# Xianyu

> Analysis by Optimly for Optimly AI Visibility, in the Optimly AI Brand Index. Last analyzed August 30, 2026.

> 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.

- Business Profile: https://optimly.ai/brand/xianyu
- Publisher: Optimly (https://optimly.ai)
- Dataset: Optimly AI Brand Index (https://optimly.ai/brand)
- Official website: https://alibabagroup.com/
- Logo: https://logo.clearbit.com/alibabagroup.com
- Slug: xianyu
- Category: Online Resale Marketplaces
- Last Analyzed: August 30, 2026