How to know whether a WebService WSDL file is of SOAP version 1.1 or 1.2 compliant

If your WSDL file has a namespace named "soap12" inside the <wsdl:definitions   tag, as shown below:

<wsdl:definitions xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"



Then the wsdl is SOAP 1.2 version compliant /compatible.


References:
http://schemas.xmlsoap.org/wsdl/soap12/soap12WSDL.htm