HTTP Archive also provides a graph of your website’s performance, including response time, and top requests. They also have an awesome filmstrip that takes a screenshot each second as it loads the page so you can see how your page loads frame by frame. You can see an example here.
- Free; no sign up required.
- Shows check website loading times and performance with interesting data.
- Aggregates data from different websites to show the state of Internet.
- Great way to check what bugging your website.
- Similar Tools: Alertfox, WebsiteSpeedTest, GTMetrix, and Slowcop.
Check out HTTP Archive @ www.httparchive.org