ext-cust.squarespace.com has address 198.185.159.144
This page provides an online version of the OS hostname and whois commands. It allows you to retrieve publicly available DNS and Whois information for any website or hostname through a single interface.
Host Info
cleantalk.org:~$ host ext-cust.squarespace.com
ext-cust.squarespace.com has address 198.185.159.144
ext-cust.squarespace.com has address 198.49.23.145
ext-cust.squarespace.com has address 198.185.159.145
ext-cust.squarespace.com has address 198.49.23.144
Whois info
cleantalk.org:~$ whois ext-cust.squarespace.com
An unexpected issue occurred. Please report it to support@cleantalk.org