YisouSpider

The crawler for Shenma, the mobile search engine behind UC and Quark. Shenma's webmaster guide names yisouspider as its user agent.

What happens if you block it

Your site may drop out of Shenma search. Alibaba doesn't say whether Quark or Qwen use this index.

Our take

Keep it if you want mobile search traffic in China.

robots.txt

To block it:

User-agent: YisouSpider
Disallow: /

To allow it explicitly (useful when a wider rule blocks other bots):

User-agent: YisouSpider
Allow: /

The operator's own words

神马搜索的爬虫user agent是yisouspider神马搜索（阿里） documentation, checked 2026-11-02

robots.txt allows it, but is it really getting through?

A firewall or CDN rule can reject YisouSpider even when robots.txt welcomes it, and nothing in your CMS shows it. Our check sends a live request as YisouSpider alongside a normal browser and a Googlebot control, so a bot-verification rule isn't mistaken for a block.