=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Nov 2021 12:18:48 GMT
Server: Apache
Location: https://webtan.impress.co.jp/e/2007/05/21/1373
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.1 302 Found
Date: Mon, 29 Nov 2021 12:18:48 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
X-Drupal-Cache: MISS
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Cache-Control: no-cache, must-revalidate
X-Content-Type-Options: nosniff
Location: https://webtan.impress.co.jp/tools/grid_overlay
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Content-Security-Policy-Report-Only: default-src 'self' https: ; worker-src 'self' https: blob: ; font-src 'self' https: data: ; img-src 'self' https: data: ; script-src 'self' https: 'unsafe-inline' 'unsafe-eval' ; style-src 'self' https: 'unsafe-inline' ; report-uri https://netshop.report-uri.io/r/default/csp/reportOnly
Cross-Origin-Opener-Policy: same-origin-allow-popups
X-Cidr-Check: 1
Pragma: no-cache
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0
Vary: User-Agent,Cookie,Accept-Encoding

HTTP/1.1 200 OK
Date: Mon, 29 Nov 2021 12:18:48 GMT
Content-Type: text/html; charset=utf-8
Connection: close
X-BanchoDynamicPageCache-get: https://webtan.impress.co.jp/tools/grid_overlay
X-Drupal-Cache: HIT
Content-Language: ja
X-Frame-Options: SAMEORIGIN
Permissions-Policy: interest-cohort=()
X-UA-Compatible: IE=edge
Link: &lt;https://webtan.impress.co.jp/tools/grid_overlay?amp&gt;; rel=&quot;amphtml&quot;,&lt;https://webtan.impress.co.jp/sites/default/files/images/nakanohito/grid_overlay_icon.png&gt;; rel=&quot;image_src&quot;,&lt;//webtan.impress.co.jp/sites/all/themes/webtan/favicon.webtan.ico&gt;; rel=&quot;shortcut icon&quot;
Cache-Control: public, max-age=3600
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Vary: Cookie,User-Agent,Accept-Encoding
X-Content-Type-Options: nosniff
Etag: &quot;1638187406-0&quot;
Last-Modified: Mon, 29 Nov 2021 12:03:26 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Content-Security-Policy-Report-Only: default-src 'self' https: ; worker-src 'self' https: blob: ; font-src 'self' https: data: ; img-src 'self' https: data: ; script-src 'self' https: 'unsafe-inline' 'unsafe-eval' ; style-src 'self' https: 'unsafe-inline' ; report-uri https://netshop.report-uri.io/r/default/csp/reportOnly
Cross-Origin-Opener-Policy: same-origin-allow-popups
X-Cidr-Check: 1
Pragma: no-cache
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0

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


Link is valid.