=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Connection: close
x-powered-by: PHP/5.3.29
content-type: application/vnd.google-earth.kml+xml
content-disposition: inline; filename=doc.kml
cache-control: public, max-age=172800
expires: Sun, 05 Dec 2021 10:18:49 GMT
date: Fri, 03 Dec 2021 10:18:49 GMT
server: LiteSpeed
vary: User-Agent

Request headers
================
HEAD /earth.php?long=-106.4754&amp;lat=33.6773 HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.alder-digital.de
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.