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Status response codes

The Document Checking Service (DCS) uses standard HTTP response code conventions.

HTTP response code Description
200 The DCS handled your request successfully.
404 The DCS URI is incorrect.
429 You have exceeded your allocated number of API calls.
503 HM Passport Office is having a planned outage.
5xx There is an internal server error.

Note that the HTTP 200 response code means the DCS handled your request successfully. It does not confirm whether the passport is valid or not. Likewise, an HTTP 200 does not necessarily mean that the DCS is operational.

This page was last reviewed on 12 November 2019.