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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
78
GRADE
C
FIX
2
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
88
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.
100
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.

659 ms

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

941 ms

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

269 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.

1.05 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.

2.67 s

Page Load Progression

457 ms
913 ms
1.4 s
1.8 s
2.3 s
2.7 s
3.2 s
3.7 s
Checks
14
7 PASS 3 REVIEW 2 FIX
F
Page Weight Budget
Action
3.5 MB transferred, 156 requests
FIX
3.5 MB transferred, 156 requests
Warning::
Page weighs 15.1 MB (3.5 MB transferred)
Warning::
JavaScript is 571 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 571 KB
Warning::
156 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.74 g CO2 per page load
3.5 MB / 2.4 MB budget
3.5 MB transferred
156 requests
0.74 g CO2 per page load
Other 2.5 MiB 71%
JavaScript 571.3 KiB 16%
Images 328.9 KiB 9%
Other 53.7 KiB 1%
HTML 36.7 KiB 1%
CSS 34.0 KiB 1%
Fonts 26.2 KiB 1%
0 2.4 MB 4.9 MB
Over budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
JS Execution Cost
Action
2206ms total JS execution
FIX
2206ms total JS execution
Warning::
Unattributable: 911ms CPU time
Warning::
https://nuxt.com/_nuxt/Beu1Wg--.js: 652ms CPU time
Warning::
https://nuxt.com/: 574ms CPU time
Info::
https://nuxt.com/_nuxt/CJYNbdVL.js: 70ms CPU time
Info::
Third-party scripts: 911ms (41% of total)

Main Thread Breakdown

Script Evaluation 49% Other 31% Style & Layout 14%
ScriptTotalScriptingParse/CompileParty
Unattributable911ms332ms0ms3rd
https://nuxt.com/_nuxt/Beu1Wg--.js652ms565ms2ms1st
https://nuxt.com/574ms151ms1ms1st
https://nuxt.com/_nuxt/CJYNbdVL.js70ms31ms0ms1st
B
Image Optimization
41 images, 0 KB saveable
REVIEW
41 images, 0 KB saveable
Info::
All images are well-optimized
41 images 329 KB
0 oversized -0 KB
9 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
60 scripts, 191 KB unused
REVIEW
60 scripts, 191 KB unused
Warning::
https://nuxt.com/_nuxt/Beu1Wg--.js: 157 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://nuxt.com/_nuxt/C0X4-dmO.js: 34 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 191 KB
191 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://nuxt.com/_nuxt/Beu1Wg--.js340 KB157 KB (46%)✓1st
https://nuxt.com/_nuxt/C0X4-dmO.js60 KB34 KB (57%)✓1st
https://nuxt.com/_nuxt/CJ_KDMkW.js1 KB—✓1st
https://nuxt.com/_nuxt/CL2wAdSk.js7 KB—✓1st
https://nuxt.com/_nuxt/B5kkgwXa.js0 KB—✓1st
https://nuxt.com/_nuxt/DyXJsd6F.js2 KB—✓1st
https://nuxt.com/_nuxt/CsUMDQRv.js2 KB—✓1st
https://nuxt.com/_nuxt/NoXbp_s1.js1 KB—✓1st
https://nuxt.com/_nuxt/Cg9HtOXd.js1 KB—✓1st
https://nuxt.com/_nuxt/BPz1B7ro.js1 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

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

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::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
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+
Third-Party Impact
9% third-party, 0 ms blocking
PASS
9% third-party, 0 ms blocking
Info::
Third-party code accounts for 9% of page weight (329.7 KiB of 3.5 MiB)
Info::
Third-party blocking time is low (0 ms)
91%
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
1 fonts (26 KB)
PASS
1 fonts (26 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

26 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 659 ms LCP 941 mshttps://nuxt.com/_fonts/GsKUclqeNLJ96g5AU593ug6yanivOiwjW_7zESNPChw-jHA4tBeM1bjF7LATGUpfBuSTyomIFrWBTzjF7txVYfg.woff2GsKUclqeNLJ96g5AU593ug6... https://nuxt.com/_fonts/GsKUclqeNLJ96g5AU593ug6yanivOiwjW_7zESNPChw-jHA4tBeM1bjF7LATGUpfBuSTyomIFrWBTzjF7txVYfg.woff2 — 26.2 KiB — 0 ms — font-display: swap
GsKUclqeNLJ96g5AU593ug6... woff2 swap
Size 26 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+
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+
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
156 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
41% of JavaScript execution is third-party
First-party Third-party 911ms · 0KB · €10/mo
Unattributable
Other
Costly
Execution 911ms
Transfer 0 KB
Monthly Cost €10/mo

These scripts may cost more than they're worth

  • Unattributable adds 911ms and costs ~€10/month

41% 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

Unattributable takes 911ms 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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