Notes from building qr-cow.
Bugs that bit me, things I learned shipping QR codes to 60+ countries, the occasional growth post. Written by hand — no content factory.
Static vs dynamic QR codes: pick the right one
Static codes are simple and bulletproof. Dynamic codes change destination and count every scan. Here is when each one wins.
Welcome to the qr-cow blog 🐮
A quick tour of what we will be posting here. Mostly practical guides on getting QR codes scanned, a bit of news, and the odd note from behind the scenes.
What QR code analytics actually tell you
A scan counter on its own is decoration. The interesting question is who scanned, from where, and when. Each answer is an action.
Are QR codes dead in 2026? Not even close
Every few months someone declares QR codes dead, then walks straight into a café and scans the menu. Here is what the data actually shows.
vCard QR codes are eating paper business cards
Most paper business cards end up in a drawer or a bin. A vCard QR drops your contact straight into a phone with two taps. Worth doing.
How to make a Wi-Fi QR code in 30 seconds
Stop reading your password out loud. A Wi-Fi QR code lets people join your network with one scan. Here is how I make mine.