The art of tuning a website to deliver it's content quickly and efficiently to the user over a potentially low bandwidth connection.

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19
votes
3answers
1k views

If a page takes too long to load, after how long will a user give up and re-load or go elsewhere?

If a page takes too long to load, after how long – generally – will a user give up and re-load or go elsewhere? What studies have been done that measured page load time and user ...
18
votes
6answers
637 views

How do you load test your application?

What is the most effective way to load to load test your app? The main point is to determine how many users you could support at a single time with the application still running at a reasonable speed. ...
5
votes
1answer
111 views

How much attention should I pay to page-load metrics?

My site scores a D in YSlow. How important is it that I get it up to say a B or an A? I feel the page already loads quickly. I tested it at home on a modest 512k connection and it loaded in an ...
25
votes
6answers
22k views

What is the Google Chrome equivalent to Firebug?

I'm looking for a tool that can: inspect HTML elements manage/debug JavaScript profile performance modify elements in real-time
15
votes
7answers
453 views

What are the best ways to measure end user web site performance?

I know of a couple tools to measure end user web site performance and I'm wondering what else is out there. The two major ones I know of are yslow and Google's page speed.
14
votes
5answers
2k views

What's the best way to load Javascript into a page to optimize performance?

Is there a way to load my JavaScript into a page that will make it load faster?