=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Sun, 28 Nov 2021 18:16:18 GMT
Server: Apache
Last-Modified: Sat, 27 Nov 2021 06:20:44 GMT
ETag: &quot;441d-5d1bf352bb85f&quot;
Accept-Ranges: bytes
Content-Length: 17437
Cache-Control: max-age=3600, public, must-revalidate, proxy-revalidate
Expires: Sun, 28 Nov 2021 19:16:18 GMT
Vary: User-Agent
Pragma: public
Connection: close
Content-Type: text/html; charset=UTF-8

Request headers
================
HEAD /archives/2009/01/post_408.html HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.oshiete-kun.net
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.