How to check DNS on Mac terminal?

I tried using dnslookup command with ip of website. I used the following command: If everything went well then you get the name of the website as a response. To add another nameserver to use: Then you just type it to make it work, for instance: dnslookup google.com 8.8 (Google public DNS)

How can I make this happen on Mac OS, because when I open IPconfig command as shown below: I get two default nameservers and when I type the above command then it gives me nameserver 172.16.1

So is there a way to make this work without installing DNS-Client package on Mac OS? The Apple Developer Network (ADN) offers the free Mac OS X 10.5 DNS Server app to allow Mac OS X to use custom DNS servers by adding the configuration file '/etc/systems/named.conf' and using the following line:
Acl localhost src 10.0/8 ::1 allow-query ;. This will allow for using dnslookup with the IP address of 127. This was originally available on www.apple.com but is now on the developer website:
It is highly likely that this change will be made in 10.11.x, but not confirmed yet. The reason for using the 127.1 for DNS lookups is that this will only work for your own Mac OS X system and won't work for connecting to a remote server.

You should also be able to simply run dnslookup and the output will include localhost as an alias for the local interface. Note: You may have to wait for the DNS Lookup app to be updated from Xcode 11. The command dnslookup on macOS Mojave doesn't accept any arguments and just prompts for input when run on macOS Mojave and later.

What is the equivalent of nslookup on a Mac?

There are two answers to your question: nslookup is part of the core OS.

If you have a Mac, you will be able to use nslookup without installing anything. It comes with OS X, it's installed in /System/Library/CoreServices/nslookup.app You can find it in /usr/bin/nslookup. You can launch it in the terminal with open /System/Library/CoreServices/nslookup.app and you can run it with ./nslookup, the same as any other shell script
Nslookup doesn't have access to external DNS servers. If you use nslookup in a machine that has its own DNS server, you might be able to use it. You will however need to install some libraries, as I don't think that it comes with them.

You need to install dnsmasq or BIND. They both come with MacPorts or Homebrew These should work on 10.6 and later: sudo port install dnsmasq. Sudo port install bind. It will also take a long time to install, because the libraries are quite big. You can find information about these libraries and their versions on the nslookup manpage.