12 Common Reasons Your QR Code Isn't Working and How to Fix Them

QR codes have become an essential tool for marketing, payments, and contactless interactions. However, they don’t always scan correctly. If your QR code isn’t working, it may be due to design flaws, poor printing, or technical issues. Let’s explore 12 common problems and how to fix them.

1. Poor Contrast Between Code and Background

A QR code should always have a high-contrast color scheme, ideally black on a white background. Light-colored QR codes on bright backgrounds can be difficult for scanners to detect. Additionally, avoid using similar colors for the foreground and background, such as dark blue on black.

2. Low Image Resolution

If your QR code appears pixelated or blurry, it might not scan properly. Ensure the image is high resolution before printing or displaying it digitally. A recommended minimum size is at least 300 dpi for print and a minimum of 2x2 cm for digital use. Always test before printing.

3. Over-Customization

While customizing QR codes can be visually appealing, excessive design modifications (such as rounded edges, gradients, or missing key elements) may reduce their functionality. If you want to brand your QR code, use a tool like the GoTo.now QR code generator to ensure proper balance between customization and scanability.

4. Incorrect Link or Expired URL

If the QR code directs to a broken or expired link, it won’t work. Use a reliable URL shortener like GoTo.now to ensure your link is active and editable. A dynamic QR code allows you to change the destination link even after it’s printed.

5. Excessive Data Making the Code Too Dense

QR codes with too much embedded data become dense and harder to scan. If your code contains long URLs or too much text, it increases the risk of scan failure. Use a short link through a URL shortener to keep QR codes simple and easily scannable.

6. Printing Issues

Distorted, smudged, or overly small QR codes printed on materials with reflective surfaces can interfere with scanning. Glossy surfaces can reflect too much light, making scanning difficult. Always print in high quality and test before distribution. A matte finish is preferable.

7. Incorrect QR Code Format

Some scanners may not support certain QR code formats, such as vCard, PDF, or Wi-Fi QR codes. Ensure you're generating the right type of QR code for your audience and their scanning devices. Test on multiple devices before releasing it to a wide audience.

8. Damaged or Obscured QR Codes

If a QR code is scratched, torn, or partially covered, it won’t scan. Ensure it's placed where it won’t be obstructed, such as behind glass or under plastic. If placing on a vehicle or sign, ensure it’s positioned in a protected area.

9. Broken Redirection Links

Even if a QR code scans, the destination link might be broken. Always check the link before publishing. You can use the GoTo.now link checker to verify URLs before distributing QR codes widely.

10. Scanning Distance Issues

Scanning from too far or too close can affect readability. QR codes should be appropriately sized for the intended distance. A billboard QR code needs to be significantly larger than a business card QR code. Test viewing distances before finalizing print sizes.

11. Poor Lighting Conditions

Low light or glare can make QR codes difficult to scan. Ensure proper lighting when placing QR codes on posters, menus, or signs. If placing on an outdoor sign, consider adding a light source nearby to aid scanning in low-light conditions.

12. Unsupported QR Code Type

Not all QR code scanners support every type of QR code. Some older devices may struggle with advanced QR formats. Ensure that your intended audience uses compatible devices or apps that can read the QR code properly.

By addressing these issues, you can ensure your QR codes work smoothly. If you need a reliable way to create high-quality QR codes, try the GoTo.now QR code generator today. Make sure your QR codes scan perfectly every time by following these best practices.