用于检查网站是否具有搜索引擎友好URL的Ruby代码

I am developing an application in rails which requires to check whether the entered website has search engine friendly URLs generated or not.A solution i have in mind is using nokogiri to parse the HTML of the site and look in the link tag for finding URLs and see if they are search engine friendly.Is there any other way this can be done?Any help would be really great.I am developing an application in rails which r