Minify your HTML by removing all the unnecessary characters.
Minify your CSS by removing all the unnecessary characters.
Parse details from user agent strings.
Check if the URL is banned and marked as safe/unsafe by Google.
Get the web-host of a given website.
Get all possible details about a domain name.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get & verify the meta tags of any website.