=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sat, 04 Dec 2021 14:16:50 GMT
Content-Type: text/html; charset=iso-8859-1
Content-Length: 232
Connection: close
Location: https://www.seotools.jp/

HTTP/1.1 200 OK
Server: nginx
Date: Sat, 04 Dec 2021 14:16:51 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Vary: Accept-Encoding
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: PHPSESSID=0801mtf4dg1v21kjntcgk68l0r8pv45k; path=/

Request headers
================
HEAD / HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.seotools.jp
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.