AI & the web
QR code
A scannable two-dimensional code that can encode text or a destination such as a URL.
In everyday use
A printed guide includes a QR code linking to its online version.
What to keep in mind
Check the destination before sharing; a code can point to an unsafe page.
Also searched as: quick response code
Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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