First of all, there’are many, many ways you can do to speed up your website, but “optimization” is just thing harder to evaluate, for the easy example: you can make your website faster, but you may loose many visual effects to visitors or some website functions, the small website like a personal web-blog will be optimized easily but it’s NOT for the bigger website with many images, css file, javascript… so that, to suit your needs, you must keep it balanced, some-tricks you can follow, but the others, you shouldn’t (sometimes it’s because the limitation of your host like: your host doesn’t support nginx, xcache.., hard to add alias subdomain or doesn’t support mod_rewrite…).

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