go.exampledomainname.com
Number of letters: 37
go.exampledomainname.com/link
Branded subdomain โ familiar for email and web
Score:
From Plum Amazing & iWatermark+
QR Code Print & Scannability Simulator
Will your QR code actually scan on a business card, inkjet poster, or tiny product label? This free tool estimates how URL length, print size, scan distance, paper quality, and contrast affect real-world scannability โ before you commit to a print run.
Why do short domains matter? Why are they scarce?
Every character in your URL becomes part of the QR grid. Shorter domains mean simpler codes that scan more reliably on small print. The catch: most short names were registered long ago, so good ones are rare and often expensive. This page helps you see the tradeoff before you buy a domain or print thousands of stickers.
Your phone is part of the test
Newer phone cameras have better lenses and sensors, so they capture cleaner QR images with fewer errors. Modern phones also use smarter software: they can compensate for dim light, shaky hands, glossy paper, and imperfect inkjet ink. When several QR codes appear in view, newer cameras often decode the one centered on screen first.
Live simulator. Test how effective your QR code is.
As you adjust the settings in real time, watch the QR Code visibly change โ density, module size, and scannability score update instantly.
Simulator content on this page is protected against casual copying. Determined developers can still inspect browser code โ this discourages quick duplication, not determined cloning.
Compare short-link domains
The same slug with different domains produces visibly different QR density. Shorter domains mean fewer dots and simpler codes โ especially on stickers, cards, and pole flyers.
domainname.com
Number of letters: 27
domainname.com/page
Readable full-name domain
Score:
domain.com
Number of letters: 23
domain.com/shop
Shorter root domain
Score:
dm.com
Number of letters: 19
dm.com/info
Very short โ simplest example grid
Score:
Why this page exists
Less data, simpler code
A QR code is a grid of black and white modules. Shorter URLs need fewer modules, which means bigger dots at the same print size. Bigger dots are easier for phone cameras to lock onto โ especially on inkjet posters, pole flyers, and tiny labels.
Print quality matters as much as URL length
Business cards, glossy packaging, and outdoor posters all punish small or dense QR codes. Bleed, glare, fading, and low-resolution printers can close the gaps between modules. Sometimes the fix is better paper or a better printer. Sometimes it is a shorter link.
Phones are part of the equation
Newer phone cameras tolerate smaller modules better than older ones, but you cannot control what customers carry. Design for the worst reasonable case: small print, arm-length scanning, average lighting, and a less-than-perfect camera sensor.
FAQ
Why does a shorter URL make QR codes easier to scan?
QR codes store your link as data. Longer URLs need a denser grid with smaller dots (modules). Smaller dots are harder for phone cameras to read, especially on inkjet prints, glossy paper, or small stickers.
What print size should I use for a business card QR code?
Many business cards work at 0.75 inches or larger, but only if the URL is short and contrast is strong. Use the simulator above with the business-card preset and aim for a high scannability score before printing.
Why do inkjet poster QR codes fail more often?
Inkjet ink can bleed into paper fibers, slightly closing the gaps between QR modules. That is worse on cheap paper, outdoor posters, and very small codes. A shorter URL, larger print size, or laser/offset printing improves reliability.
What is the quiet zone, and how is it different from QR version?
The quiet zone is the blank margin around the QR code โ it is not the same as QR version. Version is the grid size (how many rows and columns of dots) and is driven mainly by URL length and error correction. The quiet zone only adds empty border space; it does not change how dense the dots are, but cropping it off can still break scans.
Is scanning a QR on a computer monitor different from paper?
Yes. A backlit screen usually offers sharper edges and higher contrast than ink on paper, so digital QRs often scan more easily. Glare on the glass, low brightness, and fingerprints can still cause problems.
Does the phone camera matter?
Yes. Newer phones usually have better optics and smarter QR decoding. They cope better with low light, shaky hands, glossy paper, imperfect inkjet prints, and scenes where several QR codes appear nearby โ often prioritizing the code centered in the frame.
Why are short domain names so hard to find?
Billions of domains are already registered, and the shortest memorable names were taken years ago. That is one reason this page exists โ to show why shaving even a few characters off your link can matter for QR codes, and why finding a good short name takes patience.
Is this simulator exact?
No. It is a practical estimator based on QR version capacity, module size, distance-to-size ratio, print quality, contrast, and surface type. Real-world results still depend on the phone camera, lighting, curl, and damage. Always test a physical print.
Disclaimer
This simulator is an educational estimator, not a laboratory measurement. QR capacity, camera behavior, paper stock, ink chemistry, laminate, curl, damage, and lighting all change real-world results. The variables here are themselves variable. Always print a physical test sample before a large production run.
Plum Amazing built this tool for our own QR workflows in apps like iWatermark+ and for short links we manage internally. Results may differ on your hardware, domains, and print vendors.
Create QR codes with iWatermark+
iWatermark+ for iOS is excellent for placing QR codes directly on photos and images โ at different sizes, on busy backgrounds, and in situations where you want credit for your work. If you shoot in the field and want people to know you took the photo, a watermark can help protect it and can give people a way to reach you.
Short links for QR-heavy work
A shorter domain can make the difference between a QR that locks focus instantly giving access to your link or one that frustrates people on a business card or pole poster. Use the compare section above with your own candidate domains before you print.