· 3 min read
How strong is your password, really?
Password strength is about how many guesses an attacker needs. Learn what entropy means, why length beats symbols, and when a passphrase is the better choice.
Blog
Practical guides to the everyday problems our tools solve. New posts every Tuesday · RSS
· 3 min read
Unix timestamps and time zones, explained
Why 1700000000 is a date, why your timestamp is 1,000 times too big, and how to store and show times without time zone bugs. A practical guide with examples.
· 3 min read
Cron expressions explained with 12 examples
Five fields, a few symbols and a lot of confusion. Learn to read and write cron schedules with 12 real examples, plus the time zone and day-of-week traps to avoid.
· 3 min read
JSON vs YAML: when to use which
JSON and YAML describe the same data, but they fail in different ways. A practical guide to choosing between them, with the YAML gotchas that bite in production.
· 4 min read
How to read a JWT without leaking it
A JSON Web Token is just three Base64url chunks. Here's how to read the header and claims, what to check, and why you should never paste one into a random site.