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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
97
GRADE
A+
FIX
0
REVIEW
3
PASS
9
INFO
2

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

Mobile Desktop
87
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
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.

1.96 s

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

3.34 s

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

161 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.

3.97 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.

3.34 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
14
9 PASS 3 REVIEW
B
JS Execution Cost
779ms total JS execution
REVIEW
779ms total JS execution
Warning::
Unattributable: 376ms CPU time
Warning::
https://vuejs.org/: 305ms CPU time
Info::
https://vuejs.org/assets/chunks/client.DgPLsILe.js: 98ms CPU time
Info::
Third-party scripts: 376ms (48% of total)

Main Thread Breakdown

Style & Layout 32% Script Evaluation 30% Other 30% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
Unattributable376ms174ms0ms3rd
https://vuejs.org/305ms13ms6ms1st
https://vuejs.org/assets/chunks/client.DgPLsILe.js98ms50ms0ms1st
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
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
209 KB transferred, 25 requests
PASS
209 KB transferred, 25 requests
Info::
Page weighs 524 KB (209 KB transferred)
Info::
25 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
209 KB / 2.4 MB budget
209 KB transferred
25 requests
0.04 g CO2 per page load
Fonts 70.1 KiB 34%
JavaScript 68.0 KiB 33%
CSS 39.6 KiB 19%
Other 16.1 KiB 8%
HTML 12.1 KiB 6%
Other 2.2 KiB 1%
Images 434 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
3% third-party, 0 ms blocking
PASS
3% third-party, 0 ms blocking
Info::
Third-party code accounts for 3% of page weight (7.0 KiB of 208.5 KiB)
Info::
Third-party blocking time is low (0 ms)
97%
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
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 0 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
1 fonts (70 KB)
PASS
1 fonts (70 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

70 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 1.0 s 2.0 s 3.0 s FCP 2.0 s LCP 3.3 shttps://vuejs.org/assets/inter-roman-latin.Cy4MYw_J.woff2inter-roman-latin.Cy4MY... https://vuejs.org/assets/inter-roman-latin.Cy4MYw_J.woff2 — 70.1 KiB — 0 ms — font-display: swap
inter-roman-latin.Cy4MY... woff2 swap
Size 70 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
16 scripts, 0 KB unused
PASS
16 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://vuejs.org/assets/app.B302o-iz.js4 KB—✓1st
https://vuejs.org/assets/chunks/plugin-vue_export-helper.DNfduuin.js0 KB—✓1st
https://vuejs.org/assets/chunks/preload-helper.CRHtBsWF.js1 KB—✓1st
https://vuejs.org/assets/chunks/client.DgPLsILe.js7 KB—✓1st
https://vuejs.org/assets/chunks/PreferenceSwitch.B1o1GYnp.js2 KB—✓1st
https://vuejs.org/assets/chunks/SponsorsGroup.Ch7RftWG.js1 KB—✓1st
https://vuejs.org/assets/chunks/src.CvoXmqPS.js16 KB—✓1st
https://vuejs.org/assets/chunks/runtime-core.esm-bundler.BK5ah_UL.js25 KB—✓1st
https://vuejs.org/assets/chunks/runtime-dom.esm-bundler.BLPxhSW6.js6 KB—✓1st
https://vuejs.org/assets/chunks/config.BY4V47D4.js1 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
20 hints, 0 missing preconnects
PASS
20 hints, 0 missing preconnects
Info::
Page uses 20 resource hint(s)

Current Resource Hints

preconnect
1
preload
2
dns-prefetch
—
prefetch
+7
17

20 resource hints configured

Network Waterfall
25 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
48% of JavaScript execution is third-party
First-party Third-party 376ms · 0KB · $5/mo
Unattributable
Other
Costly
Execution 376ms
Transfer 0 KB
Monthly Cost $5/mo

These scripts may cost more than they're worth

  • Unattributable adds 376ms and costs ~$5/month

48% 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 376ms 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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