What is a QR code, and what happens when you scan it?
The term QR code comes from Quick Response. It is a square pattern that encodes information. In business, it usually stores a website address: someone opens their phone camera, points it at the code and taps the suggested link.
It is not a standalone app or a new search engine. A QR code provides a shortcut to somewhere the customer would otherwise have to type or search for. Most modern smartphone cameras recognise QR codes without an additional app, although the exact process depends on the device.
The code
The square printed on paper or shown on a screen that customers scan.
The destination
A webpage, menu, form, review page or other information.
The customer's action
They open, read, book, enquire or leave a review — only if they choose to.
For example, a QR code on a café table can open its current menu, while one on a roofer's leaflet can lead to examples of completed jobs. Both use the same technology but solve different business problems.
How can businesses use QR codes?
The right starting question is not "where else can we put a code?", but which customer action it would make easier. The following examples can work for different businesses.
| Situation | Where does the QR code lead? | Why is it useful? |
|---|---|---|
| Restaurant or café | Mobile-friendly food or drinks menu | You don't need to reprint menus whenever the online version changes. |
| Hairdresser or beauty salon | Online appointment booking | Customers can easily book their next appointment. |
| Garage or retail shop | Google review page | Makes it easier to invite voluntary, honest feedback. |
| Contractor or roofer | Portfolio page or quote request form | Connects printed materials with examples of actual work. |
| Accommodation provider | Guest information or booking page | Guests can easily find essential details. |
| Exhibitor or service provider | Digital business card and contact information | Contact details remain available after a conversation. |
A QR code cannot replace a good mobile website. If it takes customers to a tiny-text PDF, broken form or slow page, you have merely given them a less convenient journey.
Google reviews via QR code: an easier path to honest feedback
Customers may be willing to review a completed job, but might not search for the business on Google Maps. Your Google Business Profile's own review link or QR code can take them directly to the relevant page.
Google provides this feature free of charge. A QR code is therefore not a paid Google product, and it does not guarantee new reviews, five-star ratings or better rankings. You can politely ask genuine customers for feedback, but you must not offer gifts or discounts in exchange for reviews.
The existing guide to getting Google reviews explains the rules, message templates and how to create your review link.
If you want a ready-made, branded solution
Google Review QR Code, Ready to Use
Based on Google's free review feature, we can prepare a tested QR code and print-ready or digital materials tailored to your business. You pay for the preparation, checks and handover, not for a paid Google permission.
Static or dynamic QR code: which is right for you?
With a static QR code, the website address encoded in the pattern cannot change. It is simple and often sufficient, for instance when it points to a stable page whose content your business controls.
With a dynamic QR code, an intermediate, manageable link generally redirects visitors to a destination that can be updated later. This can be convenient for several campaigns or frequently changing pages, but it may depend on an external provider, subscription and the continuing operation of the intermediate URL.
For a stable review link
A simple, tested QR code is often enough, without an extra subscription.
For changing offers or campaigns
Check in advance whether you will need to change the destination later.
Important: updating the content of a webpage does not make a QR code "dynamic". The distinction is which address the code itself holds and who manages it.
Are QR codes free? When is professional help useful?
QR codes for ordinary URLs can often be generated for free. You do not need to buy a separate Google licence to use your Business Profile's own review QR code.
Costs may arise if you need custom branding, print-ready graphics, verification of multiple locations or landing pages, testing, or an organised process for using the codes. In those cases, you are paying for the work, not access to the code.
If you only want to share a link with a friend, you probably don't need an expert. But for a sign at a customer desk, trade fair or multiple premises over a long period, a wrong URL or poor print quality can create a frustrating customer experience.
Six common QR code mistakes businesses can avoid
- Wrong destination: The customer expects something different from what appears after scanning.
- A page that's difficult to use on mobile: Tiny text, an outdated menu or an overly long form.
- Code printed too small or distorted: The phone cannot reliably recognise it.
- Unverified link: A broken URL, unexpected redirect or link to another business's profile.
- Hard-to-see placement: Customers cannot find the code when they need it.
- No ongoing checks: The menu, booking page or third-party QR service stops working.
Test the code before and after printing, on several phones and in good and poor lighting. Add a clear label explaining where it leads, such as "Open menu" or "Leave an honest Google review".
Five questions before displaying a QR code
- What should become easier? Viewing a menu, booking, requesting a quote, leaving a review or finding information?
- Does the link go to the right place? Does it really open your business's current page?
- Is the destination usable on a phone? Can a guest or customer complete the task in a few minutes?
- Is the label clear? Does the customer know what will happen after scanning?
- Who will check it later? Will it still work after printing, moving premises or changing providers?
With clear answers, a QR code can be a useful customer communication tool. Without them, another printed sticker will not solve your customer acquisition problem.
Frequently asked questions about QR codes
Do I need a separate app to scan QR codes?
Many modern smartphone cameras recognise QR codes automatically. Older devices may behave differently.
Can a QR code expire?
The pattern of a static code does not expire, but the linked address can stop working. A dynamic QR service's expiry or subscription may also affect its intermediate link.
Can I change a QR code's destination later?
You cannot change an address encoded in a static QR code. Updating content at an unchanged URL you control is different; with a dynamic service, the redirect destination may also be adjustable.
Does it work without internet access?
A phone can sometimes recognise the code offline, but opening a webpage normally requires a connection.
Which QR code should I use for Google reviews?
A readable, tested QR code linking to your business's own official Google Business Profile review URL. Leaving a review remains voluntary.
Related guides and services
KRISZTIÁN KALUZSA · KNOWLEDGE BASE
A QR code is only the first step. The customer journey matters.
If you need your own professionally prepared QR solution for asking for reviews, we can discuss what suits your business.