Speed is a revenue metric, not only a technical metric
When a mobile page loads slowly, users bounce before reading your offer. Search engines observe that behavior at scale. Speed optimization is therefore a joint SEO and conversion initiative.
The three metrics to monitor
- LCP (Largest Contentful Paint): How quickly the main content appears.
- INP (Interaction to Next Paint): How responsive the page feels after user input.
- CLS (Cumulative Layout Shift): How stable the layout remains while loading.
High-impact fixes for SMB sites
- Compress and resize hero images for mobile first.
- Use lazy loading for non-critical images below the fold.
- Limit heavy third-party scripts and tracking tags.
- Reserve space for media to avoid layout shifts.
- Reduce JavaScript on core landing pages.
Execution model
Start with top landing pages that drive revenue: homepage, top services, pricing, and contact. Improve one page type at a time and re-measure after each release. This keeps the team focused and avoids random optimization work.
How to measure success
Track both performance metrics and business outcomes: form submissions, call clicks, and checkout starts. Speed work is successful when user outcomes improve—not only lighthouse scores.