QR codes — or "Quick Response" codes ... In the top-right corner next to the address bar, tap the Share symbol, which looks like a square with an arrow pointing upward.

QR codes are those square barcode-looking things that when scanned by your iPhone 16 Pro, Galaxy S25 Ultra or any other phone ...

Printed onto that square is a QR code — that square digital bar code ... Visitors to a tagged grave can pull out their smartphones, scan the QR symbol, and be sent to a personalized Web page ...

The gangly square bar codes were slapped on posters ... Instead they became a frustrating symbol of over-engineering. You often needed a special QR code reader app which might fail to recognize ...