YisouSpider is a bot for the Chinese website Yisou or m.sm.cn. Yisou is probably a company that is selling through aliexpress.com, but employs a bot for unknown reasons. Their main URL has a page dedicated to questions about what they do, but these questions aren?t really answered. Two (translated) quotes from their website are I am neither an application store nor a Baidu, but my way of interaction is more mobile, most understand what you want. I am neither Taobao nor Baidu, but I have the whole network of goods information and the most authentic buyers evaluation, the most worthy of your trust. The entire website is in Chinese.
The Internet of Bots has evaluated YisouSpider against 50 different checkpoints, of which 20 have been confirmed as being positive. These checkpoints evaluate the transparency and occurrence of a bot and don´t necessarily say something about its quality. The BotRank is calculated as [20*2=] 40%. The details of the bot and the BotRank can be seen below. For more information on how the BotRank is made, you can visit the page Botrank.