https://agenziawebroma.com
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
88
GRADE
B
FIX
1
REVIEW
7
PASS
11
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
90
98
73
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
907 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.90 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 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.
907 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.91 s
Page Load Progression
375 ms
750 ms 1.1 s 1.5 s 1.9 s 2.2 s 2.6 s 3.0 sChecks
2211 PASS 7 REVIEW 1 FIX
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.5 MB transferred, 66 requestsREVIEW
Page Weight Budget
1.5 MB transferred, 66 requests
1.5 MB transferred, 66 requests
Info::
Page weighs 2.9 MB (1.5 MB transferred)
Info::
66 HTTP requests
Info::
Estimated 0.32 g CO2 per page load
1.5 MB transferred
66 requests
0.32 g CO2 per page load
Images 956.4 KiB 60%
JavaScript 282.8 KiB 18%
Fonts 176.0 KiB 11%
CSS 141.8 KiB 9%
HTML 22.8 KiB 1%
Other 897 B 0%
Other 551 B 0%
0 2.4 MB 4.9 MB
Approaching limit
BJS Bundles20 scripts, 70 KB unusedREVIEW
JS Bundles
20 scripts, 70 KB unused
20 scripts, 70 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=GT-5DD...: 70 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 70 KB
70 KB unused JavaScript
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.
Why this matters
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
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
CPage Weight InventoryAction66 resources · 1.5 MB · 70 KB savings availableREVIEW
Page Weight Inventory
Action66 resources · 1.5 MB · 70 KB savings available
66 resources · 1.5 MB · 70 KB savings available
Warning::
Page weight 1.5 MB exceeds 1 MB target by 557 KB
Got: 1.5 MB Expected: ≤ 1 MB
Info::
~70 KB of savings available
Info::
8 third-party resources (23% of weight)
Info::
1 resources over 200KB
66 resources · 1.5 MiB · 8 third-party 557.3 KiB over 1MB target
Image 61% · 957.3 KiB
JavaScript 18% · 282.8 KiB
Font 11% · 176.0 KiB
CSS 9% · 141.8 KiB
Document 1% · 22.8 KiB
Other 0% · 551 B
~70.3 KiB of savings available
Remove unused JavaScript: 70.3 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 66 resources | 1.5 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
AThird-Party Impact23% third-party, 0 ms blockingPASS
Third-Party Impact
23% third-party, 0 ms blocking
23% third-party, 0 ms blocking
Info::
Third-party code accounts for 23% of page weight (362.7 KiB of 1.5 MiB)
Info::
Third-party blocking time is low (0 ms)
77%
23%
First-party Third-party
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Image Optimization14 images, 0 KB saveablePASS
Image Optimization
14 images, 0 KB saveable
14 images, 0 KB saveable
Info::
All images are well-optimized
14 images 956 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+JS Execution Cost297ms total JS executionPASS
JS Execution Cost
297ms total JS execution
297ms total JS execution
Info::
https://agenziawebroma.com/: 121ms CPU time
Info::
https://agenziawebroma.com/wp-includes/js/jquery/j...: 63ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=GT-5DD...: 57ms CPU time
Info::
Unattributable: 55ms CPU time
Info::
Third-party scripts: 57ms (19% of total)
Main Thread Breakdown
Script Evaluation 36% Style & Layout 25% Other 22% Parse HTML & CSS 8% Script Parsing & Compilation 5% Rendering 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://agenziawebroma.com/ | 121ms | 3ms | 1ms | 1st |
| https://agenziawebroma.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 63ms | 48ms | 1ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=GT-5DDCCN9X | 57ms | 46ms | 10ms | 3rd |
| Unattributable | 55ms | 2ms | 0ms | 1st |
A+Font Loading3 fonts (176 KB)PASS
Font Loading
3 fonts (176 KB)
3 fonts (176 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
3
176 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
esDR31xSG-6AGleN2tWkkJU... woff2 swap
Size 11 KB
Load time 19 ms
Start 375 ms
Risk FOUT — text flashes from fallback to web font
KFOhCnGXkPOLlhx6jD8_b1Z... woff2 swap
Size 17 KB
Load time 31 ms
Start 376 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 148 KB
Load time 78 ms
Start 376 ms
Risk FOUT — text flashes from fallback to web font
- 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 ~74 KB and ~148 ms
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`ETag` present -- conditional GET supported
Network Waterfall66 requests over 647msINFO
Network Waterfall
66 requests over 647ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
19% of JavaScript execution is third-party
First-party Third-party 57ms · 166KB · €1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 57ms | 166 KB | 42% | €1/mo | Optional |
Google Tag Manager
Tag Manager
Execution 57ms
Transfer 166 KB
Unused 42%
Monthly Cost €1/mo
Image Optimization20 images, 524 KB total, 89 KB wastedINFO
Image Optimization
20 images, 524 KB total, 89 KB wasted
Image Optimization Audit
Total Images
20
Total Size
524 KB
Oversized
1
Wasted
89 KB
4 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.