=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: CloudFront
Date: Mon, 16 Sep 2019 16:57:46 GMT
Content-Type: text/html
Content-Length: 183
Connection: close
Location: https://www.cbd.int/2010/welcome/
X-Cache: Redirect from cloudfront
Via: 1.1 a72ebc92bbf5fa76a0ca9f215cd3056c.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: IAH50-C2
X-Amz-Cf-Id: Fv9i31sd3y242_aIS_nW3WSvr4D0Gt5MXMIREco5z8nfc5Zxk5VRjw==

HTTP/1.1 301 Moved Permanently
Content-Type: text/html
Content-Length: 184
Connection: close
Server: nginx/1.9.9
Date: Mon, 16 Sep 2019 16:57:46 GMT
Location: https://www.cbd.int/2011-2020/
X-Cache: Miss from cloudfront
Via: 1.1 b9390de751c0cfbb2266ab67b44ef1ca.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: IAH50-C2
X-Amz-Cf-Id: dkUOKEtvllt-5yGTxYnL0X3HUJm6KpwnAyYJP1yRpIlZgalfDdYGDg==

HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 24631
Connection: close
Server: nginx/1.9.9
Date: Mon, 16 Sep 2019 16:57:46 GMT
ETag: W/&quot;6037-9BsI+4ErJGp2azdH1FNWIzyvmJU&quot;
Vary: Accept-Encoding
X-Cache: Miss from cloudfront
Via: 1.1 1c4e68d052a44eedf05a8efbc60c2631.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: IAH50-C2
X-Amz-Cf-Id: 7X7oajjYoLStnWyOfN5BwJFS3RLzAiCS2i87tEpF3PSPqtuBYL9X6A==

Request headers
================
HEAD /2011-2020/ 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.cbd.int
Accept: */*
Referer: http://centrotecnico.shinsei.com.br
Connection: close


Link is valid.