What this Windows error really means, the seven situations it comes from, from a moved shortcut to Windows Update, and the fix for each one.

RAW keeps everything the sensor saw, JPEG is a finished picture. What that means for editing, file size and sharing, and a simple rule for choosing.

Error 1033 means the site uses a Cloudflare Tunnel and the program running it is not connected. What visitors can do, and the checks that fix it for owners.

A string is how a program stores text. What that means, how quotes mark one, why “5” and 5 are different, and the string mistakes behind common beginner errors.

A certificate is trusted through a chain of signatures up to a root the browser knows. How it works, why a missing link breaks some visitors, and the fix.

HTTPS is web traffic sent inside an encrypted connection. What it protects, what the padlock does not promise, and how to get it on your own site for free.

Cron runs commands on a schedule on Linux servers and Macs. How a crontab line works, examples to copy, the mistakes that stop jobs running, and WP-Cron.

JSON is plain text for storing and sending data between programs. What it looks like, why it won, the rules that break it, and where it falls short.

A .md file is plain text with a few symbols that turn into headings, bold and lists. What Markdown is, how to open and preview one, and where it falls short.