QR codes on the Web
Can we just agree that QR codes are only appropriate for printed material, or shown on large displays / TVs.
They are almost pointless on your Web page.
By far the vast majority of visitors to a Web page are using a mobile device. You know, that same device that scans the QR code. There's is no practical way to scan while you read on the same device.
Hard facts
My own blog.... 73.6% of reads are via a mobile
Globally... 62.7%.
(via Statista)