Modpagespeed module doesn not work on 1st page visit

[Andrius Solopovas]

Hi, I am running on centos 6 x64. When I open my website 1st time it does not compress the images nor optimizes content, it does all of that upon refresh. Why is that? 

[Joshua Marantz]

It's designed to work that way to avoid impacting the latency for the first viewer.  The first time a page is shown, mod_pagespeed starts optimizing images and other resources in the background and storing the results in the server-side cache.  Once that's done, subsequent refreshes will show the optimized content.

You can change this behavior to a certain extent by setting the rewrite deadline:

ModPagespeedRewriteDeadlinePerFlushMs deadline_value_in_milliseconds

See https://developers.google.com/speed/pagespeed/module/system for details.

-Josh

On Fri, Nov 28, 2014 at 1:07 PM, Andrius Solopovas <andrius....@gmail.com> wrote:

Hi, I am running on centos 6 x64. When I open my website 1st time it does not compress the images nor optimizes content, it does all of that upon refresh. Why is that? 

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