Code for seeing if a website is down?
<p>I'm trying to replicate sites like <a href="http://www.downforeveryoneorjustme.com" rel="nofollow">http://www.downforeveryoneorjustme.com</a> or <a href="http://doj.me" rel="nofollow">http://doj.me</a>. Any ideas about the coding?</p>

<p>Edit: could I also have some source code examples?</p>
