Long complicated strings like Bitcoin addresses are perfect for QR codes. Neither parties need to type anything in, and it only requires scanning a code. It provides a great user experience and has definitely brought QR codes more mainstream.
There is no reason to store a website in a QR code as that URL could be anything. Could even lead to a potentially sketchy site if used with a URL shortener. If you have to create a QR code with a site, use URL shorteners that allow previews ( https://preview.tinyurl.com/cqvga for example ) so the scanning party can verify.
There are many things that QR codes can do, including but not limited to:
- Add contacts to your device (vCard)
- E-mail templates (Using mail:)
- Make a phonecall (Using tel:)
While QR codes certainly have their place, try not to overuse them!
Here is an example of the unknown website issue I raised.
Feel free to scan this QR code:
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