Qrblox author

Sara

Sara writes practical, source-backed guides about QR code history, safety, design, campaigns, and business use cases.

Articles by Sara

10 Types of QR and 2D Codes Explained A plain-language comparison of QR Code, Micro QR, rMQR, SQRC, FrameQR, Data Matrix, PDF417, Aztec, MaxiCode, and GS1 2D codes.
12 QR Code Mistakes That Kill Scan Rates Twelve QR campaign failures—from weak calls to action and tiny print to glare, broken links, poor mobile pages, and missing attribution.
15 Creative QR Code Designs That Still Scan Creative QR design ideas that preserve contrast, quiet zones, finder patterns, error correction, and real-world scannability.
17 Places to Put a QR Code The best physical and digital QR code placements, plus the distance, surface, dwell-time, and context checks that improve scan rates.
20 Real QR Code Campaign Examples Twenty real-world QR and 2D-code campaigns across television, packaging, retail, restaurants, events, travel, museums, fundraising, and product traceability.
21 QR Code Uses for Small Businesses Practical QR code ideas for reviews, bookings, payments, loyalty, product support, hiring, inventory, and measurable local marketing.
25 Things You Can Put in a QR Code Twenty-five useful QR code payloads, from websites and Wi-Fi to product manuals, payments, surveys, tickets, and dynamic smart pages.
7 Ways Restaurants Can Use QR Codes Beyond Menus Seven restaurant QR uses for Wi-Fi, reservations, ordering, payment, allergen details, reviews, loyalty, events, catering, and takeout reorders.
9 QR Code Scams and Warning Signs How quishing, sticker overlays, fake payment pages, login traps, prize surveys, and malicious app downloads work—and how to verify a QR code.
The History of QR Codes: From DENSO WAVE to Everyday Life The documented history of QR codes: the two-person DENSO WAVE team, Masahiro Hara, the 1994 release, open specifications, standards, camera phones, and modern uses.