=== HTTP code : 200 ===

Response headers
================
HTTP/2 200 
date: Sun, 14 Apr 2019 11:13:02 GMT
content-type: text/html; charset=UTF-8
set-cookie: __cfduid=d44c9c6e57848d0460b6e87ee0cc20c981555240382; expires=Mon, 13-Apr-20 11:13:02 GMT; path=/; domain=.yoast.com; HttpOnly; Secure
vary: Accept-Encoding
x-dns-prefetch-control: on
link: &lt;/app/themes/yoast-theme/css/fontawesome.min.css?ver=1555062123&gt;;rel=preload;as=style;
link: &lt;/app/themes/yoast-theme/fonts/FontAwesome.woff2&gt;;rel=preload;as=font;crossorigin;
link: &lt;/app/themes/yoast-theme/images/logo.svg&gt;;rel=preload;as=image;nopush
link: &lt;https://yoast.com/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;
x-backend: web2.yoast.com
x-cached: HIT
x-proxy-cache: HIT
strict-transport-security: max-age=31536000; includeSubDomains; preload
set-cookie: selected_shop=1; Domain=.yoast.com; Path=/
set-cookie: selected_country=US; Domain=.yoast.com; Path=/
set-cookie: __cflb=4224387176; Secure; path=/; expires=Mon, 15-Apr-19 10:13:02 GMT; HttpOnly
x-content-type-options: nosniff
expect-ct: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
server: cloudflare
cf-ray: 4c753f87e99a5296-MIA

Request headers
================
HEAD /wordpress/plugins/seo/ HTTP/2
Host: yoast.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.