Easily convert days to seconds.
Easily convert days to minutes.
Easily convert days to hours.
Easily convert days to months.
Easily convert days to years.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get the gravatar.com globally recognized avatar for any email.
Get all possible details about a domain name.
Take an IP and try to look for the domain/host associated with it.
Ping a website, server or port..
Get all possible details about an SSL certificate.