$ mtr domainname
-- MTR is computer software which combines the functionality of the traceroute and ping programs in a single network diagnostic tool.MTR probes routers on the route path by limiting the number of hops individual packets may traverse, and listening to responses of their expiry. It will regularly repeat this process, usually once per second, and keep track of the response times of the hops along the path.
$ host domainname
-- In computer networking, a network host, Internet host, host, or Internet node is a computer connected to the Internet - or more generically - to any type of data network. A network host can host information resources as well as application software for providing network services. Internet hosts can generally be divided into server and client computers which generally communicate in the client-server model.
$ traceroute/tracepath domainname
-- Traceroute/Tracepath is a computer network tool used to show the route taken by packets across an IP network.
$ ping domainname/IP
-- Ping is a computer network admin utility used to test whether a particular host is reachable across an Internet Protocol (IP) network and to measure the round-trip time for packets sent from the local host to a destination computer, including the local host's own interfaces.
$ nslookup IP
-- This command is often used to perform a reverse lookup on an IP address. Provide the authoritive and non-authoritative answers.
$ dig domainname/IP
-- DNS lookup utility.
Websites: (Get more presentable information)
-- Domain Name to Look up, GET Domain Registrar and owner details, billing address details, nameserver, A record and current STATUS of website.
-- Trace (find path from current host) to some domain or hostname or an IP address.
-- DNS records lookup fetch information about domain (hostname), additionaly we show geo location (domain's country name, domain's region name, domain's city, provider (Internet Service Provider (ISP)).
-- IP address lookup tool includes country code, country name, region code and region name (geo location region), city, provider (organization,isp) and other geo information.
-- Get to know request and SERVER variables.
-- Know about Your IP and proxy headers.