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Tips, guides, and updates from QRSansar
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UTM Parameters in QR Codes: Tracking Offline Conversions in GA4
Tag QR codes with UTM parameters so GA4 credits the poster, flyer or table tent that earned the scan. Naming rules, the Unassigned trap, length limits.
vCard 3.0 vs. MeCard in 2026: Which Format for Digital Business Cards?
vCard 3.0 carries photos and rich fields; MeCard stays small and scans fast. A 2026 field-by-field comparison for digital business card QR codes.
Why You Should Never Put bit.ly Inside a Static QR Code
Static QR codes are permanent. Third-party shorteners are not. Here is why combining them is the most common, most preventable QR mistake - and how to fix it.
SVG vs. PNG QR Codes: Why Vector Wins for Print (and When PNG is Fine)
SVG QR codes scale to any size without blur; PNG is fine for web only. Learn DPI, CMYK, and a print-shop checklist before sending files to press.
How Nepali Municipalities Can Use QR Codes for Public Records and File Tracking
A practical guide for Nepal's 753 local levels on deploying QR codes for service catalogs, certificate verification, file tracking, and citizen grievance redressal.
The Quiet Zone Mystery: Why Your Custom QR Code Stops Scanning
The white margin around a QR code is not decoration — it is part of the spec. Learn the 4-module rule, common Canva mistakes, and exact pixel math.
How Big Should Your QR Code Be? The Print-Size Formula (with Examples)
The 10:1 rule, the math behind it, and worked examples for business cards, posters, and billboards. Plus camera resolution and lighting caveats.
Accepting Fonepay, eSewa, and Khalti QR Payments: A Guide for Small Vendors in Nepal
How small vendors in Nepal accept Fonepay, eSewa, and Khalti QR payments. Registration, NepalQR, printing, troubleshooting, and settlement timelines.
Color Contrast for QR Codes: The 4:1 Rule and the Logo-Embedding 30% Rule
Why your branded QR fails to scan, the WCAG-adjacent 4:1 luminance ratio, and how much logo you can safely embed before error correction breaks down.
QR Error Correction Levels: When to Use L, M, Q, or H
Pick the right QR error correction level. L, M, Q, H explained with real recommendations for screens, print, industrial labels, and logo-embedded codes.
Dynamic vs. Static QR Codes: The Honest 2026 Comparison
Static QR codes are free forever; dynamic codes cost money but can be edited. Here is when each one actually makes sense, with real ROI math.
QRishing 101: How to Spot a Malicious QR Code (2026)
QRishing attacks are surging in parking lots, restaurants, and EV chargers. Learn the red flags, how to preview a URL safely, and what to do if you scanned a bad code.