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HTTP Status Reference

Searchable reference for all HTTP status codes with descriptions.

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100

Continue

Server received request headers, client should proceed.

200

Request succeeded.

201

Created

Resource created successfully.

204

No Content

Success, but no content to return.

301

Moved Permanently

Resource moved to a new URL permanently.

302

Found

Temporary redirect to another URL.

304

Not Modified

Cached version is still valid.

400

Bad Request

Server cannot process due to client error.

401

Unauthorized

Authentication required.

403

Forbidden

Server understood but refuses to authorize.

404

Not Found

Resource not found.

405

Method Not Allowed

HTTP method not supported for this resource.

409

Conflict

Request conflicts with current server state.

422

Unprocessable Entity

Request well-formed but unable to process.

429

Too Many Requests

Rate limit exceeded.

500

Internal Server Error

Server encountered an unexpected condition.

502

Bad Gateway

Server received invalid response from upstream.

503

Service Unavailable

Server temporarily unable to handle request.

504

Gateway Timeout

Upstream server didn't respond in time.

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