letterboxd.com app-ads.txt check

letterboxd.com is missing out on higher CPMs: its app-ads.txt has 1 invalid line and lists only 1,825 of the 3,398 lines its 20 ad networks expect (46% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 20 Oct 2026. 1,524 lines, 1,424 unique records, 8 duplicates, 1 invalid lines, 37 ad networks detected.

Ad networks in letterboxd.com/app-ads.txt

• Google AdMob — accounts pub-8143212237299826, pub-5812357352335075, pub-7152441034374786: 3 lines in the file
• Amazon Publisher Services — account d66f8965-e8d8-4296-86b1-fde3ee7c1b74: 1 line in the file
• Index Exchange — accounts 587993, 186779, 186266 and 1 more: 4 lines in the file
• TripleLift — accounts 3222, 6644, 6732 and 11 more: 14 lines in the file
• Sovrn — account 230297: 1 line in the file
• AppLovin — account 16febeab1bb6c49aea052352269e9334: 34 lines in the file, 2 expected lines missing
• Xandr (Microsoft) — account 7140: 1 line in the file
• Chartboost — account 60196c4bc0d66007ec2cef9a: 400 lines in the file, 42 expected lines missing
• DT Exchange (Fyber) — account 214161: 218 lines in the file, 233 expected lines missing
• InMobi — account 6801ebe3b36d4afba25f67b2d0e9d9ed: 80 lines in the file, 192 expected lines missing
• ironSource / LevelPlay — account 316842: 65 lines in the file, 61 expected lines missing
• Meta Audience Network — account 1034812811017991: 1 line in the file
• OpenX — accounts 537145215, 542511403, 543969731 and 2 more: 5 lines in the file
• Ogury — account 77858990-0b64-4485-b9e2-0a660eac712d: 10 lines in the file, 8 expected lines missing
• TikTok Ad Network (Pangle) — account 5005849: 1 line in the file
• PubMatic — accounts 158326, 159344, 166946: 3 lines in the file
• Magnite (Rubicon) — accounts 12556, 18110, 27232: 3 lines in the file
• Verve (PubNative) — account 1017334: 323 lines in the file, 400 expected lines missing
• Smaato — accounts 1100059863, 1100048728: 2 lines in the file
• Vungle — account 5f3d310a8421a5001528b750: 333 lines in the file, 27 expected lines missing
• Mintegral — partner (reseller) lines only: 381 lines in the file, 400 expected lines missing
• Unity Ads — partner (reseller) lines only: 51 lines in the file, 109 expected lines missing
• Yandex Ads — partner (reseller) lines only: 61 lines in the file, 107 expected lines missing
• VK Ads (myTarget) — partner (reseller) lines only: 58 lines in the file, 86 expected lines missing
• BIGO Ads — partner (reseller) lines only: 236 lines in the file, 400 expected lines missing
• Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
• Bidease — partner (reseller) lines only: 12 lines in the file, 37 expected lines missing
• DSP Exchange — partner (reseller) lines only: 148 lines in the file, 400 expected lines missing
• Maticoo (zMaticoo) — partner (reseller) lines only: 62 lines in the file, 382 expected lines missing
• Monetrix — partner (reseller) lines only: 14 lines in the file, 79 expected lines missing
• Prado — partner (reseller) lines only: 8 lines in the file, 19 expected lines missing
• HyprMX — partner (reseller) lines only: 139 lines in the file, 230 expected lines missing
• Start.io — partner (reseller) lines only: 24 lines in the file, 133 expected lines missing
• Kidoz — partner (reseller) lines only: 5 lines in the file, 17 expected lines missing
• CAS.ai — partner (reseller) lines only: 55 lines in the file, 110 expected lines missing
• DSail — partner (reseller) lines only: 55 lines in the file, 110 expected lines missing
• Bidmachine — partner (reseller) lines only: 369 lines in the file, 400 expected lines missing

Invalid lines

• smaato.com,0,DIRECT,07bcf65f187117b4

Corrected file: letterboxd.com app-ads.txt (fixed).

FAQ

Does letterboxd.com have an app-ads.txt?

Yes — https://letterboxd.com/app-ads.txt has 1,524 lines (checked 20 Oct 2026).

Which ad networks does letterboxd.com work with?

Its app-ads.txt lists Google AdMob, Amazon Publisher Services, Index Exchange, TripleLift, Sovrn, AppLovin, Xandr (Microsoft), Chartboost, DT Exchange (Fyber), InMobi, ironSource / LevelPlay, Meta Audience Network and 25 more.

Is the app-ads.txt of letterboxd.com correct?

letterboxd.com is missing out on higher CPMs: its app-ads.txt has 1 invalid line and lists only 1,825 of the 3,398 lines its 20 ad networks expect (46% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

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