fout.jp (fout.jp) — ad network

Website: fout.jp

fout.jp is an advertising system that app publishers list in their app-ads.txt as “fout.jp”. 53 checked publishers list it (22 with a DIRECT account, 33 through resellers). Its sellers.json lists 453 sellers: 429 publishers, 23 intermediaries, 1 both.

sellers.json

Read 21 Oct 2026 from https://assets.rfp.fout.jp/sellers.json. Its sellers.json lists 453 sellers: 429 publishers, 23 intermediaries, 1 both. We read it weekly to verify the seller accounts in publishers’ app-ads.txt files.

Of the 18 fout.jp seller IDs we have seen in checked app-ads.txt files, 13 are in this sellers.json and 5 are not.

Publishers that list fout.jp

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