Comment on WordPress SEO Plugin Options by Mark.
Each WP is different. In theory just using your theme should give top results.
However, things like Wavatars and like/share buttons (ie external files) etc the speed test results with my site are good but a few “F” ratings. I notice your site has only top ratings.
I have tried. fastest cache, w3 total cache, speed booster pack, autoptize and wp performance score booster plugins and have got incremental improvements with each one on.
Is there anything else you generally recommend or any other plugin?
Almost not matter what I do (via plugins) this comes up:
Leverage browser caching
Any additional ideas?