Analysis by Optimly for Optimly AI Visibility, in the Optimly AI Brand Index. This Business Profile tracks the Brand Authority Index and supporting AI visibility evidence. Last analyzed August 30, 2026.
Xianyu is a company within the Online Resale Marketplaces category. Xianyu, also known as Idle Fish, is China's largest consumer-to-consumer (C2C) community and marketplace for second-hand and idle goods. Founded in 2014, it has expanded to empower users to share skills, interests, and experiences, offering services like product recycling, authentication, user ratings, and a community forum called 'Seafood Market'. It also quantifies carbon reduction for every transaction, promoting sustainable consumption.
Xianyu was founded in 2014.
Xianyu's core products are C2C marketplace for second-hand goods, idle product transactions, product recycling services, authentication services, user rating system, community forum..
Xianyu uses Not specified, typically transaction-based or free with optional premium features..
Xianyu serves Chinese consumers, particularly the young, engaging in buying, selling, and sharing second-hand items, skills, and experiences..
Xianyu China's largest C2C second-hand marketplace and lifestyle community; offers comprehensive services including recycling and authentication; quantifies carbon reduction per transaction for sustainability.
Official website: https://alibabagroup.com/
Last analyzed: August 30, 2026
This Business Profile is published by Optimly in the Optimly AI Brand Index, a public research dataset showing how AI systems describe brands, categories, and competitors. Optimly AI Visibility analyzes sampled buyer-intent responses, cited sources, and public brand information. The Brand Authority Index summarizes answer presence, narrative accuracy, and owned citations where sufficient evidence is available.
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