4xx Client Error
HTTP 451 Unavailable For Legal Reasons
The resource is unavailable because of a legal demand.
Check a URL's HTTP statusWhat 451 means
Used when content is blocked due to court orders, government censorship, or similar legal requirements.
Common causes
- A legal takedown or geo-restriction required by law.
How to fix it
- No technical fix; the restriction is legal.
How to check a status code
Enter a URL in the HTTP Status Checker to see its status code, every redirect hop, and response time. For redirect-heavy pages, the Website Speed Test shows how much time redirects add.
FAQ
- What does HTTP 451 mean?
- 451 Unavailable For Legal Reasons is a 4xx client error status code. The resource is unavailable because of a legal demand.
- What causes a 451 error?
- A legal takedown or geo-restriction required by law.
- How do I fix HTTP 451?
- No technical fix; the restriction is legal.
Defined in RFC 7725.
Other 4xx client error codes
400 Bad Request401 Unauthorized403 Forbidden404 Not Found405 Method Not Allowed406 Not Acceptable408 Request Timeout409 Conflict410 Gone413 Content Too Large414 URI Too Long415 Unsupported Media Type418 I'm a teapot422 Unprocessable Content425 Too Early429 Too Many Requests431 Request Header Fields Too Large