Everybody talks about Lighthouse scores, but very few sites actually achieve a high one.
Across the sites we have audited at Axion Deep Digital, the average score is 44 out of 100. These are not abandoned projects. These are active businesses investing in growth.
Performance is not just a technical metric. It directly impacts both ranking and conversion. A slow site ranks lower and loses users before they even engage.
We rebuilt our own site with a clear goal: reach 98+ across all Lighthouse categories on mobile, under realistic conditions.
Here is what that required.
Start With the Foundation
Your framework determines what is possible.
We use static generation so pages are pre rendered and delivered instantly. If your stack introduces unnecessary overhead, optimization has limits.
Images Are the Largest Bottleneck
On most sites, images account for the majority of page weight.
We focus on:
- Modern formats like WebP and AVIF
- Proper sizing based on actual display
- Lazy loading below the fold
- Explicit dimensions to prevent layout shift
Fonts Add Hidden Latency
Fonts often introduce multiple network requests before text appears.
We:
- Self host fonts
- Subset unused characters
- Use
font-display: swap
- Preload primary fonts
This significantly improves perceived performance.
JavaScript Should Be Minimal
JavaScript must be downloaded, parsed, and executed.
We:
- Remove unused dependencies
- Split code by route and component
- Defer non critical scripts
The goal is to reduce main thread work and improve responsiveness.
CSS Controls First Render
Instead of blocking rendering with large stylesheets:
- Inline critical CSS
- Load remaining styles asynchronously
- Remove unused rules
Core Web Vitals
These are the metrics that matter most:
- LCP measures how fast the main content appears
- CLS measures layout stability
- INP measures responsiveness
Optimizing the system improves all three.
Server Configuration Still Matters
Even a fast frontend can be slowed down by poor delivery.
- Enable Brotli compression
- Configure caching correctly
- Use a CDN for global delivery
- Add security headers
Accessibility Improves Everything
Accessibility overlaps with SEO and usability.
Common issues include:
- Missing alt text
- Poor contrast
- Unlabeled inputs
- Incorrect heading structure
Why This Matters
Performance affects ranking. It also affects conversion.
Testing on a fast device is misleading. Real users are on slower networks and older hardware.
The Fix
We built DeepAudit AI to evaluate sites the right way.
It renders your site in a real browser and audits what actually loads.
- No signup
- Takes about 60 seconds
https://axiondeepdigital.com/free-seo-audit
