=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=iso-8859-1
Date: Mon, 29 Jul 2019 00:30:42 GMT
Location: http://www.routledge.com/products/9780415696104
Server: Apache
X-Frame-Options: SAMEORIGIN, SAMEORIGIN
Connection: Close

HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=iso-8859-1
Date: Mon, 29 Jul 2019 00:30:42 GMT
Location: https://www.routledge.com/products/9780415696104
Server: Apache
X-Frame-Options: SAMEORIGIN, SAMEORIGIN
Connection: Close

HTTP/1.1 301 Moved Permanently
Cache-Control: no-store, no-cache, must-revalidate
Content-Type: text/html; charset=UTF-8
Date: Mon, 29 Jul 2019 00:30:42 GMT
Location: https://www.routledge.com/Why-We-Take-Drugs-Seeking-Excess-and-Communion-in-the-Modern-World-1st/Yardley/p/book/9780415696104
Pragma: no-cache
Server: Apache
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X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN, SAMEORIGIN
X-Frame-Options: SAMEORIGIN
X-UA-Compatible: IE=edge
X-XSS-Protection: 1; mode=block
Connection: Close

HTTP/1.1 200 OK
Cache-Control: no-store, no-cache, must-revalidate
Content-Type: text/html; charset=UTF-8
Date: Mon, 29 Jul 2019 00:30:44 GMT
Pragma: no-cache
Server: Apache
Set-Cookie: tandfws=eyJpdiI6Iit2SlNJRWIzRnYyUWFKRitHUjdSU1E9PSIsInZhbHVlIjoiTG51ZmtWdkloR1RXdzNDTUJlZ1ZXbGlFRHNsa2orNmNQTTFPSGhCUE0zRFBuWWx3NHdYWFJSSDd2UnhOanZaRitabzgwNDNremR4NllhVnFDbGVJMXc9PSIsIm1hYyI6IjhiNDJiOWU2MjIxNTY2N2MyZDhmNzA4YWY2MDQ1NWJiM2Q3NWMwOWUzMTYyOTFjOTA2Y2M4Zjg4ZTJmMGUyMzYifQ%3D%3D; path=/; secure; httponly
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN, SAMEORIGIN
X-Frame-Options: SAMEORIGIN
X-UA-Compatible: IE=edge
X-XSS-Protection: 1; mode=block
Connection: Close

Request headers
================
HEAD /Why-We-Take-Drugs-Seeking-Excess-and-Communion-in-the-Modern-World-1st/Yardley/p/book/9780415696104 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: www.routledge.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.