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Try a few example inputs:
Password Checker Online helps you to evaluate the strength of your password. More accurately, Password Checker Online checks the password strength against two basic types of password cracking methods – the brute-force attack and the dictionary attack. It also analyzes the syntax of your password and informs you about its possible weaknesses. This tool can thus also help you create stronger password from a weak one.
The score computation is mostly based on the time that a middle size botnet would need in order to crack your password if it employs the brute-force attack. An attacker typically tries several most common passwords first therefore if your password belongs to the list of 10000 most common passwords your password receives score 0 because these passwords are extremely weak.
There are important attributes of your password that an automatic tool such as Password Checker Online can not evaluate. When you create your password you should keep in your mind that it should not contain any information that is related to you or the system in which the password is used. You should also avoid using same or similar passwords in different systems – e.g. you should use completely different passwords for your social network account and for your email account.
Simply enter the password you want to check into the Password field and that is it! The password is being analyzed as you are typing it, so you see the results of the syntax analysis immediately. If you want to check your password against the dictionary attack click the "Check!" button in the dictionary attack section. Be patient, the dictionary attack check may take a few seconds to complete.
One IP address is allowed to execute the dictionary attack check of Password Checker Online no more than 10 times per hour and no more than 80 times per day. Using the syntax analysis is not limited.