Website Doesn't redirect correctly
I wouldn't use nslookup to test reachability on macOS. Try scutil instead:

scutil -r www.apple.com
Reachable
scutil -r 192.185.0.218
Reachable,Directly Reachable Address
scutil -r allabouthadoop.net
Reachable


Then you'll need to check if the ports you want are open once you've verified network reachability (and if you have to go through a router or the address is directly reachable on a local subnet to your Mac). I use https://brew.sh to get nmap installed easily.

/usr/local/bin/nmap allabouthadoop.net
Starting Nmap 7.70 ( https://nmap.org ) at 2018-09-02 15:10 HST
Nmap scan report for allabouthadoop.net (195.201.179.80)
Host is up (0.23s latency).
rDNS record for 195.201.179.80: free-hosting-clients.freehosting.com
Not shown: 985 closed ports
PORT     STATE SERVICE
21/tcp   open  ftp
22/tcp   open  ssh
25/tcp   open  smtp
80/tcp   open  http
110/tcp  open  pop3
143/tcp  open  imap
443/tcp  open  https
465/tcp  open  smtps
554/tcp  open  rtsp
587/tcp  open  submission
993/tcp  open  imaps
995/tcp  open  pop3s
7070/tcp open  realserver
9100/tcp open  jetdirect
9103/tcp open  jetdirect

Nmap done: 1 IP address (1 host up) scanned in 14.66 seconds