Technical Guide & Specs
Dynamic vs Static QR Codes
Everything you need to know about static payload storage vs redirect-server tracking, scan limits, privacy guarantees, and Reed-Solomon error correction.
| Feature / Property | Static QR Code (Generated Here) | Dynamic QR Code (Commercial SaaS) |
|---|---|---|
| Data Storage Location | Embedded directly in QR code matrix | Shortened URL redirecting to SaaS server |
| Expiration Risk | Never expires (Permanent) | Expires if SaaS plan is canceled |
| Privacy & Security | 100% Private, zero third-party tracking | Scans tracked by redirect server analytics |
| Editable After Printing? | No (Payload fixed in matrix) | Yes (Server redirect can be changed) |
| Cost & Fees | 100% Free Forever | Requires $10 - $50/month subscription |
Understanding Error Correction Levels (L, M, Q, H)
QR codes use Reed-Solomon Error Correction algorithms to allow barcodes to be read even if parts are damaged, scuffed, or covered by custom center brand logos.
Level L (7%)
Restores up to 7% of missing data. Smallest matrix size, best for long URLs without logos.
Level M (15%)
Restores up to 15% missing data. Default balance between code size and scanner reliability.
Level Q (25%)
Restores up to 25% missing data. Excellent for outdoor signage exposed to weather.
Level H (30%)
Restores up to 30% missing data. Required when embedding central custom logos & icons.