Every response on the Web comes with an HTTP status code. Users don’t see most of them on their browsers. The browser just uses them to do its work. The most common one, 200, says that the request succeeded. Others indicate redirection to another URL, a software error, or a problem delivering the requested content.
The last category — that the server can’t or won’t deliver what was requested — uses numbers starting with 4, and those often are visible on the browser. Everyone has run into code 404, “not found.” It comes back when the user enters the wrong URL, or when the page it used to serve is no longer available.
Code 403, meaning “forbidden,” isn’t as common, but most regular Web users have seen it. The World Wide Web Consortium’s official description is “The server understood the request, but is refusing to fulfill it.” It generally means that the content exists but isn’t available to the user.
Sometimes this code indicates a bug on the server side. If OrangeWebsite hosts your content, we’ll help you to make sure your audience doesn’t get it by mistake.