Ever had a QR code stop working? Often, the problem lies with its redirect link, not the code itself. Here's how to understand the difference between static and dynamic QR codes and what to do when they fail.
Have you ever scanned a printed QR code only for it to suddenly stop working? Don't worry, the code itself is often innocent. The problem usually lies elsewhere, and understanding this can save you a lot of time and frustration.
A QR code isn't just a link; it's a 'payload' carrying information. There are two main types: static and dynamic. A static QR code is straightforward. When you scan it, it takes you directly to the content it holds, like a website URL (e.g., https://example.com/menu), Wi-Fi credentials, or a vCard. There are no extra steps here, so the chances of the code itself failing are minimal; only if the original destination link is broken.
Dynamic QR codes, however, are different. Their payload isn't the content directly, but rather a 'pointer'—a short link (like https://short.example/abc123) that acts as an intermediary. When you scan a dynamic code, your phone first reads this short link, which then tells your browser where the final destination is. This extra hop is the core feature of dynamic codes; it allows you to change the destination without reprinting the code. But this convenience also introduces a single point of failure that you often don't control.
So, when someone says 'my free QR code stopped working,' the first question isn't 'what's wrong with the squares?'. Instead, it's 'was the payload a pointer, and is that pointer still alive?'. If a printed menu code now lands on an error page, don't regenerate it yet. First, scan it and read the URL the scanner shows *before* tapping. If it's a short domain you don't recognize or control, you're dealing with a dynamic code.
Open that short URL in a desktop browser and watch the address bar. Does it stay put, bounce through two or three redirects, or land on a parking page? Each additional hop means another owner who could potentially break your code.
Next, open the final destination directly (the link the code was *supposed* to lead to). If that final page is gone, then the QR code is innocent—your problem is with your original page, and you need to fix that. If the final page loads perfectly but the short link doesn't work (meaning the redirect failed), then the redirect record is dead: perhaps it was deleted, downgraded, or orphaned when an account lapsed. This distinction is crucial for determining the fix. A dead page is fixed on your site. A dead redirect needs to be fixed within the redirect service—or sometimes, it cannot be fixed at all if you no longer have control over it. Understanding this can save you a lot of hassle.
A QR code isn't just a link; it's a 'payload' carrying information. There are two main types: static and dynamic. A static QR code is straightforward. When you scan it, it takes you directly to the content it holds, like a website URL (e.g., https://example.com/menu), Wi-Fi credentials, or a vCard. There are no extra steps here, so the chances of the code itself failing are minimal; only if the original destination link is broken.
Dynamic QR codes, however, are different. Their payload isn't the content directly, but rather a 'pointer'—a short link (like https://short.example/abc123) that acts as an intermediary. When you scan a dynamic code, your phone first reads this short link, which then tells your browser where the final destination is. This extra hop is the core feature of dynamic codes; it allows you to change the destination without reprinting the code. But this convenience also introduces a single point of failure that you often don't control.
So, when someone says 'my free QR code stopped working,' the first question isn't 'what's wrong with the squares?'. Instead, it's 'was the payload a pointer, and is that pointer still alive?'. If a printed menu code now lands on an error page, don't regenerate it yet. First, scan it and read the URL the scanner shows *before* tapping. If it's a short domain you don't recognize or control, you're dealing with a dynamic code.
Open that short URL in a desktop browser and watch the address bar. Does it stay put, bounce through two or three redirects, or land on a parking page? Each additional hop means another owner who could potentially break your code.
Next, open the final destination directly (the link the code was *supposed* to lead to). If that final page is gone, then the QR code is innocent—your problem is with your original page, and you need to fix that. If the final page loads perfectly but the short link doesn't work (meaning the redirect failed), then the redirect record is dead: perhaps it was deleted, downgraded, or orphaned when an account lapsed. This distinction is crucial for determining the fix. A dead page is fixed on your site. A dead redirect needs to be fixed within the redirect service—or sometimes, it cannot be fixed at all if you no longer have control over it. Understanding this can save you a lot of hassle.
