Best Practices for Speeding Up Your Website

Make fewer HTTP Requests

Avoid Redirects

Minify HTML

Prioritize Visible Content

Make AJAX Cacheable

Reduce the Number of DOM Elements

Minimize the Number of iframes

Reduce DNS Lookups

Avoid 404s

Reduce Cookie Size

Use Cookie-Free Domains for Components

Reduce Server Response Time

Eliminate Render-Blocking CSS in Above the Fold Content

Avoid CSS Expressions Choose over @import

Make CSS External

Minify CSS

Avoid Filters

Use a Content Delivery Network (CON)

Add Expires or Cache-Control Header

Enable Compression

Configure ETags

Eliminate render-blocking JavaScript in above the fold content

Make JavaScript External

Minify JavaScript

Remove Duplicate Scripts

Minimize DOM Access

Develop Smart Event Handlers

Optimize Images

Optimize CSS Sprites

Do not Scale Images in HTML

Serve Images in Next-Gen Formats

Make favicon.ico Small and Cacheable

Keep Components Under 25 KB

Pack Components into a Multipart Document