I need help regarding robots.txt file.

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  W.E. Jonk: Since we discussed it already I know you are referring to Google's webcache. I did a site: command and there a number of pages that don't have a webcache. However the home page is indexed. Why Google doesn't show the webcache I don't know.
  
  Since you did mention "blog". This one is in the webcache: ;http://webcache.googleusercontent.com/search?q=cache:68Hg2QMfOykJ:www.playquest.com.au/blog/+&cd=7&hl=en&ct=clnk
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  Kenneth Villegas: I actually did not check the blog page if it has a cache date or not. I only checked the homepage since the homepage is the most important page.
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  W.E. Jonk: People much smarter then me are going to look at this question this Thursday during the HOA. So let me cross-link so that they can look at the whole question at once:
  
  https://plus.google.com/u/0/116922081017396853172/posts/8NNVNP3KqVq
  https://plus.google.com/u/0/116922081017396853172/posts/h5EtigyHxht
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  Richard Hearne: Here's the cache of your homepage I can see:
  
  http://webcache.googleusercontent.com/search?q=cache:YlFPpa_-H3sJ:www.playquest.com.au/+&cd=1&hl=en&ct=clnk
  
  If it's a new site you have to wait a little to see cache. Note that the cached version is not the version Google will always use for search. It's simply a copy of your page stored for users benefit.
  
  On an unrelated note, I would give serious consideration to all the files you're calling on your pages. Consider something like W3 Total Cache to speed things up and combine all those JS/CSS files.