Disclosed is a computer-implemented method and system of inferring a web service infrastructure from a web service hosted on a web server. The method includes: downloading a web service description language (WSDL) file describing the web service from a location on the web server identified by a uniform resource locator (URL); identifying at least one of a web service design technology and a web service design technology provider from character strings indicative of the technology and implementation, respectively, in at least one of the URL and WSDL file; and inferring the web service infrastructure from the identified web service design technology and web service design technology provider. A computer program product having aspects of the method as program code is also disclosed.