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Password strength

Ten billion guesses a second is an example pace. The password is not saved.

Strength

Excellent

Bits
92.0
Example clock
15.5 billion years
Length
12 or more
Case
Upper and lower
Digit
Has a digit
Symbol
Has a symbol
Common
Not common
Sequence
No sequence

Lower case counts as 26, upper case as 26, digits as 10, and every other character as a symbol pool of 33. Letters outside A–Z sit in that pool of 33. The published list is password, password1, 123456, 12345678, qwerty, abc123, letmein, welcome, admin, iloveyou, monkey, dragon, 111111, and 000000. A string of only 123, a qwerty, qwertz, or azerty prefix, asdf, zxcv, one character repeated, or four digits or more is a sequence. qwertz and azerty are this page’s extra keyboard walks. Ten billion guesses a second is an example pace, not a measured attack. The field stays in this browser and is not saved.

Why this exists

CorrectHorse1! is Excellent, 92.0 bits, and the example clock reads 15.5 billion years.

Lower case counts as 26, upper case as 26, digits as 10, and every other character as a symbol pool of 33. Letters outside A–Z sit in that pool of 33. The published list is password, password1, 123456, 12345678, qwerty, abc123, letmein, welcome, admin, iloveyou, monkey, dragon, 111111, and 000000. A string of only 123, a qwerty, qwertz, or azerty prefix, asdf, zxcv, one character repeated, or four digits or more is a sequence. qwertz and azerty are this page’s extra keyboard walks. Ten billion guesses a second is an example pace, not a measured attack. The field stays in this browser and is not saved.

  1. 01How to use it

    CorrectHorse1! is Excellent, 92.0 bits, and the example clock reads 15.5 billion years.

    Lower case counts as 26, upper case as 26, digits as 10, and every other character as a symbol pool of 33. Letters outside A–Z sit in that pool of 33. The published list is password, password1, 123456, 12345678, qwerty, abc123, letmein, welcome, admin, iloveyou, monkey, dragon, 111111, and 000000. A string of only 123, a qwerty, qwertz, or azerty prefix, asdf, zxcv, one character repeated, or four digits or more is a sequence. qwertz and azerty are this page’s extra keyboard walks. Ten billion guesses a second is an example pace, not a measured attack. The field stays in this browser and is not saved.

  2. 02What you get

    Excellent.

    15.5 billion years

    EnteredCorrectHorse1!

    Password CorrectHorse1!
    Strength Excellent
    Example clock 15.5 billion years
  3. 03Worth knowing

    Lower case counts as 26, upper case as 26, digits as 10, and every other character as a symbol pool of 33. Letters outside A–Z sit in that pool of 33. The published list is password, password1, 123456, 12345678, qwerty, abc123, letmein, welcome, admin, iloveyou, monkey, dragon, 111111, and 000000. A string of only 123, a qwerty, qwertz, or azerty prefix, asdf, zxcv, one character repeated, or four digits or more is a sequence. qwertz and azerty are this page’s extra keyboard walks. Ten billion guesses a second is an example pace, not a measured attack. The field stays in this browser and is not saved.

    Ten billion guesses a second is an example pace. The password is not saved.

Questions

QExcellent?
AExcellent
Q92.0?
A92.0
Q15.5 billion years?
A15.5 billion years

How this page works it out

CorrectHorse1! is Excellent, 92.0 bits, and the example clock reads 15.5 billion years. Ten billion guesses a second is an example pace. The password is not saved.

The score adds one for 12 characters, one for upper and lower case, one for a digit, one for a symbol, and one when the entropy passes 60 bits. A common word sets it to 0, and a sequence subtracts one. Excellent is 4 or more.

Letters outside A–Z are not given a script size of their own. They sit in the symbol pool of 33. This page does not look up a breach list.

  • # Excellent
  • # 92.0
  • # 15.5 billion years