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https://ladysilvia.eu

Performance

· 25 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
8
PASS
14
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
0
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

7.66 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

0 ms

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.

7.66 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.

0 ms

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
25
14 PASS 8 REVIEW 1 FIX
D
JS Execution Cost
Action
2601ms total JS execution
FIX
2601ms total JS execution
Warning::
https://ladysilvia.eu/: 2199ms CPU time
Info::
https://ladysilvia.eu/static/js/app.js?v=4.54: 233ms CPU time
Info::
Unattributable: 169ms CPU time

Main Thread Breakdown

Style & Layout 49% Other 40% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://ladysilvia.eu/2199ms14ms2ms1st
https://ladysilvia.eu/static/js/app.js?v=4.54233ms30ms2ms1st
Unattributable169ms5ms0ms1st
C
Page Weight Budget
Action
1.6 MB transferred, 24 requests
REVIEW
1.6 MB transferred, 24 requests
Info::
Page weighs 3.5 MB (1.6 MB transferred)
Info::
Fonts are 1.0 MB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 1.0 MB
Info::
24 HTTP requests
Info::
Estimated 0.34 g CO2 per page load
1.6 MB / 2.4 MB budget
1.6 MB transferred
24 requests
0.34 g CO2 per page load
Fonts 1.0 MiB 61%
Images 418.7 KiB 25%
CSS 95.3 KiB 6%
Other 67.6 KiB 4%
Other 51.2 KiB 3%
HTML 13.9 KiB 1%
JavaScript 5.7 KiB 0%
0 2.4 MB 4.9 MB
Approaching limit

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

B
Image Optimization
9 images, 0 KB saveable
REVIEW
9 images, 0 KB saveable
Warning::
https://ladysilvia.eu/static/pic/88x31.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
9 images 419 KB
0 oversized -0 KB
8 legacy format
1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
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.
B
Compression Algorithm
Main response uses gzip; brotli would be ~20% smaller
REVIEW
Main response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
B
Main HTML Cache-Control
Main HTML max-age=600 (~10min)
REVIEW
Main HTML max-age=600 (~10min)
Info::
Main HTML cached for 10 minutes -- mild staleness risk
Got: max-age=600
B
Server-Timing Observability
No Server-Timing header found
REVIEW
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.
C
Page Weight Inventory
Action
24 resources · 1.6 MB · 0 KB savings available
REVIEW
24 resources · 1.6 MB · 0 KB savings available
Warning::
Page weight 1.6 MB exceeds 1 MB target by 654 KB
Got: 1.6 MB Expected: ≤ 1 MB
Info::
2 third-party resources (7% of weight)
Info::
1 resources over 200KB
24 resources · 1.6 MiB · 2 third-party 653.7 KiB over 1MB target
Font 61% · 1.0 MiB
Image 25% · 418.7 KiB
CSS 6% · 95.3 KiB
Document 5% · 81.5 KiB
Other 3% · 51.2 KiB
JavaScript 0% · 5.7 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
7% third-party, 0 ms blocking
PASS
7% third-party, 0 ms blocking
Info::
Third-party code accounts for 7% of page weight (111.9 KiB of 1.6 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
First-party Third-party
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
2 fonts (1025 KB)
PASS
2 fonts (1025 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

1025 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 7.7 shttps://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2FKGroteskNeue.woff2 https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2 — 111.9 KiB — 129 ms — font-display: swaphttps://ladysilvia.eu/static/css/ito-fonts/fonts/ito-icon-to5-essential.ttf?pnuta9ito-icon-to5-essential.ttf https://ladysilvia.eu/static/css/ito-fonts/fonts/ito-icon-to5-essential.ttf?pnuta9 — 913.3 KiB — 367 ms — font-display: swap
FKGroteskNeue.woff2 woff2 swap
Size 112 KB
Load time 129 ms
Start 487 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
ito-icon-to5-essential.ttf ttf swap
Size 913 KB
Load time 367 ms
Start 487 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • 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 ~787 KB and ~1574 ms

