Check your meta tags?
example:
http://www.host.com
or
http://www.host.com/index.html
.
URL
Spider Robots
GoogleBot
Fast-WebCrawler
Mercator
Scooter
IA Archiver
(optional)
User Agent * (optional)
* This can be the Search Engine spiders User Agent and override the Spider Robot from the select box. Example: Googlebot/2.1 (+http://www.googlebot.com/bot.html)