Review QR Code Widget
Make a scan-to-review card for any review page - Google, Trustpilot, Yelp, Tripadvisor, Facebook or your own form. The platform is recognised from the link and shown with its mark, and the card comes in table-tent, postcard and sticker sizes that print cleanly or download as a 300 dpi PNG.
Live preview
Under the widget on your page: Powered by A2Z Tools
Embed code
<div data-a2z-kit="review-qr-code"></div> <script async src="https://a2z.tools/embed/kit.js" referrerpolicy="no-referrer"></script>
One small script from A2Z draws the component on your page inside its own Shadow DOM. It loads no social-network or tracking scripts and sets no cookies. How the A2Z kit works.
Works with
How it works
Paste the address of the page where customers write a review. The kit's network registry looks at the host name - never at a label - to decide the platform: g.page and search.google.com are Google, trustpilot.com is Trustpilot, the yelp and tripadvisor country domains are Yelp and Tripadvisor, facebook.com is Facebook; a bare Google Place ID is turned into the Google writereview address. Anything else is treated as your own page and shown by its real host name, so trustpilot.com.evil.example can never wear the Trustpilot mark. The card shows the platform chip, your business name, a headline (Enjoyed your visit? by default), a short message that names the platform, the QR code and, if you like, the address in small print for people who prefer typing. The code is generated at error correction level M, which survives a coffee ring or a fold, in your colour only when that colour keeps at least 4.5:1 contrast with the white background; paler colours fall back to near-black because many phone scanners fail on low contrast. Print and Download build the same 300 dpi image: 4 x 6 inches portrait for a table tent, 6 x 4 landscape for a postcard, 3 x 3 for a sticker, each with at least 60 px of white quiet zone around the code.
Method
- Platform = A2ZNetworks.detectProfile(link) by host name; google, trustpilot, yelp, tripadvisor, facebook keep their name and mark, anything else shows its host
- Accepted links: http(s) only; mailto:, tel:, javascript:, data: refused
- QR colour kept only if WCAG contrast(colour, #ffffff) >= 4.5, else #10162b
- Image sizes at 300 dpi: table tent 1200 x 1800 px (4 x 6 in), postcard 1800 x 1200 px (6 x 4 in), sticker 900 x 900 px (3 x 3 in)
- QR: qr-code-styling 1.8.4, error correction M (about 15% of the code can be damaged and still read)
Worked examples
A Trustpilot invitation link
Inputs: link = https://www.trustpilot.com/evaluate/riverside.example, size postcard
Result: Chip: Trustpilot mark + Review us on Trustpilot; message: Scan the code to leave us a review on Trustpilot. Good or bad, we read every one.; Download PNG: 1800 x 1200 px
The host trustpilot.com decides the platform; the landscape postcard image is 6 x 4 inches at 300 dpi.
A look-alike host
Inputs: link = https://trustpilot.com.evil.example/review/x
Result: Chip: globe + Review us on trustpilot.com.evil.example
The real host name is shown; only the genuine domain earns the Trustpilot mark.
A pale brand colour
Inputs: qrcolor = #ffcc00
Result: The code is drawn in #10162b
Yellow on white is about 1.6:1, under the 4.5:1 minimum, so the scannable default is used.
Limitations
- Shows no rating, stars or review count; the card is an invitation, not a score.
- One link per card; make one card per platform if you collect reviews in several places.
- It cannot confirm that the link really is your review page - scan the printed card once before you laminate a stack.
- On publisher pages the print image is sent through a hidden frame; very strict Content-Security-Policy settings may fall back to printing the whole page.
Where publishers use it
- A restaurant printing table tents with its Tripadvisor review link for every table, and a sticker version for the takeaway bags
- A hotel adding the postcard size to its welcome folder with a Google review code, and a Trustpilot one in the checkout email
- A dog groomer or barber downloading the sticker PNG to put on the mirror and the appointment cards
- A garden centre with its own feedback form making a QR card that shows its own domain rather than a review platform
Questions
Which review sites does it recognise?
Google (g.page short links, search.google.com writereview links and bare Place IDs), Trustpilot, Yelp including its UK, Canadian and Australian domains, Tripadvisor including its main country domains, and Facebook. Any other https address still works: it is shown as your own review page with its real host name instead of a platform mark.
Why did my brand colour turn black on the QR code?
Phone cameras read a QR code by contrast, and light colours such as yellow, pastel or mid-grey on white often fail in a dim restaurant. The widget keeps your colour only when it has at least 4.5:1 contrast against the white background - the WCAG threshold for normal text - and otherwise uses near-black. Darker shades of most brand colours pass.
What paper size should I print on?
Print sends a 300 dpi image at its real size: the table tent is 4 x 6 inches (fold a 4 x 12 strip or use a 4 x 6 acrylic stand), the postcard 6 x 4 inches, and the sticker 3 x 3 inches for label sheets. Turn off fit to page in the print dialog to keep the exact size; Download PNG gives the same image for a print shop.
Can the card send unhappy customers somewhere else?
No. One card holds one link and every person who scans it lands on the same review page. Routing people by how satisfied they say they are is review gating, which Google's policy and the FTC's review rule both prohibit; Trustpilot's guidelines also ask businesses to invite all customers.
Is it allowed to put the Trustpilot or Yelp logo on my card?
The card uses each platform's simple mark next to its name, as a label for where the link goes, and draws it in the platform colour without altering the shape. If your printed material is part of a larger campaign, check the platform's own brand guidelines; Trustpilot, for example, publishes rules for using its name and logo.
Sources
- Create a Google link or QR code to request reviews - Google Business Profile Help . Where owners copy the short review link that this card can encode. Checked 2026-10-01.
- Understanding Success Criterion 1.4.3: Contrast (Minimum) - W3C WCAG 2.2 . The 4.5:1 ratio and the relative-luminance formula used for the QR colour check.
- Prohibited and restricted content: Fake engagement - Google Maps User Contributed Content Policy . No selective solicitation of positive reviews. Checked 2026-10-01.
Cite or recommend this tool
If you reference this tool in an article, course or documentation, these formats are ready to copy. They are optional - nothing is added to your site unless you paste it.
A2Z Tools Review QR Code https://a2z.tools/embed/review-qr-code
<a href="https://a2z.tools/embed/review-qr-code">A2Z Tools Review QR Code</a>
[A2Z Tools Review QR Code](https://a2z.tools/embed/review-qr-code)
Review QR Code by A2Z Tools - https://a2z.tools/embed/review-qr-code
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