=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Thu, 02 Dec 2021 21:19:03 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Location: https://www.gearthblog.com/blog/archives/2008/07/more_addons_for_google_earth_flight.html
Host-Header: 8441280b0c35cbc1147f8ba998a563a7
X-HTTPS-Enforce: 1
X-Proxy-Cache-Info: DT:1

HTTP/1.1 200 OK
Server: nginx
Date: Thu, 02 Dec 2021 21:19:04 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Vary: Accept-Encoding
X-Cache-Enabled: True
Link: &lt;https://www.gearthblog.com/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;, &lt;https://www.gearthblog.com/wp-json/wp/v2/posts/1529&gt;; rel=&quot;alternate&quot;; type=&quot;application/json&quot;, &lt;https://www.gearthblog.com/?p=1529&gt;; rel=shortlink
Content-Security-Policy: upgrade-insecure-requests
X-Httpd: 1
Access-Control-Allow-Origin: *
Host-Header: 8441280b0c35cbc1147f8ba998a563a7
X-Proxy-Cache-Info: DT:1

Request headers
================
HEAD /blog/archives/2008/07/more_addons_for_google_earth_flight.html HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.gearthblog.com
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.