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

Non-Standard User-Agent Name

Sogou spider2

Mentions
319,990
0.02% of hostnames
Disallow All
54,823
17% of mentions
Allow
66,681
20% of mentions
Disallow All
+ Allow Some
124
0% of mentions
Disallow Some
14,152
4% of mentions
Disallow Some
+ Allow Some
1,052
0% of mentions
No Directives
183,157
57% of mentions
Average Crawl Delay
55
(when set)