The website has disallow rules for Sogou Bot.
https://www.sogou.com/
Robots.txt
Get access to data on 16,118,592 websites Sogou Bot Disallow Customers. We know of 6,566,763 live websites using Sogou Bot Disallow and an additional 9,551,829 sites that used Sogou Bot Disallow historically and 3,570,912 websites in the United States.
Get a list of 16,118,592 websites using Sogou Bot Disallow which includes location information, hosting data, contact details, 6,566,763 currently live websites and an additional 329,556 domains that redirect to sites in this list. 9,551,829 sites that used this technology previouslyand 3,570,912 websites in the United States currently using Sogou Bot Disallow.
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