Firefox add-on that tracks webpage load time including DNS retrieve time?
Solution 1:
Firebug's "Net" panel does this. It gives you timing info for the following:
- DNS lookup
- Connecting
- Queueing
- Waiting for response
- Receiving data
- When the DOMContentLoaded event fires
- When the load event fires
Solution 2:
Another one worth checking out is Yahoo's YSlow which is an extension that integrates with Firebug