The link to the demo site requires authentication.
GET / HTTP/1.1
Host: cv.gsm-center.com.ua
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br
DNT: 1
Upgrade-Insecure-Requests: 1
Referer: https://github.com/tbaltrushaitis/cv/blob/master/README.md
Connection: keep-alive
HTTP/1.1 401 Authorization Required
Date: Tue, 24 Dec 2019 23:57:16 GMT
Server: Apache
WWW-Authenticate: Basic realm="Restricted Area - Authorized Users Only"
Content-Length: 401
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=iso-8859-1