Have you been to:

https://developers.google.com/pagespeed/

If you have, you might notice that some of your changes take, and some don’t.  I almost went insane until I realized that this page was caching some results, regardless of refreshing or reloading the page.

Solution?  Download firebug plugin for Firefox, and then visit this page to download page speed plugin.

https://code.google.com/speed/page-speed/download.html

After installing, you must restart Firefox to enable the plugin.  Once activated, you will notice a Firbug icon on the tool bar, mine happens to be to the right of the home button to the right of my search  bar.

Then, when you make changes to your site, RELOAD your page in your browser and then REFRESH ANALYSIS for the updated results.

Happy optimizing 😉

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