Performance
· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
5.48 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.51 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
229 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.43 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
9.66 s
Page Load Progression
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.6 MB transferred, 61 requestsREVIEW
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
CJS Execution CostAction1153ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://agenziawebroma.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 292ms | 241ms | 9ms | 1st |
| Unattributable | 271ms | 6ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=GT-5DDCCN9X | 257ms | 218ms | 35ms | 3rd |
| https://agenziawebroma.com/ | 191ms | 9ms | 4ms | 1st |
| https://agenziawebroma.com/wp-content/themes/blocksy/static/bundle/907.1ddadcf80aca9cb11200.js | 141ms | 10ms | 1ms | 1st |
BJS Bundles20 scripts, 70 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=GT-5DDCCN9X | 166 KB | 70 KB (42%) | ✓ | 3rd |
| https://agenziawebroma.com/wp-includes/js/dist/hooks.min.js?ver=f0f188028580e8dc1255 | 2 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-includes/js/dist/i18n.min.js?ver=1dfe7db3940c23ea9216 | 3 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-content/plugins/elementor/assets/js/webpack.runtime.min.js?ver=4.2.3 | 3 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 29 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-includes/js/jquery/ui/core.min.js?ver=1.14.2 | 6 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.2.3 | 10 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-includes/js/hoverIntent.min.js?ver=1.10.2 | 1 KB | — | ✓ | 1st |
| https://agenziawebroma.com/wp-content/plugins/megamenu/js/maxmegamenu.js?ver=3.10.6 | 9 KB | — | ✗ | 1st |
| https://agenziawebroma.com/wp-content/themes/blocksy/static/bundle/main.js?ver=2.1.52 | 9 KB | — | ✓ | 1st |
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction61 resources · 1.6 MB · 70 KB savings availableREVIEW
~69.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 61 resources | 1.6 MiB | ||||||
BJavaScript Blocking1 JS blocking issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
AThird-Party Impact37% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization7 images, 0 KB saveablePASS
A+Font Loading5 fonts (407 KB)PASS
Web fonts
5
407 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
Fixing the unchecked items could save ~189 KB and ~378 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+Compression AlgorithmMain response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall61 requests over 1352msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 257ms | 166 KB | 42% | €3/mo | Costly |
These scripts may cost more than they're worth
- Google Tag Manager adds 257ms and costs ~€3/month
Google Tag Manager takes 257ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Image Optimization20 images, 524 KB total, 89 KB wastedINFO
Image Optimization Audit
Total Images
20
Total Size
524 KB
Oversized
1
Wasted
89 KB