=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 00:09:31 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 38456
Connection: close
Set-Cookie: __cfduid=dae5f6ffe34c4f443461e65d62cb7f3d21564358971; expires=Tue, 28-Jul-20 00:09:31 GMT; path=/; domain=.bitpay.com; HttpOnly
Strict-Transport-Security: max-age=31536000
X-Download-Options: noopen
X-Content-Type-Options: nosniff
Cache-Control: private, no-store
Pragma: no-cache
Content-Language: en
X-XSS-Protection: 1; mode=block
X-Permitted-Cross-Domain-Policies: none
X-Frame-Options: SAMEORIGIN
ETag: W/&quot;9638-YmO7fhCJhGvZthADx763i1euBDQ&quot;
set-cookie: connect.sid=s%3ADxsH3gpbZQlUQ59f56rUe_ircoMV0ble.LQLwB8lKOdPEPkKmQX8qJvwn8Zhsm0o5Zn3mXMvi0gw; Path=/; HttpOnly; Secure
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 4fdadd53ef90e0fe-IAD

Request headers
================
HEAD /185231/donate 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: bitpay.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.