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 approximate IP details.
Get all possible details about an SSL certificate.
Get all possible details about a domain name.
Validate JSON content and make it looks good.
Get the web-host of a given website.
Get & verify the meta tags of any website.
Convert text to ascii and the other way for any string input.
Easily convert JPG image files to GIF.
Generate a paypal payment link with ease.