HTML: 
@param url 
@example http://validator.w3.org/check?uri=referer

CSS3: 
@param profile
@param uri
@example http://jigsaw.w3.org/css-validator/check?profile=css3&uri=referer

508:  
@param url1
@param BROWSE_EMUL
@param RunJob
@param rptmode ((-1|0|1|2),(508,WCAG1,WCAG2,WCAG3))
@example http://www.cynthiasays.com/mynewtester/cynthia.exe?url1=http%3A%2F%2Fdomain.tld&rptmode=-1&BROWSE_EMUL=Cynthia+1.0&RunJob=Test+your+site