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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
69
GRADE
D
FIX
3
REVIEW
3
PASS
6
INFO
2

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

Mobile Desktop
44
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
74
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.
91
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.

1.49 s

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

16.43 s

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

989 ms

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

0.001

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

8.62 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.

18.06 s

Page Load Progression

685 ms
1.4 s
2.1 s
2.7 s
3.4 s
4.1 s
4.8 s
5.5 s
Checks
14
6 PASS 3 REVIEW 3 FIX
F
Page Weight Budget
Action
4.9 MB transferred, 158 requests
FIX
4.9 MB transferred, 158 requests
Critical::
Page weighs 10.7 MB (4.9 MB transferred)
Warning::
Images are 2.5 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.5 MB
Warning::
JavaScript is 2.0 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.0 MB
Warning::
158 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.0 g CO2 per page load
4.9 MB / 2.4 MB budget
4.9 MB transferred
158 requests
1.0 g CO2 per page load
Images 2.5 MiB 50%
JavaScript 2.0 MiB 41%
CSS 148.5 KiB 3%
Other 136.6 KiB 3%
Fonts 112.5 KiB 2%
HTML 54.6 KiB 1%
Other 29.9 KiB 1%
Other 443 B 0%
Other 342 B 0%
Other 0 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

F
JS Execution Cost
Action
5372ms total JS execution
FIX
5372ms total JS execution
Warning::
https://poolsuite.net/js/view-DefaultPage-vue.8f58...: 2569ms CPU time
Warning::
Unattributable: 867ms CPU time
Warning::
https://poolsuite.net/: 302ms CPU time
Warning::
https://poolsuite.net/js/6488.f24db24b.js: 259ms CPU time
Info::
https://connect.facebook.net/en_US/fbevents.js: 236ms CPU time
Info::
Third-party scripts: 1434ms (27% of total)

Main Thread Breakdown

Script Evaluation 59% Other 19% Script Parsing & Compilation 11% Style & Layout 6%
ScriptTotalScriptingParse/CompileParty
https://poolsuite.net/js/view-DefaultPage-vue.8f583e39.js2569ms1819ms289ms1st
Unattributable867ms73ms0ms3rd
https://poolsuite.net/302ms26ms3ms1st
https://poolsuite.net/js/6488.f24db24b.js259ms206ms6ms1st
https://connect.facebook.net/en_US/fbevents.js236ms182ms47ms3rd
https://poolsuite.net/js/3099.f53a458d.js227ms162ms64ms1st
https://poolsuite.net/js/4098.0102c551.js197ms166ms31ms1st
https://poolsuite.net/js/index.01134908.js186ms181ms4ms1st
https://embed.radio.co/embed/sc9cb59935/song.js130ms82ms19ms3rd
https://connect.facebook.net/signals/config/1671765563059003?v=2.9.291&r=stable&domain=poolsuite.net&hme=295b1b33901e14aeab879c0b58f907ef4d5f44fdd19814310771af911c5f6ac8&ex_m=102%2C198%2C147%2C22%2C70%2C71%2C139%2C66%2C65%2C11%2C155%2C88%2C16%2C132%2C124%2C37%2C73%2C76%2C130%2C152%2C157%2C8%2C4%2C5%2C7%2C6%2C3%2C89%2C99%2C158%2C163%2C212%2C60%2C179%2C180%2C53%2C267%2C30%2C72%2C224%2C223%2C222%2C23%2C32%2C101%2C59%2C10%2C61%2C95%2C96%2C97%2C103%2C127%2C31%2C29%2C129%2C126%2C125%2C148%2C74%2C151%2C149%2C150%2C48%2C58%2C120%2C15%2C154%2C43%2C254%2C255%2C253%2C26%2C27%2C28%2C46%2C140%2C75%2C110%2C18%2C20%2C42%2C38%2C40%2C39%2C81%2C90%2C94%2C108%2C138%2C141%2C44%2C109%2C24%2C21%2C116%2C67%2C35%2C143%2C142%2C144%2C135%2C133%2C25%2C34%2C57%2C107%2C153%2C68%2C17%2C145%2C112%2C79%2C64%2C19%2C83%2C84%2C113%2C82%2C33%2C284%2C205%2C194%2C195%2C193%2C287%2C279%2C50%2C206%2C105%2C128%2C78%2C118%2C52%2C45%2C47%2C111%2C117%2C123%2C56%2C62%2C51%2C54%2C98%2C156%2C1%2C121%2C14%2C119%2C12%2C2%2C55%2C91%2C63%2C115%2C87%2C86%2C159%2C160%2C92%2C93%2C9%2C122%2C100%2C49%2C136%2C85%2C77%2C69%2C114%2C104%2C41%2C137%2C0%2C80%2C131%2C134%2C146%2C36%2C106%2C13%2C161122ms100ms21ms3rd

