I've been seeing similar, although not to frontpage pages, I believe. Most are for search.jsp, with the full request being a URL for some other site that has nothing to do with me. I've been wondering if they're hacker attacks or if someone has his DNS misconfigured.
You might want to check your server logs to see if you're getting unusually high numbers of requests for your site banner or some other graphic. For awhile, I had some pay-per-click fraud scammer in China downloading my site banner tens of thousands of times a day, along with seeming requests for URLs nowhere on my site. If so, there's some code you can put in .htaccess that will only allow graphics to be downloaded via URLs specifically on your site (this will also block any forum "hotlinkers" you might have).
I also see regular requests for files such as proxy.cgi, which I assume is from some script kiddie looking to play.
Adam Gaffin Executive Editor, NetworkWorld.com agaffin@nww.com / (508) 490-6433 / http://www.networkworld.com "I programmed my robotic dog to bite the guy who delivers the electronic mail." -- Kibo