Answers
QR code problems, solved
Something broken? Start here. Each answer opens with the fix, then explains why.
Why won't my QR code scan?
A QR code usually won't scan because it's too small for the distance, too low-contrast, has its quiet-zone margin cropped, or i...
Why is my QR code blurry when printed?
A QR code prints blurry when it's scaled up from a low-resolution image. Export it as an SVG (which stays sharp at any size) or...
My QR code goes to the wrong page. How do I fix it?
If your QR code is editable (a dynamic code), you fix the wrong destination by repointing it from your dashboard, with no repri...
My QR code stopped working. Why?
A QR code that used to work and now leads nowhere almost always means the destination URL was moved, renamed, or taken down. Wi...
Can I change a QR code after printing it?
Yes, if it's a dynamic QR code. A dynamic code encodes a redirect you control, so you can change where it points anytime withou...
How do you track QR code scans?
You can track a QR code's scans only if the code points through a redirect you control: a dynamic (editable) code logs every sc...
Do QR codes expire?
No. A QR code itself never expires: the pattern is encoded data, and a static code works for as long as the page it points to e...
Do Canva QR codes expire?
No, not unless you set an expiry date. Canva's help center says a Canva QR code without an expiry date never expires. Canva mak...
Do Bitly QR codes expire?
No. Bitly's help center says the QR codes you create in Bitly never expire, and a code keeps working unless you delete it or th...
How big should a QR code be?
Print a QR code at least one-tenth as wide as the farthest distance it will be scanned from: a code read from 25 cm away needs ...
What's the difference between a static and a dynamic QR code?
A static QR code has the destination baked into its pattern and can never be changed or tracked. A dynamic QR code encodes a re...
Where can I find the QR codes I've scanned?
Neither iPhone nor Android keeps a dedicated list of every QR code you have ever scanned. What you actually have is your browse...
QR code glossary
Every term in these answers, defined in one plain sentence.
Reference tables
Print sizes, error-correction levels, and the rest of the numbers.