: First, you'll have to figure out exactly where your site is slow: is it in database processing? Is it in the front-end servers? Is it in the wordpress processes? Bandwidth? Maybe your host

@Si4351233

First, you'll have to figure out exactly where your site is slow: is it in database processing? Is it in the front-end servers? Is it in the wordpress processes? Bandwidth? Maybe your host can help you figure out where your bottleneck is. (They probably want to sell exactly the right amount of CPU/Memory/Database/Bandwidth, to give you the most bang for your buck and bring in the most bucks. :)

Make static what you can.

Use a CDN to serve JQuery or similar tools. Google and Microsoft host JQuery for you! Woot.

Use a CDN for your most-popular images. (Akamai, etc.) Use CSS image sprites to collapse multiple images into a single image, to reduce the number of connection requests necessary to render a page.

Implement some mechanism to cache rendered HTML pages, one for unauthenticated viewing, then per-person caches if individual viewers make multiple hits for the same content that must be re-generated. Implement some 'fragment caching' mechanism to cache smaller pieces, too, so that generating entire new pages to retire or populate the cache can go a little faster.

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