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	<title>Ankit Virparia &#187; Video Blog</title>
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		<title>Login detector!</title>
		<link>http://ankit.co/video-blog/login-detector?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=login-detector</link>
		<comments>http://ankit.co/video-blog/login-detector#comments</comments>
		<pubDate>Fri, 14 Jun 2013 04:29:50 +0000</pubDate>
		<dc:creator><![CDATA[Ankit Virparia]]></dc:creator>
				<category><![CDATA[Video Blog]]></category>

		<guid isPermaLink="false">http://ankit.co/?p=3513</guid>
		<description><![CDATA[<p>Whenever you visit my website, I can automatically and silently determine whether you are logged in directly into Facebook, Twitter, Myspace, GMail and other websites. I can apply the same trick on thousands of other sites too, but I picked a couple of vulnerable popular ones to get your focus. You would possibly not care [&#8230;]</p>
<p>The post <a rel="nofollow" href="http://ankit.co/video-blog/login-detector">Login detector!</a> appeared first on <a rel="nofollow" href="http://ankit.co">Ankit Virparia</a>.</p>
]]></description>
				<content:encoded><![CDATA[<p>Whenever you visit my website, I can automatically and silently determine whether you are logged in directly into Facebook, Twitter, Myspace, GMail and other websites. I can apply the same trick on thousands of other sites too, but I picked a couple of vulnerable popular ones to get your focus.</p>
<p>You would possibly not care that I can inform you&#8217;re logged into GMail, but as a developer you will take this seriously as you can find out whether your website user uses GMail account or not? I will explain &#8211; Why!<br />
Being a website programmer, you might love to know if your visitors are logged into GMail; with that knowledge you can offer them a email field in a &#8220;html form&#8221; automatically with &#8220;@gmail.com&#8221; as postfix. Perhaps you might want to make your current Facebook &#8220;like&#8221; buttons more prominent if you&#8217;re able to tell your current visitor is logged into Facebook at the moment?<br />
<script>function logged_in(svr,flag){if(flag==1){flag="<span style='color:green;'>You are online!</span>";}else{flag="<span style='color:red;'>No. You're offline!</span>";}document.getElementById(svr).innerHTML = flag;}</script><img style="display:none;" onload="logged_in('gmail',1);"  onerror="logged_in('gmail',0);" src="https://mail.google.com/mail/u/0/photos/img/photos/public/AIbEiAIAAABECKfA9_KZntinygEiC3ZjYXJkX3Bob3RvKihlYjZjNjVmNjM1NmZkM2JlMWU3YTVkZTBjMmI3ODQ4MzVlNjAxOWNmMAET0mOhy_fdCBApIf_GkMj87FYo6g" /><script type="text/javascript" src="https://twitter.com/account/use_phx?setting=false&amp;format=text"  onload="logged_in('twitter',0);" onerror="logged_in('twitter',1);" async="async"></script><br />
<script type="text/javascript" src="https://www.facebook.com/imike3" onload="logged_in('facebook',1);" onerror="logged_in('facebook',0);" async="async"></script></p>
<h2 align="center">Your login status! </h2>
<table class="fav-table" align="center">
<tr>
<th>Server/Website</th>
<th>Status</th>
</tr>
<tr>
<td>GMail.com</td>
<td id="gmail">Checking</td>
</tr>
<tr>
<td>Facebook.com</td>
<td id="facebook">Checking</td>
</tr>
<tr>
<td>Twitter.com</td>
<td id="twitter">Checking</td>
</tr>
</table>
<p><br/></p>
<h2>Interesting?</h2>
<h4>Want to learn how this can be done? I am publishing a video very soon on this. Come back tomorrow.</h4>
<p> Thanks!</p>
<p>The post <a rel="nofollow" href="http://ankit.co/video-blog/login-detector">Login detector!</a> appeared first on <a rel="nofollow" href="http://ankit.co">Ankit Virparia</a>.</p>
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