Answers
QR code problems, solved
Something broken? Start here. Each answer opens with the fix, then explains why.
Will my QR code stop working?
The printed image never expires. The company behind a dynamic code can switch it off. Start here.
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 stopped working has one of two causes. If it opens an error page, the page it points to was moved or taken down....
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...
Do QR codes expire?
No. The QR image itself never expires. A dynamic code stops working when the company behind it switches it off, most often when...
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 make on bitly.com never expire, and keep working unless you delete them. QRCG by ...
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?
Open your browser history. A scanned QR code opens a link, and that link is saved in Safari on an iPhone or Chrome on Android, ...
Can I reuse a sign rider QR code for my next listing?
Yes, if the code is dynamic. The printed pattern holds a short link that you control, so you change where it goes and hang the ...
How do I manage QR codes for several listing signs?
Make one code per sign, give each code a label that matches a number on the sign, and keep the set in one folder. Then you chan...
What happens to my printed QR codes if I stop paying?
With TangoQR, they keep working. Each code keeps sending people to the last link you set, on any plan, after you cancel. What y...
What size should a QR code be on a real estate sign rider?
About 5 inches (13 cm) wide on a standard 6-inch rider. A code reads from about ten times its width, so that is a read from abo...
What should a real estate QR code link to?
Link it to the page a buyer most wants: the listing, with photos and price. A page you control is the safest choice, because a ...
How do I use a QR code at an open house?
Put a QR code at the door that opens your sign-in form. Visitors scan it and type their own details on their own phone. After t...
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.