Ping

Ideal for monitoring websites, APIs and web services. Ideal for monitoring a server. Ideal for monitoring databases, POP or SMTP servers.

Similar tools

DNS Lookup

Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.

IP Lookup

Get approximate IP details.

Whois Lookup

Get all possible details about a domain name.

Reverse IP Lookup

Take an IP and try to look for the domain/host associated with it.