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2023-02-02 18:56:00 -0500 |
Introduction to QR codes |
How and why to use QR codes to bridge the online and offline worlds |
What is a QR code and how can you create one? What are some alternatives to using QR codes? This introductory resource will help you explore your options. |
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QR codes (or Quick Response codes) are two-dimensional codes that you can scan with a smartphone. The code contains information, usually a site address, and once you scan it, the code connects you with a resource on the web.
QR codes are a tool used to connect web resources with physical places or processes, but they may not be right in every context. Before using this tool, ask yourself: why do I need a QR code?
It's important to know that there can be security issues with QR codes. Cybercriminals can tamper with QR codes, replacing them altogether with QR code stickers or interfering with the link that's embedded in the code. The FBI published guidance in 2022 that details steps you can take to keep yourself safe. If possible, it may be wise to consider using alternatives listed later in this article.
If you have assessed your situation and choose to use a QR code to bridge the online and offline worlds, here are a few examples of them used in ideal ways:
- Public health information. A poster with flu information in a bus stop can have a code that can lead to a website with additional information.
- Instructions for use. A piece of equipment can have a QR code that can bring up a reference manual or how-to video.
- Supplemental learning. Museums or historic sites can use QR codes on waysides to connect visitors with videos to enhance their visit.
Encourage your audience to use safety protocols and good judgement when using QR codes, including verifying links and avoiding downloads via QR code. Learn about more QR code safe practices with FBI's 2022 guidance for QR codes.
Although a QR code is a flexible tool for bridging the online and offline worlds, there are some other use cases where another technology would be more appropriate. For example, consider using another tool if you are using the QR code primarily as a:
- URL shortener. If using a QR Code to point to a web page, keep in mind the size of the QR code is directly proportional to the length of the URL it points to. This can become an issue if the generated QR code image becomes too large for use in printed materials. In that case, consider using a URL shortener.
- Click tracker. Creating a QR code allows you to track how many people have used it. But if you are going to use it solely for that purpose, it may not be the tool you need. Instead, consider using an analytics tool. Want to learn how? Take a look at DAP Learning Series: Creating Your Own Campaign URL Builder.
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If you’ve determined that a QR code is the best tool to meet your needs, here are a few options for how to create one.
- Right-click on the web page and select “Create QR code for this page.” It’s that easy!
- Use a QR code generator. There are several enterprise softwares used by federal agencies that provide QR code support. Talk with your supervisor or agency’s Office of the Chief Information Officer to find out which tools they recommend.
Want to learn more about QR codes? Join Digital.gov’s Web Analytics and Optimization Community, which brings together federal practitioners to make better decisions using web analytics and other optimization strategies.