Showing top 10 of 14 scripts

F
JS Bundles
Action
30 scripts, 586 KB unused
FIX
30 scripts, 586 KB unused
Warning::
https://poolsuite.net/js/view-DefaultPage-vue.8f58...: 396 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://poolsuite.net/js/3099.f53a458d.js: 50 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://poolsuite.net/js/chunk-vendors.e2d10250.js: 48 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://connect.facebook.net/en_US/fbevents.js: 32 KB unused (34%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://embed.radio.co/embed/sc9cb59935/song.js: 32 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 586 KB
586 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://poolsuite.net/js/view-DefaultPage-vue.8f583e39.js681 KB396 KB (58%)✓1st
https://poolsuite.net/js/3099.f53a458d.js120 KB50 KB (42%)✓1st
https://poolsuite.net/js/chunk-vendors.e2d10250.js93 KB48 KB (52%)✓1st
https://connect.facebook.net/en_US/fbevents.js95 KB32 KB (34%)✓3rd
https://embed.radio.co/embed/sc9cb59935/song.js54 KB32 KB (60%)✓3rd
https://poolsuite.net/js/4098.0102c551.js45 KB27 KB (60%)✓1st
https://poolsuite.net/js/8138.0ee7c805.js4 KB—✓1st
https://poolsuite.net/js/5223.f7ebaf75.js16 KB—✓1st
https://connect.facebook.net/signals/config/1671765563059003?v=2.9.291&r=stable&domain=poolsuite.net&hme=295b1b33901e14aeab879c0b58f907ef4d5f44fdd19814310771af911c5f6ac8&ex_m=102%2C198%2C147%2C22%2C70%2C71%2C139%2C66%2C65%2C11%2C155%2C88%2C16%2C132%2C124%2C37%2C73%2C76%2C130%2C152%2C157%2C8%2C4%2C5%2C7%2C6%2C3%2C89%2C99%2C158%2C163%2C212%2C60%2C179%2C180%2C53%2C267%2C30%2C72%2C224%2C223%2C222%2C23%2C32%2C101%2C59%2C10%2C61%2C95%2C96%2C97%2C103%2C127%2C31%2C29%2C129%2C126%2C125%2C148%2C74%2C151%2C149%2C150%2C48%2C58%2C120%2C15%2C154%2C43%2C254%2C255%2C253%2C26%2C27%2C28%2C46%2C140%2C75%2C110%2C18%2C20%2C42%2C38%2C40%2C39%2C81%2C90%2C94%2C108%2C138%2C141%2C44%2C109%2C24%2C21%2C116%2C67%2C35%2C143%2C142%2C144%2C135%2C133%2C25%2C34%2C57%2C107%2C153%2C68%2C17%2C145%2C112%2C79%2C64%2C19%2C83%2C84%2C113%2C82%2C33%2C284%2C205%2C194%2C195%2C193%2C287%2C279%2C50%2C206%2C105%2C128%2C78%2C118%2C52%2C45%2C47%2C111%2C117%2C123%2C56%2C62%2C51%2C54%2C98%2C156%2C1%2C121%2C14%2C119%2C12%2C2%2C55%2C91%2C63%2C115%2C87%2C86%2C159%2C160%2C92%2C93%2C9%2C122%2C100%2C49%2C136%2C85%2C77%2C69%2C114%2C104%2C41%2C137%2C0%2C80%2C131%2C134%2C146%2C36%2C106%2C13%2C16139 KB—✓3rd
https://poolsuite.net/js/876.b157d96c.js2 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

