What IS a 404 Not Found Error?!
HTTP 404 – Not Found is one of the most common status codes you’ll see when working with the web. It means the client (like your browser or an API consumer) successfully reached the server, but the specific resource they asked for doesn’t exist.
Examples you’ve probably seen in real life:
• Typing the wrong URL (typo in /users/123 instead of /user/123).
• A page was deleted or moved without a redirect.
• Broken links pointing to resources that aren’t there anymore.
From a developer’s perspective, returning a 404 is important because it tells the client:
• ✅ The server is alive and responding.
• ❌ The requested thing just isn’t available.
This is different from errors like 500 (Internal Server Error), which means something broke on the server side.
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