# Syntax Check

The syntax check is one of the checks to which DENIC submits the data provided by a member in a request. Within the scope of these checks, various requests are checked that can be composed of contact objects, domain objects and other request parameters.

The checks are carried out for both request formats, i.e. key/value and XML. The permitted data are usually described in detail in tables in the documentation. They include the value range, permitted length and similar information. You find the details in the description of the requests under Requests to the .de Registration System.

Here is a list of the requests which are subjected to the syntax check:

- contactCREATE Request,
- contactUPDATE Request,
- domainCREATE Request,
- domainCHHOLDER Request,
- domainCHPROV Request and
- domainUPDATE Request.