There are several things to look at when your website has bad latency.  Slow loading pages can be frustrating for viewers and can be loss of business for you.  There are several things that cause latency issues on websites.  This article will review examples from popular websites and examine the tools they use to help ensure that a website loads quickly and efficiently for viewers.

  1. Do Not Allow Hotlinking
  2. Enable Caching
  3. Code & JavaScript Compression
  4. Poorly Optimized Databases
  5. Location of Server
  6. CSS Files Over 75KB – CSS files are always recommended between 15-30kb
  7. Image Optimization

See : http://goo.gl/oyeFp