How to Test and Improve Your Site's Page Speed
Page speed affects both your search rankings and your user experience. A slow site loses visitors, conversions, and credibility. Here's how to measure your speed accurately and fix the most common problems.
Free tools for testing page speed
PageSpeed Insights (pagespeed.web.dev): Google's official tool. Shows both lab data (simulated) and field data (real users). Provides specific fix recommendations.
GTmetrix (gtmetrix.com): detailed waterfall charts showing exactly what loads and when.
WebPageTest (webpagetest.org): advanced testing with multiple locations and connection speeds.
Google Search Console: Core Web Vitals report shows real-user speed data across your entire site.
Understanding the key metrics
Focus on these three numbers:
LCP (Largest Contentful Paint): how fast your main content appears. Target: under 2.5 seconds.
INP (Interaction to Next Paint): how responsive your page is when clicked. Target: under 200ms.
CLS (Cumulative Layout Shift): whether content jumps around during loading. Target: under 0.1.
The most common speed problems (and fixes)
1. Oversized images: The #1 cause of slow pages for most small businesses. Fix: Compress images, use WebP format, serve responsive sizes with srcset, and lazy-load images below the fold.
2. Too many plugins/scripts: Each plugin adds JavaScript that slows your page. Fix: Audit your plugins, remove unused ones, defer non-critical scripts.
3. Slow hosting: Cheap shared hosting often has slow server response times. Fix: Move to a faster host or add a CDN layer like Cloudflare.
4. Render-blocking resources: CSS and JavaScript that delay page display. Fix: Inline critical CSS, defer non-critical CSS/JS, use async loading.
5. No caching: Every visitor downloads everything fresh. Fix: Enable browser caching headers, use a caching plugin (WordPress) or CDN.
Setting a speed budget
For small business websites, aim for: under 3 seconds total load time, under 2.5s LCP, page weight under 2MB, and fewer than 50 requests per page. These are achievable targets that put you ahead of most competitors.
Test your speed monthly. It's easy for sites to gradually slow down as content is added and plugins accumulate. Regular testing catches problems before they cost you customers.
- References & Further Reading
- Google Search Central
- W3C Web Standards
Google PageSpeed
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