Mod pagespeed library/API?

[Luci]

Hi,

I am investigating a different approach to optimizing website content - server-side (ie. pre-webserver) optimization.

Is there documented access to a mod_pagespeed library, API or service to use its different optimization filters as on-demand function calls?

For example, if my code dynamically produces images, or deals with user-uploaded images, I would like to be able to save or output a ready-optimized version of an image. Or minifying/combining JS/CSS (I know there are other tools for this), minifying HTML at the end of a buffered flush, etc. Can I access pagespeed functions as a post-processing layer in my application?

Thanks.

Luci

[Joshua Marantz]

Yes you can.  mod_pagespeed has an API: http://modpagespeed.com/psol/annotated.html.

The main drawback of pre-optimizing a site is that it's harder to do some of the things mod_pagespeed does:

• serve content optimized for the user-agent, e.g. webp for Chrome/Opera, higher compression ratio for phones
  
• inlining small resources into HTML
  
• combining

And of course you'll have to integrate the build step into your content generation flow.  What is the main reason you are thinking of trying this approach?

-Josh

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