HTTP Status Code Lookup
Developer ToolsMeaning of every HTTP status code
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All history →HTTP Status Code Lookup — at a glance
Find out what a status code like 404 or 301 really means, with plain-English explanations.
How to use it — step by step
A code number or a keyword. Leave it empty to see the full list.
Paste your input
Paste or type your content into the big input box.
Look Up
Press the button. The result is created instantly on your device.
Copy the result
Check the output and press Copy to use it anywhere.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
What is a 404 error?+
The server could not find the page you asked for — often a broken or mistyped link.
301 vs 302?+
301 is permanent and passes SEO value to the new URL; 302 is temporary.
What causes a 500 error?+
An unexpected problem on the server, like a bug or a crashed service.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.