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.