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Making a Fast Website: on scirra.com: http://www.scirra.com/blog/74/making-a-fast-website
QUOTE:
'It’s always been important to make your website fast. Not only is it obvious visitors are going to prefer it but it’s now well-known that Google uses loading speed as a ranking metric. The initial page load of your website is perhaps the most important. The longer it takes to load the more visitors are going to press back and find an alternative. A slow website is something that could potentially frustrate visitors so it’s important to try and remove it from the equation.
Jakob Nielsen is an authority on usability and has studied response times extensively. He notes that response times of:
•Up to 100 milliseconds is perceived as instantaneous response
•Up to 1 second will be noticed by the user but their thought flow will remain uninterrupted.
•Over 10 seconds is also mentioned but this shouldn’t be applicable to normal websites which is the focus of this blog. If your site takes longer than 10 seconds to load something is probably critically wrong!'
Then look at Useful Free Tools chapter too ..
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- yes, it's not for speed, but to better target the top spots in search engines, sorry ..
