An excellent resource to consult when wanting to cite a resource is our Citation Guide: http://guides.library.msstate.edu/citationguides. The tab labelled MLA will show you how to cite a website. Another web resource that will show you how to cite in MLA is the Purdue Online Writing Lab (OWL): https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_style_introduction.html
The general way both resources show to cite a website in MLA is:
Editor, author, or compiler name (if available). Name of Site. Version number. Name of institution/organization affiliated with the site (sponsor or publisher), date of resource creation (if available). Medium of publication. Date of access.
Here’s an example from Purdue OWL:
The Purdue OWL Family of Sites. The Writing Lab and OWL at Purdue and Purdue U, 2008. Web. 23 Apr. 2008.