Page Speed: Enable Keep-Alive More Recommendations

Page Speed
YSlow

Avoid bad requests
Avoid CSS @import
Avoid CSS expressions (deprecated)
Avoid document.write
Combine external CSS
Combine external JavaScript
Combine images using CSS sprites
Defer loading of JavaScript
Defer parsing of JavaScript
Enable gzip compression
Enable Keep-Alive
Inline small CSS
Inline small JavaScript
Leverage browser caching
Leverage proxy caching (deprecated)
Make landing page redirects cacheable
Minify CSS
Minify HTML
Minify JavaScript
Minimize cookie size (deprecated)
Minimize DNS lookups
Minimize redirects
Minimize request size
Optimize images
Optimize the order of styles and scripts
Parallelize downloads across hostnames
Prefer asynchronous resources
Put CSS in the document head
Remove query strings from static resources
Remove unused CSS
Serve resources from a consistent URL
Serve scaled images
Serve static content from a cookieless domain
Specify a cache validator
Specify a character set early
Specify a Vary: Accept-Encoding header
Specify image dimensions
Use efficient CSS selectors

Rule Summary

Type: Server
Priority: High
Difficulty: Easy
Average Score: 94%

Overview

Enabling HTTP Keep-Alive or HTTP persistent connections allow the same TCP connection to send and receive multiple HTTP requests, thus reducing the latency for subsequent requests.

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