Website Speed Optimization Guide

Website speed affects user experience, SEO rankings, and conversions. This guide shows how to make your site load faster.

Why Speed Matters

• User Experience: 47% of users expect pages to load in under 2 seconds
• SEO: Google uses speed as ranking factor
• Conversions: 1-second delay = 7% decrease in conversions
• Mobile: Slow sites on mobile lose 53% of visitors

Test Your Current Speed

Speed Testing Tools:

• Google PageSpeed Insights: pagespeed.web.dev
• GTmetrix: gtmetrix.com
• Pingdom: tools.pingdom.com

Target Metrics:

• Page load time: Under 3 seconds
• Time to First Byte (TTFB): Under 600ms
• First Contentful Paint: Under 1.8 seconds
• PageSpeed score: 90+ for mobile and desktop

Enable Caching

What is Caching? Stores copies of files so they load faster on repeat visits.

For WordPress:

1. Install WP Rocket or W3 Total Cache plugin
2. Enable page caching
3. Enable browser caching
4. Configure properly (follow plugin wizard)

Server-Level Caching:

• OPcache (PHP caching) - enabled on Taiwan Web Hosting
• Redis or Memcached (object caching)
• Varnish (full-page caching)

Optimize Images

Images account for 50-90% of page weight.

Image Optimization Steps:

1. Compress images: Use TinyPNG or ShortPixel
2. Correct format: JPEG for photos, PNG for graphics, WebP for modern browsers
3. Proper sizing: Don't upload 4000px images for 400px display
4. Lazy loading: Load images only when visible

WordPress Plugins:

• Imagify or ShortPixel (automatic compression)
• EWWW Image Optimizer
• Smush

Enable GZIP Compression

Compresses HTML, CSS, JavaScript files by 70-90%.

Enable in .htaccess:

<IfModule mod_deflate.c>\nAddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript\n</IfModule>

Minify CSS, JavaScript, HTML

Removes unnecessary characters (spaces, comments) from code.

WordPress Plugins:

• Autoptimize (easy, beginner-friendly)
• WP Rocket (premium, comprehensive)
• Fast Velocity Minify

Use a CDN

Content Delivery Network: Serves files from servers closest to visitors worldwide.

Popular CDN Services:

• Cloudflare: Free plan available, easy setup
• BunnyCDN: Cheap, fast ($1/TB)
• StackPath: Enterprise solution

Database Optimization

For WordPress:

1. Install WP-Optimize plugin
2. Clean up post revisions
3. Remove spam comments
4. Delete unused plugins/themes
5. Optimize database tables

Reduce HTTP Requests

• Combine CSS files into one
• Combine JavaScript files
• Use CSS sprites for icons
• Remove unnecessary plugins
• Minimize external scripts (ads, analytics)

Choose Fast Hosting

Hosting quality affects speed significantly:

• Server Type: VPS/Cloud faster than shared
• Storage: SSD 10x faster than HDD
• Server Location: Close to target audience
• PHP Version: PHP 8+ significantly faster