=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 TLS Redirect
Date: Mon, 29 Jul 2019 01:00:55 GMT
Server: Varnish
X-Varnish: 419421871
X-Cache: cp4027 int
X-Cache-Status: int-front
Server-Timing: cache;desc=&quot;int-front&quot;
Set-Cookie: WMF-Last-Access=29-Jul-2019;Path=/;HttpOnly;secure;Expires=Fri, 30 Aug 2019 00:00:00 GMT
Set-Cookie: WMF-Last-Access-Global=29-Jul-2019;Path=/;Domain=.wikipedia.org;HttpOnly;secure;Expires=Fri, 30 Aug 2019 00:00:00 GMT
X-Client-IP: 208.97.171.33
Location: https://en.wikipedia.org/wiki/Insite
Content-Length: 0
Connection: close

HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 01:00:55 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Server: mw1274.eqiad.wmnet
X-Content-Type-Options: nosniff
P3P: CP=&quot;This is not a P3P policy! See https://en.wikipedia.org/wiki/Special:CentralAutoLogin/P3P for more info.&quot;
X-Powered-By: HHVM/3.18.6-dev
Content-language: en
Last-Modified: Fri, 26 Jul 2019 16:49:17 GMT
Backend-Timing: D=123774 t=1564204916897680
Vary: Accept-Encoding,Cookie,Authorization,X-Seven
X-Varnish: 727426698 759883953, 301485716 297128703, 918753796 752560928, 348973996 257126641
Age: 157137
X-Cache: cp1077 hit/8, cp2010 hit/1, cp4030 hit/3, cp4027 hit/1
X-Cache-Status: hit-front
Server-Timing: cache;desc=&quot;hit-front&quot;
Strict-Transport-Security: max-age=106384710; includeSubDomains; preload
Set-Cookie: WMF-Last-Access=29-Jul-2019;Path=/;HttpOnly;secure;Expires=Fri, 30 Aug 2019 00:00:00 GMT
Set-Cookie: WMF-Last-Access-Global=29-Jul-2019;Path=/;Domain=.wikipedia.org;HttpOnly;secure;Expires=Fri, 30 Aug 2019 00:00:00 GMT
X-Analytics: ns=0;page_id=6220860;https=1;nocookies=1
X-Client-IP: 208.97.171.33
Cache-Control: private, s-maxage=0, max-age=0, must-revalidate
Set-Cookie: GeoIP=US:CA:Brea:33.93:-117.89:v4; Path=/; secure; Domain=.wikipedia.org
Accept-Ranges: bytes

Request headers
================
HEAD /wiki/Insite HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Host: en.wikipedia.org
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.