Fuelitize: Page load time 3.7s → 1.2s across 12 sites
How Fuelitize used TheWebBooster to ship performance wins across 12 local business sites in 3 days.
The story
Fuelitize reduced average page load time from 3.7s to 1.2s across 12 sites in just 3 days, cut page weight by 71%, and freed developer time for higher value work.
The problem
Fuelitize manages dozens of local business websites including dentists, cafes, and home services. Each site used a mix of page builders, third party scripts, and large hero images. The result was inconsistent Core Web Vitals, poor mobile Lighthouse scores, and time consuming manual fixes. Clients were reporting fewer phone calls and appointment bookings, and Fuelitize's dev team was repeatedly redoing similar optimization tasks for different clients.
Why speed matters for agencies and local businesses
- •Faster pages rank better in local search and appear higher on mobile.
- •Quicker page load and low interaction delays reduce bounce rate, visitors convert to appointments.
- •Faster loading reduces wasted ad spend by improving landing page ROI.
- •For agencies, standardizing results saves dozens of developer hours per site.
How we solved it
TheWebBooster automatically optimized everything. Critical CSS extracted and inlined per route. Images converted to modern formats with responsive sizing. Third party scripts deferred and loaded async. CDN caching applied with smart invalidation. All optimizations happened instantly after adding the script, no manual configuration needed.
How we did it
Day 1: Added TheWebBooster script to staging, ran initial benchmark. Day 2: Tested on 3 pilot sites, validated results. Day 3: Rolled out to all 12 sites. Total setup time per site: under 5 minutes.
The results that matter
| Metric | Before | After | Delta |
|---|---|---|---|
| Page load time (avg) | 3.7 s | 1.2 s | -68% |
| Page weight (avg) | 2.8 MB | 820 KB | -71% |
| Network requests (avg) | 82 | 28 | -66% |
| Page interactivity (avg) | 420 ms | 90 ms | -79% |
| Performance score (avg) | 42 | 89 | +47% |
| Monthly conversions (avg) | 24 | 27 | +12.5% |
| Dev time saved per site | 8 hours | - | saved ∞% |
Real world results
- •Standardizing performance optimizations across client sites both improves outcomes and reduces agency workload.
- •TheWebBooster is intentionally built for agency pipelines with automated rules, predictable gains, and measurable business impact.
- •Average monthly conversions across clients increased by 12.5%, driven largely by improved mobile LCP and lower bounce.
- •Fuelitize reduced repetitive optimization work by approximately 8 dev hours per site after automating TheWebBooster into their build and staging flow.
What they had to say
"TheWebBooster let us stop babysitting performance fixes. We roll it into staging, run the QA checklist, and ship faster. Our clients see results in days, not weeks."
The technical details
What you can learn
- •Standardizing performance optimizations across client sites both improves outcomes and reduces agency workload.
- •TheWebBooster is intentionally built for agency pipelines with automated rules, predictable gains, and measurable business impact.
- •Average monthly conversions across clients increased by 12.5%, driven largely by improved mobile LCP and lower bounce.
- •Fuelitize reduced repetitive optimization work by approximately 8 dev hours per site after automating TheWebBooster into their build and staging flow.
Questions you might have
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