How to figure out why my local host site takes so long to load?

Question

I noticed today and yesterday that running my site on local host is very slow. I highly doubt this is a code issue as when I put it up on my live site it went fast.

Answer 1

What Browser are you debugging with?

I had similar issues running my site in FireFox 3+ (Win7).

This was resolved by going into about:config if FireFox and setting network.dns.disableIPv6 to true.