How the password quality analyzer works

Description · Update 3 October 2026

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Local analysis

The entered value remains in the browser field and is analyzed locally; the page does not send it.

The result shows the level, found patterns and recommendations, without repeating the entered password. The analysis does not connect to another service or reads the clipboard. Start with a fictional example; you do not have to enter the real password into the account.

Detected patterns

Heuristics recognize the length, repetition, sequences, several keyboard patterns, dates, years, popular words and predictable leetspeak swaps.

Limitations

The exact time of fracture cannot be given: it depends on the system, the way it is stored, the attacker and many unknown conditions. The result is a clue, not a guarantee.

Random and imaginary

Random password or random passphrase from the generator are usually less predictable than a password invented according to a known scheme. Length remains valid, also without symbols.

Additional protection

Use password manager, and where the service supports it, turn on 2FA or passkey.

Sources

Password recommendations describe NIST SP 800-63BThe analyser uses its own limited heuristician; the result does not confirm the compliance of the account with this standard.