QR codes are no longer a novelty. iPhone and Android cameras detect them natively, and people scan them without thinking. That makes them a viable primary share method for your digital business card — at events, on signage, in slides, and in print. The catch is that a poorly produced QR code feels just as broken as a dead link, and you usually only get one chance.
Static vs Dynamic QR Codes
A static QR code encodes the destination URL directly into the pattern. The pattern never changes, and there is no redirect. A dynamic QR code encodes a short URL that redirects to the real destination, which means the destination can be changed later without reprinting the code.
For a digital business card, dynamic codes are almost always the right choice. If your role, employer, or card slug ever changes, you can update the redirect target without throwing out signage or NFC cards. MyLinksCard QR codes are dynamic by design — the encoded URL points to your card slug, and you can change what that slug shows.
Sizing and Print Quality
The general rule is that the printed QR code should be at least 1/10th of the scanning distance. A code on a business card scanned from 6 inches away can be 0.6 inches wide. A code on a conference booth scanned from 6 feet away needs to be at least 7 inches wide. Going smaller than this rule is the single most common reason QR codes fail in the wild.
Always print at 300 DPI or higher and avoid scaling small bitmap exports up — request an SVG or high-resolution PNG and let the printer handle sizing. Leave a quiet zone of at least 4 modules around the code; without that whitespace, scanners struggle to detect the boundary.
Contrast and Color
Dark on light is the only safe combination. Inverted codes (light on dark) fail on a meaningful share of older Android cameras and many third-party scanners. If you must use color, keep the foreground darker than the background and aim for a contrast ratio of at least 4.5:1. Reflective metallics, gradients, and photo backgrounds dramatically reduce reliability.
Error Correction Levels
QR codes have four error correction levels — L (7%), M (15%), Q (25%), and H (30%). Higher levels let the code remain scannable when part of it is obscured, at the cost of a denser pattern. For a card that may be partially covered by a logo or a finger, use Q or H. For pristine print on paper, M is fine.
Branded QR Codes
Logos in the center of a QR code are popular and they work — as long as you raised the error correction level first. The logo should cover no more than 25% of the code area, sit centered, and have a small white border to separate it from the modules. Always test the final result with at least three phones (one iPhone, two Android) at the actual print size before committing.
Fallback URLs and Vanity Links
Print the destination URL in plain text near the QR code. People with older phones, restrictive camera apps, or accessibility needs cannot always scan, and a typed URL is the fallback. Use a short slug — mylinkscard.com/yourname rather than a 40-character analytics-laden link. The shorter the URL, the lower the QR code density and the easier it scans.
Tracking Scans
If your card platform supports it, look at scan source data. MyLinksCard distinguishes between QR scans, NFC taps, and direct link visits, which lets you measure which sharing method drives the most engagement at each event or campaign. That signal helps you decide where to invest — bigger signage, a printed insert, an NFC card — for your next round of networking.
The codes that work in 2026 are the ones that look intentional but follow the basics: dynamic, dark on light, sized for the scan distance, with the URL printed beside them as backup. Get those right and the code becomes invisible — which is the point.