RukiCrawler is a bot for an unknown website. The bot does provide the link http://ruki.rezko.net, but this results in an empty page. Opening rezko.net gives strange results as well. It is fully unknown what this bot is or does and it is best to steer clear from Rezko.
The Internet of Bots has evaluated RukiCrawler against 50 different checkpoints, of which 13 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 [13*2=] 26%. 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.