=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Jul 2019 01:06:37 GMT
Server: Apache
X-Safe-Redirect-Manager: true
Location: https://ssdp.nationbuilder.com/donate
Vary: Accept-Encoding
Connection: close
Content-Type: text/html; charset=UTF-8

HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Access-Control-Request-Method: GET, POST, PUT, DELETE
Content-Type: text/html; charset=utf-8
ETag: W/&quot;c93d2c26d7b6cbd3df567298133f2e94&quot;
Server: Apache
Status: 200 OK
X-Content-Digest: d15acfbd960b377b4f7450396584ebd1406753de
X-Content-Type-Options: nosniff
X-Frame-Options: ALLOWALL
X-Middleware-Start: t=1564362397757556
X-NB-Cached-Page: yes
X-Rack-Cache: fresh
X-Request-Id: 6655c65c-516c-40ef-8d50-4eee240912ec
X-Runtime: 0.071183
X-Served-By: app12
Content-Length: 0
Expires: Mon, 29 Jul 2019 01:06:37 GMT
Cache-Control: max-age=0, no-cache, no-store
Pragma: no-cache
Date: Mon, 29 Jul 2019 01:06:37 GMT
Connection: close
Set-Cookie: _nbuild_token=9BVdpSx0V2GYTy3VS5XAGth5vznFdiP40%2Fvsi1KWCe4%3D; path=/; HttpOnly
Use-Proxy: True

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


Link is valid.