title: Weird 404 errors recorded in Google Analytics; mentions doubleclick and DARTiframe
body: <p>I started a website and everything's going very well. But on Analytics, I'm seeing a weird 404 URLs on the Behavior tab. I am using AdSense and nRelate to serve ads.</p>
  
  <p>I am seeing these URL's in Google Analytics:</p>
  
  <pre><code>/404.html?page=/doubleclick/DARTIframe.html?gtVersion=200_41&amp;mediaserver=http://s0.2mdn.net/879366&amp;xpc={"cn":"peerIframe58527422","tp":null,"osh":null,"pru":"http://sdherald.com/doubleclick/DARTIframe.html?gtVersion=relay_200_41&amp;mediaserver=http://s0.2mdn.net/879366","ppu":"http://googleads.g.doubleclick.net/robots.txt","lpu":"http://sdherald.com/robots.txt"}&amp;from=http://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-8282582681724773&amp;format=300x250&amp;output=html&amp;h=250&amp;slotname=3724546046&amp;adk=672603818&amp;w=300&amp;lmt=1404675131&amp;flash=0&amp;url=http://sdherald.com/life-hacks-vinegar/?f=f&amp;dt=1404653529944&amp;bpp=1184&amp;shv=r20140630&amp;cbv=r20140417&amp;saldr=aa&amp;prev_fmts=320x50,300x250_as&amp;correlator=1404653530086&amp;frm=20&amp;ga_vid=1386066698.1404653530&amp;ga_sid=1404653530&amp;ga_hid=481051372&amp;ga_fc=1&amp;ga_wpids=UA-52432983-1&amp;u_tz=-360&amp;u_his=1&amp;u_java=0&amp;u_h=480&amp;u_w=320&amp;u_ah=460&amp;u_aw=320&amp;u_cd=32&amp;u_nplug=1&amp;u_nmime=34&amp;dff=open sans&amp;dfs=14&amp;adx=10&amp;ady=2614&amp;biw=320&amp;bih=372&amp;eid=317150304&amp;oid=3&amp;ref=https://m.facebook.com&amp;rx=0&amp;eae=0&amp;fc=3&amp;vis=1&amp;abl=CS&amp;ppjl=d&amp;fu=256&amp;ifi=3&amp;xpc=uwbOj59GAe&amp;p=http://sdherald.com&amp;dtd=1212
  
  /404.html?page=/doubleclick/DARTIframe.html?gtVersion=200_41&amp;mediaserver=http://s0.2mdn.net/879366&amp;xpc={"cn":"peerIframe58527753","tp":null,"osh":null,"pru":"http://sdherald.com/doubleclick/DARTIframe.html?gtVersion=relay_200_41&amp;mediaserver=http://s0.2mdn.net/879366","ppu":"http://googleads.g.doubleclick.net/robots.txt","lpu":"http://sdherald.com/robots.txt"}&amp;from=http://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-8282582681724773&amp;format=728x90&amp;output=html&amp;h=90&amp;slotname=6318085641&amp;adk=3863123026&amp;w=728&amp;lmt=1404672595&amp;flash=0&amp;url=http://sdherald.com/life-hacks-vinegar/?f=f&amp;dt=1404654595455&amp;bpp=24&amp;shv=r20140630&amp;cbv=r20140417&amp;saldr=aa&amp;correlator=1404654595852&amp;frm=20&amp;ga_vid=1756553763.1404654595&amp;ga_sid=1404654595&amp;ga_hid=1419792073&amp;ga_fc=1&amp;ga_wpids=UA-52432983-1&amp;u_tz=-300&amp;u_his=1&amp;u_java=0&amp;u_h=1024&amp;u_w=768&amp;u_ah=1024&amp;u_aw=748&amp;u_cd=32&amp;u_nplug=1&amp;u_nmime=34&amp;dff=open sans&amp;dfs=14&amp;adx=148&amp;ady=62&amp;biw=1024&amp;bih=704&amp;eid=317150304&amp;oid=3&amp;ref=https://m.facebook.com&amp;rx=0&amp;eae=0&amp;vis=1&amp;abl=CS&amp;ppjl=u&amp;fu=256&amp;ifi=1&amp;xpc=GFXZzfrZT6&amp;p=http://sdherald.com&amp;dtd=424
  </code></pre>
  
  <p>I have no idea what these are and where they came from.. Does anyone have any idea how to fix this? Please help me.</p>
  
  <p>The website URL is <a href="http://sdherald.com" rel="nofollow">http://sdherald.com</a>.</p>
  
  <p>Thank you.</p>