mobile website - QR code with URL, does it *REALLY* need the http://? -

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it seems (if not all) qr readers on iphone handle urls without http:// fine wondering if universal? android? blackberry? there rfc somewhere should reading

i'm building qr management/url shortener system , wondering if absolutely necessary. if not, can drop 7 characters qr's urls , make them lowest level of complexity (16 characters or less). which, i've read, thing™.

i haven't found absolute documentation says must have it. but... after testing number of qr reader apps, it's clear many of them 'guess' @ url if there no http:// in it. many not , display string. since it's url, need it. , if apps won't read it, have bow them , add of them.


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