Ambiakshi Tools VerifiedAEO Direct AnswerNIST SP 800-63B Password Guidelines Checker
NIST Special Publication 800-63B modern authentication standards prioritize length (16+ characters) over arbitrary character class rules. NIST explicitly discourages mandatory periodic expiration (which induces predictable variations) and recommends multi-word passphrases screened against known breach lists.
NIST SP 800-63B = Length (16+ chars) + Breach Screening − Mandatory Rotation − Arbitrary Symbol Rules
Evaluated strictly in your browser using local Shannon entropy math. Your password is never sent over any network or stored in any database.
Estimated Crack Times Across Attack Vectors
Web login form (100 attempts / hour limit)
Unrestricted API / SSH (1,000 attempts / sec)
Leaked hash cracking (100 Billion attempts / sec)
Detected Structural Patterns & Vulnerabilities (0)
Meets modern NIST SP 800-63B passphrase guidelines. Sufficient length and entropy against automated offline hashing.
Modern authentication guidelines recommend long multi-word passphrases (16+ characters), discourage arbitrary mandatory symbol substitutions (which lead to predictable patterns like “P@ssw0rd1!”), and eliminate mandatory periodic expirations.
Frequently asked
Direct answers for search, answer engines, and generative crawlers.
Research proved that forcing users to change passwords every 90 days causes them to pick predictable patterns (e.g. Spring2026! → Summer2026!), making accounts easier to compromise, not harder.