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https://www.classicivivi.it

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
0
REVIEW
2
PASS
12
INFO
2

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

Mobile Desktop
63
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
93
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

4.56 s

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

4.56 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

388 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.004

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

4.56 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.

5.18 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 s
Checks
16
12 PASS 2 REVIEW
C
JS Execution Cost
Action
1731ms total JS execution
REVIEW
1731ms total JS execution
Warning::
https://www.classicivivi.it/: 694ms CPU time
Warning::
https://scripts.clarity.ms/0.8.59/clarity.js: 618ms CPU time
Warning::
Unattributable: 289ms CPU time
Info::
https://www.classicivivi.it/cdn-cgi/scripts/5c5dd7...: 73ms CPU time
Info::
https://static.cloudflareinsights.com/beacon.min.j...: 58ms CPU time
Warning::
Third-party scripts: 964ms (56% of total)

Main Thread Breakdown

Other 35% Script Evaluation 33% Style & Layout 22% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://www.classicivivi.it/694ms21ms23ms1st
https://scripts.clarity.ms/0.8.59/clarity.js618ms464ms12ms3rd
Unattributable289ms6ms0ms3rd
https://www.classicivivi.it/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js73ms49ms2ms1st
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451658ms35ms5ms3rd
B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
A+
Page Weight Budget
467 KB transferred, 17 requests
PASS
467 KB transferred, 17 requests
Info::
Page weighs 947 KB (467 KB transferred)
Info::
17 HTTP requests
Info::
Estimated 0.10 g CO2 per page load
467 KB / 2.4 MB budget
467 KB transferred
17 requests
0.10 g CO2 per page load
HTML 317.1 KiB 68%
Fonts 107.1 KiB 23%
JavaScript 39.0 KiB 8%
CSS 1.4 KiB 0%
Other 1.3 KiB 0%
Other 735 B 0%
Images 466 B 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
32% third-party, 0 ms blocking
PASS
32% third-party, 0 ms blocking
Info::
Third-party code accounts for 32% of page weight (148.5 KiB of 467.0 KiB)
Info::
Third-party blocking time is low (0 ms)
68%
32%
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
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Warning::
data:image/png;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
3 images 0 KB
0 oversized -0 KB
1 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

A+
Font Loading
3 fonts (107 KB)
PASS
3 fonts (107 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

107 KB total

Render-blocking

0

of 3

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 FCP 4.6 s LCP 4.6 shttps://fonts.gstatic.com/s/cinzel/v26/8vIJ7ww63mVu7gt79mT7PkRXMw.woff28vIJ7ww63mVu7gt79mT7PkR... https://fonts.gstatic.com/s/cinzel/v26/8vIJ7ww63mVu7gt79mT7PkRXMw.woff2 — 25.3 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/ebgaramond/v32/SlGWmQSNjdsmc35JDF1K5GRweDs1ZyHKpWg.woff2SlGWmQSNjdsmc35JDF1K5GR... https://fonts.gstatic.com/s/ebgaramond/v32/SlGWmQSNjdsmc35JDF1K5GRweDs1ZyHKpWg.woff2 — 41.5 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/ebgaramond/v32/SlGUmQSNjdsmc35JDF1K5GR1SDk_YAPI.woff2SlGUmQSNjdsmc35JDF1K5GR... https://fonts.gstatic.com/s/ebgaramond/v32/SlGUmQSNjdsmc35JDF1K5GR1SDk_YAPI.woff2 — 40.3 KiB — 0 ms — font-display: swap
8vIJ7ww63mVu7gt79mT7PkR... woff2 swap
Size 25 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SlGWmQSNjdsmc35JDF1K5GR... woff2 swap
Size 42 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SlGUmQSNjdsmc35JDF1K5GR... woff2 swap
Size 40 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
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)
A+
JS Bundles
4 scripts, 0 KB unused
PASS
4 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.classicivivi.it/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js1 KB—✓1st
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451611 KB—✓3rd
https://www.clarity.ms/tag/w7l4bipy351 KB—✓3rd
https://scripts.clarity.ms/0.8.59/clarity.js26 KB—✓3rd
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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
2
preload
—
dns-prefetch
—
prefetch
—

2 resource hints configured

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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
17 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
56% of JavaScript execution is third-party
First-party Third-party 964ms · 37KB · €10/mo
Microsoft Clarity
Session Replay
Costly
Execution 618ms
Transfer 26 KB
Monthly Cost €7/mo
Unattributable
Other
Costly
Execution 289ms
Transfer 0 KB
Monthly Cost €3/mo
static.cloudflareinsights.com
Other
Optional
Execution 58ms
Transfer 11 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Microsoft Clarity adds 618ms and costs ~€7/month
  • Unattributable adds 289ms and costs ~€3/month

56% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

Microsoft Clarity takes 618ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 289ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

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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