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

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

C
Image Optimization
Action
90 images, 0 KB saveable
REVIEW
90 images, 0 KB saveable
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
90 images 2.5 MB
0 oversized -0 KB
53 legacy format
2 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

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

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
Third-Party Impact
28% third-party, 0 ms blocking
PASS
28% third-party, 0 ms blocking
Info::
Third-party code accounts for 28% of page weight (1.4 MiB of 4.9 MiB)
Info::
Third-party blocking time is low (0 ms)
72%
28%
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
6 fonts (112 KB)
PASS
6 fonts (112 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

112 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 1.5 s LCP 16.4 sdata:font/woff2;base64,d09GMgABAAAAABeAAA4AAAAAp6wAABcjAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP0ZGVE0cGiYG…woff2;base64,d09GMgABAA... data:font/woff2;base64,d09GMgABAAAAABeAAA4AAAAAp6wAABcjAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP0ZGVE0cGiYG… — 5.9 KiB — 0 ms — font-display: swapdata:font/woff2;base64,d09GMgABAAAAABt4AA4AAAAArGQAABsaAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP0ZGVE0cGiYG…woff2;base64,d09GMgABAA... data:font/woff2;base64,d09GMgABAAAAABt4AA4AAAAArGQAABsaAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP0ZGVE0cGiYG… — 6.9 KiB — 0 ms — font-display: swaphttps://poolsuite.net/fonts/ChiKareGo2.939bb935.woffChiKareGo2.939bb935.woff https://poolsuite.net/fonts/ChiKareGo2.939bb935.woff — 16.0 KiB — 0 ms — font-display: swapdata:font/woff2;base64,d09GMgABAAAAAAtkAA0AAAAARFQAAAsNAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP0ZGVE0cGh4G…woff2;base64,d09GMgABAA... data:font/woff2;base64,d09GMgABAAAAAAtkAA0AAAAARFQAAAsNAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP0ZGVE0cGh4G… — 2.8 KiB — 0 ms — font-display: swaphttps://poolsuite.net/fonts/Ishmeria.7b6f3786.woff2Ishmeria.7b6f3786.woff2 https://poolsuite.net/fonts/Ishmeria.7b6f3786.woff2 — 47.0 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 0 ms — font-display: swap
woff2;base64,d09GMgABAA... woff2 swap
Size 6 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
woff2;base64,d09GMgABAA... woff2 swap
Size 7 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ChiKareGo2.939bb935.woff woff swap
Size 16 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
woff2;base64,d09GMgABAA... woff2 swap
Size 3 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Ishmeria.7b6f3786.woff2 woff2 swap
Size 47 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 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)

Fixing the unchecked items could save ~5 KB and ~10 ms

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
9 hints, 0 missing preconnects
PASS
9 hints, 0 missing preconnects
Info::
Page uses 9 resource hint(s)

Current Resource Hints

preconnect
2
preload
7
dns-prefetch
—
prefetch
—

9 resource hints configured

Network Waterfall
158 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
27% of JavaScript execution is third-party
First-party Third-party 1434ms · 198KB · $19/mo
Unattributable
Other
Costly
Execution 867ms
Transfer 0 KB
Monthly Cost $12/mo
Facebook Pixel
Advertising
Costly
Execution 236ms
Transfer 95 KB
Unused 34%
Monthly Cost $3/mo
embed.radio.co
Other
Optional
Execution 130ms
Transfer 54 KB
Unused 60%
Monthly Cost $2/mo
Facebook Pixel
Advertising
Optional
Execution 122ms
Transfer 39 KB
Monthly Cost $2/mo
www.youtube.com
Other
Optional
Execution 80ms
Transfer 11 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 867ms and costs ~$12/month
  • Facebook Pixel adds 236ms and costs ~$3/month

Unattributable takes 867ms 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

Facebook Pixel takes 236ms 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

60% of embed.radio.co's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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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