A+
JS Bundles
2 scripts, 0 KB unused
PASS
2 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://ladysilvia.eu/static/js/app.js?v=4.546 KB—✓1st
https://ladysilvia.eu/static/js/app.js?%3Cbr%20/%3E%3Cb%3EWarning%3C/b%3E:%20%20Undefined%20variable%20$versionTimeJS%20in%20%3Cb%3E/var/www/html/static/tpl/footer.php%3C/b%3E%20on%20line%20%3Cb%3E475%3C/b%3E%3Cbr%20/%3E0 KB—✓1st
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
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::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
2 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
A
CSS Performance Depth
1 CSS depth issue(s) detected
PASS
1 CSS depth issue(s) detected
Warning::
8 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
A
HTTP Caching
max-age=600 (10 minutes)
PASS
max-age=600 (10 minutes)
Info::
Cache-Control header is set
Got: max-age=600
Info::
Effective TTL: 10 minutes (max-age=600)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=600

DirectiveValueMeaning
max-age600Cache for 10 minutes
Effective TTL: 600 seconds
Network Waterfall
24 requests over 1480ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 7.7 shttps://ladysilvia.eu// https://ladysilvia.eu/ — 200 — 13.9 KiB — 241 ms — http/1.1https://ladysilvia.eu/static/css/ito-fonts/style.css?v=4.54/static/css/ito-fonts/style.css?v=4... https://ladysilvia.eu/static/css/ito-fonts/style.css?v=4.54 — 200 — 41.5 KiB — 160 ms — http/1.1https://ladysilvia.eu/static/css/style.css?v=4.54/static/css/style.css?v=4.54 https://ladysilvia.eu/static/css/style.css?v=4.54 — 200 — 7.0 KiB — 95 ms — http/1.1https://ladysilvia.eu/static/css/nav.css?v=4.54/static/css/nav.css?v=4.54 https://ladysilvia.eu/static/css/nav.css?v=4.54 — 200 — 3.3 KiB — 105 ms — http/1.1https://ladysilvia.eu/static/css/home.css?v=4.54/static/css/home.css?v=4.54 https://ladysilvia.eu/static/css/home.css?v=4.54 — 200 — 3.3 KiB — 124 ms — http/1.1https://ladysilvia.eu/static/css/color.css?v=4.54/static/css/color.css?v=4.54 https://ladysilvia.eu/static/css/color.css?v=4.54 — 200 — 33.4 KiB — 175 ms — http/1.1https://ladysilvia.eu/static/css/channel.css?v=4.54/static/css/channel.css?v=4.54 https://ladysilvia.eu/static/css/channel.css?v=4.54 — 200 — 2.1 KiB — 135 ms — http/1.1https://ladysilvia.eu/static/css/footer.css?v=4.54/static/css/footer.css?v=4.54 https://ladysilvia.eu/static/css/footer.css?v=4.54 — 200 — 2.8 KiB — 138 ms — http/1.1https://ladysilvia.eu/static/css/notifications.css?v=4.54/static/css/notifications.css?v=4.5... https://ladysilvia.eu/static/css/notifications.css?v=4.54 — 200 — 1.8 KiB — 136 ms — http/1.1https://ladysilvia.eu/pic/social/f443d7d1b0551541a32536f2b37368ad994f5336d68d83e1d3d18afe92e49826/avatar/f443d7d1b0551541a32536f2b37368ad994f5336d68d83e1d3d18afe92e49826blob/pic/social/f443d7d1b0551541a32536f... https://ladysilvia.eu/pic/social/f443d7d1b0551541a32536f2b37368ad994f5336d68d83e1d3d18afe92e49826/avatar/f443d7d1b0551541a32536f2b37368ad994f5336d68d83e1d3d18afe92e49826blob — 200 — 79.2 KiB — 98 ms — http/1.1https://ladysilvia.eu/articleImage/500/35513.jpg/articleImage/500/35513.jpg https://ladysilvia.eu/articleImage/500/35513.jpg — 200 — 67.8 KiB — 100 ms — http/1.1https://ladysilvia.eu/static/pic/88x31.png/static/pic/88x31.png https://ladysilvia.eu/static/pic/88x31.png — 200 — 2.5 KiB — 38 ms — http/1.1https://ladysilvia.eu/static/js/app.js?v=4.54/static/js/app.js?v=4.54 https://ladysilvia.eu/static/js/app.js?v=4.54 — 200 — 5.7 KiB — 35 ms — http/1.1https://ladysilvia.eu/static/js/app.js?%3Cbr%20/%3E%3Cb%3EWarning%3C/b%3E:%20%20Undefined%20variable%20$versionTimeJS%20in%20%3Cb%3E/var/www/html/static/tpl/footer.php%3C/b%3E%20on%20line%20%3Cb%3E475%3C/b%3E%3Cbr%20/%3E/static/js/app.js?%3Cbr%20/%3E%3Cb%... https://ladysilvia.eu/static/js/app.js?%3Cbr%20/%3E%3Cb%3EWarning%3C/b%3E:%20%20Undefined%20variable%20$versionTimeJS%20in%20%3Cb%3E/var/www/html/static/tpl/footer.php%3C/b%3E%20on%20line%20%3Cb%3E475%3C/b%3E%3Cbr%20/%3E — -1 — 0 B — 0 ms — data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24…www.w3.org/2000/svg' width='16' hei... data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24… — 200 — 0 B — 0 ms — datahttps://ladysilvia.eu/to/lang/it.sc.json/to/lang/it.sc.json https://ladysilvia.eu/to/lang/it.sc.json — 200 — 51.2 KiB — 48 ms — http/1.1https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2r2cdn.perplexity.ai/fonts/FKGrotesk... https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2 — 200 — 111.9 KiB — 129 ms — h2https://ladysilvia.eu/static/css/ito-fonts/fonts/ito-icon-to5-essential.ttf?pnuta9/static/css/ito-fonts/fonts/ito-ico... https://ladysilvia.eu/static/css/ito-fonts/fonts/ito-icon-to5-essential.ttf?pnuta9 — 200 — 913.3 KiB — 367 ms — http/1.1https://ladysilvia.eu/favicon.ico/favicon.ico https://ladysilvia.eu/favicon.ico — 404 — 67.6 KiB — 51 ms — http/1.1https://ladysilvia.eu/articleImage/500/35512.jpg/articleImage/500/35512.jpg https://ladysilvia.eu/articleImage/500/35512.jpg — 200 — 41.1 KiB — 36 ms — http/1.1https://ladysilvia.eu/articleImage/500/35511.jpg/articleImage/500/35511.jpg https://ladysilvia.eu/articleImage/500/35511.jpg — 200 — 47.4 KiB — 101 ms — http/1.1https://ladysilvia.eu/articleImage/500/35510.jpg/articleImage/500/35510.jpg https://ladysilvia.eu/articleImage/500/35510.jpg — 200 — 74.1 KiB — 105 ms — http/1.1https://ladysilvia.eu/articleImage/500/35509.jpg/articleImage/500/35509.jpg https://ladysilvia.eu/articleImage/500/35509.jpg — 200 — 54.1 KiB — 98 ms — http/1.1https://ladysilvia.eu/articleImage/500/35507.jpg/articleImage/500/35507.jpg https://ladysilvia.eu/articleImage/500/35507.jpg — 200 — 52.5 KiB — 97 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
34 images, 896 KB total, 79 KB wasted
INFO

Image Optimization Audit

Total Images

34

Total Size

896 KB

Oversized

1

Wasted

79 KB

34 missing dimensions 2 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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