Take an IP and try to look for the domain/host associated with it.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get all possible details about an SSL certificate.
Get all possible details about a domain name.
Ping a website, server or port..
Convert your HEXA color format to RGB format.
Convert your RGB color format to HEX format.
Get approximate IP details.
Minify your CSS by removing all the unnecessary characters.