This glossary explains common terms used in Wi‑Fi QR codes so you can build and print reliable codes with confidence.
The network name your router broadcasts. The SSID must match exactly (including case and spaces) for a QR to work.
The encryption standard used by your router. WPA2 and WPA3 are recommended; “Open” means no password.
The Wi‑Fi key. Use 12+ characters and avoid reusing old keys.
A network that does not broadcast its name. Hidden SSIDs often require confirmation prompts on phones.
The blank space around a QR code. A 4–6 module quiet zone makes scans more reliable.
Controls how much damage a QR can tolerate. Higher levels are more robust but slightly denser.
The small square unit in a QR code. Margins are measured in modules.
The difference between the foreground and background. High contrast (dark on light) scans best.
Dots per inch; for print, export at 300 DPI when possible.
Light reflection that reduces scan accuracy. Matte stock helps reduce glare.
A short SSID/password line printed near the QR for accessibility and manual entry.