Page Speed – Tips for speeding up your site Part 3

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Smart Traffic SEO Tip #45 – Tips for Speeding Up your Website – Part 3

*Add an Expires or a Cache-Control Header*

*This makes the scripts, stylesheets and flash components in the page cacheable. By doing this, unnecessary HTTP requests will be avoided on the succeeding page views making web pages load faster.

*Web server uses the Expires header in the HTTP response to tell client on how long a component can be cached by adding cache expiration date on all components like jpg, gif, jpeg, swf, css and javascript. Below is an example of a far future Expires header that tells the browser that the components are cacheable until April 15, 2010.
Expires: Thu, 15 Apr 2010 20:00:00 GMT
If the server is apache, use ExpiresDefault in setting an expiration date as shown below example.
ExpiresDefault “access plus 10 years”