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Get all possible details about an SSL certificate.
Get all the HTTP headers that an URL returns for a typical GET request.
Check whether a website is using the new HTTP/2 protocol or not.
Make sure your passwords are good enough.
Encode any string input to Base64.
Transform an image input to a Base64 string.
Get details of any file type, such as the mime type or last edit date.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Order text lines in alphabetical order (A-Z or Z-A) with ease.