Why only text is shown in the QR Reader and I'm not redirected to the website after scanning?

Some QR Code readers only recognize a link if a protocol https:// is placed in front of the URL. If you create a QR Code with the URL mysite.com without a protocol some readers will interpret this as plain text. Always create links with the protocol e.g. https://mysite.com in front of the URL to make sure that every reader redirects you to the desired website immediately after scanning.