HTTP Status Codes
Browse common HTTP status codes with meanings. Search & copy instantly.
Click a code to copy
How it works
Three simple steps.
Search
Type a number (404) or a word (forbidden) to filter the list instantly.
Find the meaning
Each entry shows the code, its English phrase, and a Chinese explanation.
Copy
Click any code to copy it to your clipboard.
Why use Ercc HTTP Status Codes?
Quick reference
A clean, searchable table of the most common status codes developers encounter.
Bilingual
Every code shows both the standard English phrase and a Chinese explanation.
Free & fast
No logins, no fluff. Just the codes you need, instantly.
What are HTTP status codes?
An HTTP status code is a three-digit number a server returns to indicate the outcome of a request. Codes fall into five classes: 1xx informational, 2xx success, 3xx redirection, 4xx client errors, and 5xx server errors.
Understanding status codes is essential for debugging APIs and websites. A 404 means the resource was not found, a 500 means the server failed, and a 301 means the resource moved permanently.
Most common status codes
These are the codes you will see most often:
- 1. 200 OK —the request succeeded.
- 2. 301 Found —the resource moved permanently.
- 3. 404 Not Found —the resource does not exist.
- 4. 500 Internal Server Error —the server failed.
Use the table above to look up any code quickly and free.
Frequently Asked Questions
A 404 Not Found means the server could not find the requested resource. It usually means the URL is wrong, the page was moved, or the resource was deleted.
401 Unauthorized means you are not logged in or did not provide valid credentials. 403 Forbidden means you are authenticated but do not have permission to access the resource.
A 502 means a gateway or proxy server received an invalid response from an upstream server. It is often a temporary server-side issue on the host.
A 500 Internal Server Error is a catch-all for server-side failures. Check the server logs, review recent code or configuration changes, and verify the server is not overloaded.
Yes, 100% free with no limits. Everything runs locally in your browser.