I have a problem using the following html code on my website made in wordpress
<li><a href="www.twitter.com" class="icoTwitter" title="Twitter"><i class="fa fa-twitter"></i></a>
</li>
What I think is doing a redirect to the twitter page but when I hit the button send me to mipaginaweb / www.twitter.com and I get the following screen:
Why is this happening?