• dQw4w9WgXcQ@lemm.ee
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    3 months ago

    I’m also bothered by very detailed QR codes. Milk cartons in my country had a QR-code for their website. It would be a ~10 letter url, maybe with a short path. But for some reason, the QR code was extremely detailed, as if it contained several kilobytes of data. I’m not sure if there were a large number of tracking-related parameters in the url, but it was very obviously unreasonably large.

    • renzev@lemmy.world
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      3 months ago

      Strongly agree on this one. Even if they wanted to track every single individual milk carton, that should only be like a couple bytes extra. Overly complex QR codes look ugly and are harder to scan

      • WaxedWookie@lemmy.world
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        3 months ago

        The complexity is likely a product of redundancy and error correction in the QR code rather than making it unique. You begin to run into issues with camera resolution and whatnot, but in theory those codes are likely more reliable.

          • Noxy@yiffit.net
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            3 months ago

            yeah, qr codes have different levels of error correction that you can specify, could very be well turned up to the max

            or the url has a ton of tracking params appended to it for some reason

            • dan@upvote.au
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              3 months ago

              or the url has a ton of tracking params appended to it for some reason

              Ideally you should use a short URL that redirects to the full URL. The tracking parameters should be on the long URL, not the short one.

              • Noxy@yiffit.net
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                3 months ago

                Why is that ideal? Seems more prone to problems if the short URL service shuts down or suffers outages.

                • dan@upvote.au
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                  3 months ago

                  You don’t have to use a third-party short URL service. It can be hosted on your own site.

                  A lot of people are already using a third-party short URL service like qrco.de because they don’t realise you don’t actually need a service like that to make a QR code.

                  • Noxy@yiffit.net
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                    3 months ago

                    Regardless, why bother running or using a short URL service? QR codes can easily hold a full URL and more, and QR codes are not (nor are they meant to be) human readable, so what’s the benefit?