=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Cache-Control: public, max-age=0, must-revalidate
Content-Length: 0
Content-Type: text/plain
Date: Sun, 14 Apr 2019 23:12:03 GMT
Link: &lt;https://d33wubrfki0l68.cloudfront.net&gt;; rel=preconnect; crossorigin
Location: https://smashingmagazine.com/
Referrer-Policy: no-referrer-when-downgrade
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Xss-Protection: 1
Age: 1
Connection: close
Server: Netlify
X-NF-Request-ID: 078e1b7d-cf4c-48d0-8bf1-56c3bd3635ab-14038524

HTTP/2 301 
cache-control: public, max-age=0, must-revalidate
content-length: 49
content-type: text/plain
date: Sun, 14 Apr 2019 23:11:49 GMT
link: &lt;https://d33wubrfki0l68.cloudfront.net&gt;; rel=preconnect; crossorigin
location: https://www.smashingmagazine.com/
referrer-policy: no-referrer-when-downgrade
strict-transport-security: max-age=31536000
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1
age: 14
server: Netlify
x-nf-request-id: 078e1b7d-cf4c-48d0-8bf1-56c3bd3635ab-14038556

HTTP/2 200 
cache-control: public, max-age=0, must-revalidate
content-type: text/html; charset=UTF-8
date: Sun, 14 Apr 2019 23:11:50 GMT
etag: &quot;ea702d7ededafa23b229b014e40e5c8f-ssl&quot;
link: &lt;https://d33wubrfki0l68.cloudfront.net&gt;; rel=preconnect; crossorigin
referrer-policy: no-referrer-when-downgrade
strict-transport-security: max-age=31536000
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1
age: 13
content-length: 126106
server: Netlify
x-nf-request-id: c8d095bc-db61-4f06-ba05-a892a164b328-14038118

Request headers
================
HEAD / HTTP/2
Host: www.smashingmagazine.com
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: https://itxdesign.com
Connection: close


Link is valid.