Easily convert years to seconds.
Easily convert years to hours.
Easily convert years to days.
Easily convert years to weeks.
Easily convert years to months.
Get approximate IP details.
Get all possible details about an SSL certificate.
Get & verify the meta tags of any website.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get all the HTTP headers that an URL returns for a typical GET request.
Take an IP and try to look for the domain/host associated with it.