Guides
Guides
One page per question, with the numbers already worked out for the common cases. Every table is produced by the same formulas as the tools, so you can open the tool and change any figure.
QR checker
Open the tool- Is my QR code static or dynamic? How to tellRead the link inside the code: a dynamic code holds a short link on a QR vendor's domain. The vendor domains we list, each with the vendor's own page.QR checker
- Why did my QR code stop working after the free trial?Dynamic codes run through the vendor's server, and several vendors say trial codes are deactivated or paused when the trial ends. Their own words, and what to do.QR checker
- Do QR codes expire?A QR code has no expiry date inside it. Static codes work as long as the content is valid; dynamic codes work as long as the vendor forwards them. By content type.QR checker