> For the complete documentation index see https://domscan.net/llms.txt. Markdown versions of every docs page are available by appending .md to the page URL.

Source: https://domscan.net/docs/status-codes

# HTTP status codes

Explore HTTP status codes API documentation, request parameters, response fields, code examples, and error handling for DomScan integrations.

These are the HTTP status codes to handle, so you can tell apart successful responses, auth issues, credits, rate limits, missing data, and upstream failures.

200
**OK**

Request successful

201
**Created**

Resource created successfully.

400
**Bad Request**

Invalid parameters

401
**Unauthorized**

Missing or invalid API key/session.

402
**Payment Required**

Not enough credits to run this request.

403
**Forbidden**

Authenticated but not allowed to use this operation or mode.

404
**Not Found**

Requested resource or data was not found.

429
**Too Many Requests**

Rate limit exceeded

500
**Server Error**

Internal error

502
**Bad Gateway**

Upstream RDAP error

503
**Service Unavailable**

Upstream service unavailable or temporarily rate limited.

504
**Gateway Timeout**

Upstream lookup timed out.