Transfermarkt

Transfermarkt covers football transfers, rumours, market values and statistics across competitions worldwide, publishing rankings such as the most valuable players and clubs, contract and free-agent tracking, and market-value updates by league, including Serie A, the Swiss Super League and LaLiga, refreshed throughout each season. The site also runs a forum for reader discussion, betting content, and dedicated sections for player agents, including agent support and statistics tools.

Its ads.txt file lists 181 ad systems, of which 68 are sold directly, with sales houses including Seedtag Advertising SL and WebAds BV also involved.