I have such method which takes url f.e. : http://twitter.com/ttt or twitter.com/dasd and should show its domain with http: http://twitter.com and name twitter

def show_domain(url):
    sites = {
        'twitter': ['http://www.twitter.com/', 'twitter'],
        'facebook': ['http://www.facebook.com/', 'facebook'],
        'pininterest': ['http://www.pininterest.com/', 'pininterest']
    }

    if sites['twitter'][0] in url:
        link = sites['twitter'][0]
        brand = sites['twitter'][1]
    elif sites['facebook'][0] in url:
        link = sites['facebook'][0]
        brand = sites['facebook'][1]

    else:
        link = sites['pininterest'][0]
        brand = sites['pininterest'][1]
    return link, brand

Is there way to optimise this code?

I have such a method which takes a URL, such as http://twitter.com/ttt or twitter.com/dasd, and should show its domain with http: http://twitter.com and name twitter

def show_domain(url):
    sites = {
        'twitter': ['http://www.twitter.com/', 'twitter'],
        'facebook': ['http://www.facebook.com/', 'facebook'],
        'pininterest': ['http://www.pininterest.com/', 'pininterest']
    }

    if sites['twitter'][0] in url:
        link = sites['twitter'][0]
        brand = sites['twitter'][1]
    elif sites['facebook'][0] in url:
        link = sites['facebook'][0]
        brand = sites['facebook'][1]

    else:
        link = sites['pininterest'][0]
        brand = sites['pininterest'][1]
    return link, brand

Is there way to optimise this code?