How secure is your password?

These passwords are called "keyboard walks". Popular cracking software is readily able to crack these passwords.

This is incorrect. Salts are used exactly for the purpose of making it impossible to crack passwords with a rainbow table.

This website is spreading false information. What hashing algorithm is being used? What hardware being used? What cracking software is being used? Are you bruteforcing the whole keyspace, what about using masks? How susceptible is your password to techniques such as Markov chains, topological attacks, rule based attacks - need I go on?

While entertaining, the calculation being performed is rudimentary and not an accurate indication of how long it'd take to crack your password. Stay safe and use password managers.