[tpearl5]

Originally Posted by imported_silkroad

You think Google Webmaster Performance is measure from their Search Engine referrals and not directly by GoogleBot?

I am not sure I would agree with that, but I don't yet have any factual basis to offer any counter suggestions. However, I don't think Google measures performance based on limitations of user clients. That would not be accurate at all.

Well, it specifically states that the data comes from google toolbar...

Page load time is the total time from the moment the user clicks on a link to your page until the time the entire page is loaded and displayed in a browser. It is collected directly from users who have installed the Google Toolbar and have enabled the optional PageRank feature.

(read further down in 'if data is missing or seems inaccurate)

I see what you mean, but after I've thought about it, it is a good way to measure, on average, what your users are experiencing. If more of your users are having a hard time loading your site then perhaps the servers are too far away from the users or a full CDN solution should be considered. For example, I'm sure if I had an influx of users from India that average load time would go up since my main servers are located in the US.

Likewise, if a low number of people using the google toolbar go to your site, and those people happen to have broadband connections, then you're not really getting accurate data - especially if your audience doesn't like toolbars. Yeh, I'm sure the tool could be more intuitive. I guess that's why they put these lines in there:

Data may also not be available for your site if not enough users (with Google Toolbar and the PageRank feature turned on) have visited your site's pages during the time period displayed.... If your site is small, or doesn't attract a lot of traffic, the results may be slightly skewed.