Speed August 22, 2025 • 7 min read

Website Performance Checklist: 10 Improvements That Speed Up Your Site

Site speed directly impacts conversions and SEO. Follow this practical checklist to dramatically improve your website's performance and user experience.

W
Websetly Team
Performance Specialists

Why Speed Matters

The shocking impact of slow loading times

53%
of mobile users abandon sites that take longer than 3 seconds to load
7%
decrease in conversions for every 1-second delay
2.5x
higher bounce rate for sites loading in 5+ seconds

In today's fast-paced digital world, website speed isn't just a nice-to-have—it's a business necessity. Google considers page speed as a ranking factor, and users expect instant results. A slow website doesn't just frustrate visitors; it costs you conversions, search rankings, and revenue.

Before You Start: Test Your Current Speed

Use tools like Google PageSpeed Insights, GTmetrix, or Pingdom to establish a baseline before implementing these improvements.

The Complete Performance Checklist

1

Optimize and Compress Images

Images often account for 60-70% of a webpage's total size. Proper optimization can reduce load times dramatically.

Action Steps:

Format Selection:
  • • Use WebP for photos (90% smaller)
  • • Use SVG for logos and icons
  • • Use PNG only for images with transparency
  • • Avoid TIFF and uncompressed formats
Compression Tools:
  • • TinyPNG for batch compression
  • • ImageOptim for Mac users
  • • Squoosh.app for web-based optimization
  • • WordPress plugins like Smush

💡 Pro Tip: Aim for images under 100KB for web use. Use different sizes for different screen resolutions.

2

Enable Browser Caching

Browser caching stores website files locally on users' devices, dramatically reducing load times for repeat visitors.

Implementation Methods:

For Apache Servers (.htaccess):
<IfModule mod_expires.c>
  ExpiresActive on
  ExpiresByType text/css "access plus 1 year"
  ExpiresByType application/javascript "access plus 1 year"
  ExpiresByType image/png "access plus 1 year"
</IfModule>
For WordPress:

Use caching plugins like W3 Total Cache, WP Rocket, or LiteSpeed Cache for easy setup.

3

Minify CSS, JavaScript, and HTML

Minification removes unnecessary characters (spaces, comments, line breaks) from code files, reducing their size by 20-30%.

Minification Tools:

  • UglifyJS for JavaScript
  • CleanCSS for CSS files
  • HTMLMinifier for HTML
  • Minify.org (online tool)

Automatic Solutions:

  • Cloudflare Auto Minify
  • WordPress minification plugins
  • Build tools (Webpack, Gulp)
4

Use a Content Delivery Network (CDN)

A CDN distributes your website's static files across multiple servers worldwide, reducing the physical distance between users and your content.

Popular CDN Providers:

Cloudflare Free tier available
AWS CloudFront Pay-as-you-go
MaxCDN From $9/month

Benefits:

  • 50-60% faster load times globally
  • Reduced server load
  • Better uptime and reliability
  • DDoS protection included
5

Optimize Your Hosting Environment

Your hosting provider and server configuration play a crucial role in website performance. Cheap shared hosting often bottlenecks speed.

Server Specifications:

  • SSD storage (3x faster than HDD)
  • PHP 8+ (30% faster than PHP 7)
  • HTTP/2 enabled
  • Gzip compression enabled

Recommended Hosts:

SiteGround
Great WordPress optimization
Kinsta
Premium managed WordPress
DigitalOcean
Flexible VPS solutions

Quick Wins: Items 6-10

6

Implement Lazy Loading

Load images only when they're about to enter the viewport

7

Reduce HTTP Requests

Combine CSS/JS files and use CSS sprites for icons

8

Enable Gzip Compression

Reduce file sizes by 70% with server-side compression

9

Remove Unused Plugins/Code

Audit and remove unnecessary plugins and code bloat

10

Optimize Database

Clean up database tables and optimize queries

Measuring Your Success

Key Performance Metrics to Track

Speed Metrics:

  • First Contentful Paint (under 1.8s)
  • Largest Contentful Paint (under 2.5s)
  • Time to Interactive (under 3.8s)

Business Metrics:

  • Bounce rate reduction
  • Conversion rate improvement
  • Search ranking improvements

Maintenance: Keep It Fast

Monthly Performance Maintenance

Run speed tests monthly - Use Google PageSpeed Insights and GTmetrix to monitor performance
Update plugins and themes - Keep all software current for security and performance
Clear cache regularly - Fresh cache ensures users get the latest optimizations
Optimize new content - Compress images and minify code for all new additions

Need Help Optimizing Your Website?

These optimizations can be technical and time-consuming. Let our performance experts handle the heavy lifting while you focus on growing your business.

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