Ask HN: How do you measure your site's speed?

Have you tried YSlow firefox plugin? It will help you measuring the loading time.<p><a href="http://developer.yahoo.com/yslow/" rel="nofollow">http://developer.yahoo.com/yslow/</a><p>Following link might be useful in improving the loading time of your pages <a href="http://developer.yahoo.com/performance/rules.html" rel="nofollow">http://developer.yahoo.com/performance/rules.html</a>

you could also try <a href="http://www.webpagetest.org" rel="nofollow">http://www.webpagetest.org</a> , it shows you the bottlenecks as well.