What does this tool do?
The HTTP Status Codes tool gathers every standard response code that web servers return, each with its meaning, on a single reference page. It helps web developers, API designers, and anyone debugging site errors quickly find out what a code means.
How to use it
- Enter an address, domain or value.
- View the results instantly.
- Copy the details you need.
Codes fall into five classes
HTTP status codes are grouped by their first digit into five classes: 1xx informational, 2xx success, 3xx redirection, 4xx client error, and 5xx server error. For example, 200 signals a successful request, 301 a permanent redirect, 404 a resource that was not found, and 500 an internal server error. Knowing the first digit lets you instantly tell whether a problem is on the client side or the server side before reading the detailed description.
Commonly confused codes
401 and 403 are often mixed up: 401 means authentication is missing or invalid, while 403 means that even with a verified identity you do not have permission to access the resource. Similarly, 301 is permanent and 302 is temporary, and search engines treat them differently. 429 tells you that you have sent too many requests, while 503 reports that the server is temporarily unavailable. Understanding these distinctions makes debugging and designing correct API responses much easier.
Frequently asked questions
What is the difference between a 301 and a 302 redirect?
301 is a permanent redirect, and search engines treat the new address as permanent and pass link value to it. 302 is temporary and implies the old address will be used again, so value stays with the old URL.
What is the difference between 404 and 410?
404 means the resource cannot be found right now and might return later. 410 explicitly states the resource has been permanently removed, which is a stronger signal for search engines to drop the page from their index.
Is 418 a real code?
Yes, 418 'I'm a teapot' comes from an April Fools' RFC and is officially registered. It is not used for any functional purpose in production APIs, but it is technically a valid code.
Is HTTP Status Codes free?
Yes. HTTP Status Codes and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. HTTP Status Codes works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.