Practical QR guides

The real-world reasons QR codes fail (contrast, quiet zone, blur, density, glossy print) and the quickest fixes that work on iPhone/Android.

Exact WIFI: payload format, what “Encryption” means, and how to avoid scan failures on iPhone/Android (special chars, hidden networks).

When SVG is mandatory (printing), when PNG is fine (screens), and how resizing affects scan reliability.

Why quiet zone is non-negotiable, how to choose colors that scan, and what backgrounds (patterns, gradients) break QR detection.

Detailed instructions on how to fix common issues with QR codes such as scan failures, blurry codes, and unrecognized codes.

Exact mm/in recommendations, quiet zone rules, and print tips so your QR scans fast on real phones from typical distances.

Which vCard fields actually get saved on iOS/Android, what to keep minimal, and how to avoid bloating the QR for better scans.

How to add UTM parameters to QR destinations, which UTM fields matter, and how to keep URLs short enough to avoid dense QRs.

How big should a QR be on posters and signs? Use a simple distance→size table, plus placement and glare tips for real-world scanning.

Pick the right error correction level for print/screens/logos. Learn the trade-off: higher correction = denser QR = needs larger print.

Clear differences, when static is enough, when dynamic matters (editable destination, tracking), and how it impacts scan reliability and print size.

Recommendations for the optimal QR code size for printing, especially for business cards and other small print materials.

Learn how to choose the right QR code colors, background colors, and contrast to ensure that your QR codes scan reliably across devices.

Why shorter URLs scan better, what to avoid (expiring links), and a practical plan for stable QR destinations.

When QR scans but the destination fails inside in-app browsers. Fix redirect chains, http/https issues, blocked links, and build a stable landing flow.

Best size for table tents and wall posters, avoiding glare, and a practical checklist for menus that scan instantly in real lighting.

Practical payload formats (tel:, sms:, mailto:, geo:) and tips so users land on the expected action screen on iOS/Android.

How to generate QR codes for different social media platforms like Instagram, LinkedIn, and Facebook for easy access to social profiles.

Generate QR codes for coupons and promo codes that link to discount pages or specific codes, enhancing marketing campaigns.

Create QR codes for event registration and check-in to streamline the process.