Colour Contrast and WCAG in Practice
By qc_admin
How the contrast ratio is computed from relative luminance, the real WCAG AA and AAA thresholds, and practical tips for accessible text.
Author: qc_admin
Client-Side vs Server-Side: What Stays Private
By qc_admin
What “runs in the browser” really means, how to verify no data leaves your machine with the DevTools Network tab and CSP, and why client-side tools are safer for sensitive input.
Base64: What It Does and What It Isn’t
By qc_admin
Base64 turns binary into safe ASCII text for transport, adds about 33% size, and is not encryption or compression. Here is what it really does.