRECT, 50b1c356f2c5c8fc
             → observed: the same account is marked DIRECT by 10 different companies
line 733    indexexchange.com, 193336, DIRECT, 50b1c356f2c5c8fc
             → observed: the same account is marked DIRECT by 9 different companies
warning

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

153 −11 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 153) 
line 38     google.com, pub-7152441034374786, DIRECT, f08c47fec0942fa0
             → sellers_json: https://realtimebidding.google.com/sellers.json
line 45     triplelift.com,3222,DIRECT,6c33edb13117fd86
             → sellers_json: https://triplelift.com/sellers.json
line 48     themediagrid.com,KA3Q45,DIRECT
             → sellers_json: https://themediagrid.com/sellers.json
line 49     improvedigital.com,2050,RESELLER
             → sellers_json: https://improvedigital.com/sellers.json
line 51     verve.com,2177205,DIRECT
             → sellers_json: https://verve.com/sellers.json
line 53     start.io,uam,RESELLER
             → sellers_json: https://start.io/sellers.json
line 57     risecodes.com,63832beef8189a00015cb6d3,RESELLER
             → sellers_json: https://risecodes.com/sellers.json
line 64     connectad.io,455,RESELLER,85ac85a30c93b3e5
             → sellers_json: https://connectad.io/sellers.json
line 68     opera.com,pub12058951686464,RESELLER,55a0c5fd61378de3
             → sellers_json: https://opera.com/sellers.json
line 71     smaato.com,0,DIRECT,07bcf65f187117b4
             → sellers_json: https://smaato.com/sellers.json
line 74     applovin.com, 16febeab1bb6c49aea052352269e9334, DIRECT
             → sellers_json: https://applovin.com/sellers.json
line 93     xandr.com, 13080, DIRECT
             → sellers_json: https://xandr.com/sellers.json
line 97     pubmatic.com, 159668, RESELLER, 5d62403b186f2ace
             → sellers_json: https://pubmatic.com/sellers.json
line 118    improvedigital.com, 1366, RESELLER
             → sellers_json: https://improvedigital.com/sellers.json
line 131    e-planning.net, bce51a8513581788, RESELLER, c1ba615865ed87b2
             → sellers_json: https://e-planning.net/sellers.json
line 136    admanmedia.com, 894, RESELLER
             → sellers_json: https://admanmedia.com/sellers.json
line 145    adview.com, 33633363, RESELLER, 1b2cc038a11ea319
             → sellers_json: https://adview.com/sellers.json
line 150    advlion.com, 584, RESELLER
             → sellers_json: https://advlion.com/sellers.json
line 151    advlion.com, 3083, RESELLER
             → sellers_json: https://advlion.com/sellers.json
line 152    advlion.com, 3054, RESELLER
             → sellers_json: https://advlion.com/sellers.json
line 162    thunder-monetize.com, 6025417180, RESELLER
             → sellers_json: https://thunder-monetize.com/sellers.json
line 163    rhebus.works, 3852728940, RESELLER
             → sellers_json: https://rhebus.works/sellers.json
line 174    themediagrid.com, R28I9J, RESELLER, 35d5010d7789b49d
             → sellers_json: https://themediagrid.com/sellers.json
line 189    omnifytv.com, pqsCoRfJvb9DYRGE, RESELLER
             → sellers_json: https://omnifytv.com/sellers.json
line 190    myfeature.tv, WUK6VDvHBmA6l3PToPJK, RESELLER
             → sellers_json: https://myfeature.tv/sellers.json
warning

Lines for ad system domains that don't resolve

1 −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 (1) 
line 121    spotxchange.com, 234183, RESELLER, 7842df1d2fe2db34
             → ad_system: spotxchange.com
info

Duplicate lines

8 −1 pts

Harmless but a sign of copy-paste maintenance.

How to fixRemove duplicates; keep one copy of each line.
Evidence (8) 
ad_system: themediagrid.com  seller_id: ka3q45  relationship: DIRECT
ad_system: inmobi.com  seller_id: 79b5caeef5114b618a16266b6c552933  relationship: RESELLER
ad_system: inmobi.com  seller_id: 9e311c7a68e94888aac7fbb4272381e2  relationship: RESELLER
ad_system: verve.com  seller_id: 15503  relationship: RESELLER
ad_system: onetag.com  seller_id: 8668c16092f01e8  relationship: RESELLER
ad_system: smartadserver.com  seller_id: 3713  relationship: RESELLER
ad_system: rubiconproject.com  seller_id: 15278  relationship: RESELLER
ad_system: smartadserver.com  seller_id: 3117  relationship: RESELLER
info

Ad systems without a public sellers.json

190

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 190) 
line 42     vungle.com,A9_UAM,RESELLER
             → sellers_json: HTTP 403
line 43     adcolony.com,44ef7fd4adebf701,RESELLER,1ad675c9de6b5176
             → sellers_json: HTML or login page instead of JSON
line 65     sovrn.com,230297,DIRECT,fafdf38b16bf6b2b
             → sellers_json: HTTP 403
line 76     gamaigroup.com, 423056, RESELLER
             → sellers_json: HTML or login page instead of JSON
line 78     loopme.com, 11303, RESELLER, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403
line 79     loopme.com, 11424, RESELLER, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403
line 81     openx.com, 540785403, RESELLER, 6a698e2ec38604c6
             → sellers_json: HTTP 403
line 82     openx.com, 559798512, RESELLER, 6a698e2ec38604c6
             → sellers_json: HTTP 403
line 92     appnexus.com, 7140, DIRECT, f5ab79cb980f11d1
             → sellers_json: HTTP 403
line 105    loopme.com, 14062, DIRECT, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403
line 111    appnexus.com, 10005, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403
line 113    mobfox.com, 82593, RESELLER, 5529a3d1f59865be
             → sellers_json: HTTP 403
line 114    openx.com, 540338069, RESELLER, 6a698e2ec38604c6
             → sellers_json: HTTP 403
line 117    adcolony.com, 1efc6603710003ea, RESELLER, 1ad675c9de6b5176
             → sellers_json: HTML or login page instead of JSON
line 126    xad.com, 589, RESELLER, 81cbf0a75a5e0e9a
             → sellers_json: HTTP 403
line 147    loopme.com, 11446, RESELLER, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403
line 156    freewheel.tv, 1568906, RESELLER
             → sellers_json: HTTP 403
line 157    freewheel.tv, 1568907, RESELLER
             → sellers_json: HTTP 403
line 168    criteo.com, B-063105, RESELLER, 9fac4a4a87c2a44f
             → sellers_json: HTTP 403
line 170    freewheel.tv, 1235183, RESELLER
             → sellers_json: HTTP 403
line 171    freewheel.tv, 1235279, RESELLER
             → sellers_json: HTTP 403
line 176    loopme.com, 11561, RESELLER, 6c8d5f95897a5a3b
             → sellers_json: HTTP 403
line 179    freewheel.tv, 1585279, RESELLER
             → sellers_json: HTTP 403
line 194    freewheel.tv, 1601349, RESELLER
             → sellers_json: HTTP 403
line 203    appnexus.com, 12622, RESELLER, f5ab79cb980f11d1
             → sellers_json: HTTP 403

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