The NsLookup tool is functionally equivalent to nslookup on the Unix – Linux command-line.
My NsLookup queries the specified DNS server and retrieves the requested records that are associated with the domain name you provided.

This utility displays all network interfaces in the Mac with ip addresses, MAC addresses and other useful informations.
Touch bar supported.
Includes for every interface:
Name
IPv4 and IPv6 address
Netmask
Broadcast address
MAC address
Status
Mtu
Bytes received
Bytes sent
Description
and also:
DNS address
Wifi SSID
Wifi BSSID
Gateway
Mac uptime
Internet Ip
This simple app allows to compute a number of statistical properties of a sample.
It supports computing minimum, maximum, range, mean, median, harmonic mean, geometric mean, mean deviation, variance, standard deviation and coefficient of variation.