Developer
SHA-256 vs MD5: Hashing for Checksums, Not Passwords
MD5 is broken for collision resistance; SHA-256 is not, and on our test machine it was faster. Where each fits, how to…
Developer
Developer
Unix Timestamps: Seconds, Milliseconds and Time Zones
What a Unix timestamp is, why seconds and milliseconds get mixed up, how to convert correctly in JavaScript, PHP, Python and WordPress,…
Developer
UUID v4 Explained: Uniqueness, Formats and Use Cases
The UUID v4 format, collision odds calculated, generation and validation tested in Node.js, Python and WordPress, and an SQLite test of random…
Developer
Minifying CSS: What It Saves and When Your Build Should Do It
We minified WordPress core stylesheets with five tools and compressed the results: what minification saves on top of gzip and Brotli, and…