opamarketplace.com (opamarketplace.com) — ad network

Website: opamarketplace.com

opamarketplace.com is an advertising system that app publishers list in their app-ads.txt as “opamarketplace.com”. 674 checked publishers list it (222 with a DIRECT account, 549 through resellers). Its sellers.json lists 567 sellers: 546 publishers, 3 intermediaries, 18 both (1 confidential).

sellers.json

Read 21 Oct 2026 from https://s.opamarketplace.com/opamarketplace.com/sellers.json. Its sellers.json lists 567 sellers: 546 publishers, 3 intermediaries, 18 both (1 confidential). We read it weekly to verify the seller accounts in publishers’ app-ads.txt files.

Of the 154 opamarketplace.com seller IDs we have seen in checked app-ads.txt files, 121 are in this sellers.json and 33 are not.

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