Note According to RFC 9309 standard (2.2.1), this user-agent name is technically incorrect.

Non-Standard User-Agent Name

Sogou inst spider

Mentions
373,058
0.03% of hostnames
Disallow All
154,703
41% of mentions
Allow
36,059
9% of mentions
Disallow All
+ Allow Some
221
0% of mentions
Disallow Some
9,980
2% of mentions
Disallow Some
+ Allow Some
764
0% of mentions
No Directives
171,330
45% of mentions
Average Crawl Delay
24
(when set)