To increase the loading speed of your WordPress blog, you can check out W3 Total Cache, WP Smush.it and Use Google Libraries, as mentioned before.
All those 3 plugins are available for you to optimize the blog itself, and if your visitors are from all over the world, you’d better also use a CDN system, which will cache your blog pages in different data centers and show your visitors the caches saved in the nearest data centers to them.
Since servers and bandwidth are not free, most of the CDN services are not free, but luckily, CloudFlare has broken through the cost bottleneck and offers a free CDN service.
With 14 data centers in the world, including Tokyo, Singapore, Hong Kong and more, CloudFlare can definitely increase the page speed for the visitors far away from your blog server.
To use CloudFlare, you just need to create an account, add your website domain and change your name servers, when the DNS process is completed, you blog contents will be distributed by CloudFlare and run faster, what is more, you can also save some CPU, RAM and bandwidth of your own server.
For a WordPress blog, you can also install the CloudFlare plugin, which is available for you to track the commenter IPs, to block spammers and to optimize your database.
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