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https://bombas.com

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
46
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
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.

1.75 s

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

5.83 s

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

4.49 s

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.

3.70 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.

20.39 s

Page Load Progression

498 ms
995 ms
1.5 s
2.0 s
2.5 s
3.0 s
3.5 s
4.0 s
Checks
16
7 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
6.1 MB transferred, 211 requests
FIX
6.1 MB transferred, 211 requests
Critical::
Page weighs 11.8 MB (6.1 MB transferred)
Warning::
Images are 4.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.0 MB
Warning::
JavaScript is 1.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.7 MB
Info::
Fonts are 221 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 221 KB
Warning::
211 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.3 g CO2 per page load
6.1 MB / 2.4 MB budget
6.1 MB transferred
211 requests
1.3 g CO2 per page load
Images 4.0 MiB 66%
JavaScript 1.7 MiB 27%
Fonts 221.4 KiB 4%
HTML 139.7 KiB 2%
Other 41.9 KiB 1%
Other 18.1 KiB 0%
Other 4.0 KiB 0%
Other 2.7 KiB 0%
CSS 2.3 KiB 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

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

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
Third-Party Impact
Action
73% third-party, 0 ms blocking
FIX
73% third-party, 0 ms blocking
Warning::
Third-party code accounts for 73% of page weight (4.4 MiB of 6.1 MiB)
Info::
Third-party blocking time is low (0 ms)
27%
73%
First-party Third-party
F
JS Execution Cost
Action
10903ms total JS execution
FIX
10903ms total JS execution
Warning::
https://bombas.com/_next/static/chunks/0ib_5iik~90...: 3545ms CPU time
Warning::
https://bombas.com/_next/static/chunks/13vjffz-381...: 1592ms CPU time
Warning::
https://bombas.com/: 1487ms CPU time
Warning::
Unattributable: 1353ms CPU time
Warning::
https://rapid-cdn.yottaa.com/rapid/lib/GmH3fFU4B0w...: 634ms CPU time
Info::
Third-party scripts: 3272ms (30% of total)

Main Thread Breakdown

Script Evaluation 63% Other 21% Style & Layout 5% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://bombas.com/_next/static/chunks/0ib_5iik~90jq.js3545ms3091ms17ms1st
https://bombas.com/_next/static/chunks/13vjffz-381mf.js1592ms1531ms0ms1st
https://bombas.com/1487ms6ms5ms1st
Unattributable1353ms63ms0ms3rd
https://rapid-cdn.yottaa.com/rapid/lib/GmH3fFU4B0w24g.js634ms610ms16ms3rd
(program):2524ms189ms0ms3rd
https://7ce243a1e1a2.cdn4.forter.com/sn/7ce243a1e1a2/script.js470ms403ms38ms3rd
https://bombas.com/_next/static/chunks/turbopack-0salsgdf-xtvg.js393ms391ms1ms1st
https://bombas.com/_next/static/chunks/turbopack-09zswmu9nrwnp.js315ms313ms1ms1st
https://bombas.com/_next/static/chunks/0eiiuiajnq8ew.js177ms128ms25ms1st

Showing top 10 of 14 scripts

F
JS Bundles
Action
66 scripts, 892 KB unused
FIX
66 scripts, 892 KB unused
Warning::
https://bombas.com/_next/static/chunks/0867k.n1r23...: 104 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://7ce243a1e1a2.cdn4.forter.com/sn/7ce243a1e1...: 93 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bombas.com/_next/static/chunks/0qupdofk11p...: 92 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bombas.com/_next/static/chunks/0s~n474~~e9...: 87 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bombas.com/_next/static/chunks/0zdt6~o2utv...: 87 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 892 KB
892 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://bombas.com/_next/static/chunks/0867k.n1r23nb.js104 KB104 KB (100%)✓1st
https://7ce243a1e1a2.cdn4.forter.com/sn/7ce243a1e1a2/script.js220 KB93 KB (43%)✓3rd
https://bombas.com/_next/static/chunks/0qupdofk11pzs.js92 KB92 KB (100%)✓1st
https://bombas.com/_next/static/chunks/0s~n474~~e95h.js88 KB87 KB (100%)✓1st
https://bombas.com/_next/static/chunks/0zdt6~o2utvpy.js88 KB87 KB (100%)✓1st
https://cnstrc.com/js/cust/bombas_g7fHrD.js104 KB75 KB (73%)✓3rd
https://bombas.com/_next/static/chunks/0ukw72uh~tyai.js105 KB58 KB (55%)✓1st
https://bombas.com/_next/static/chunks/0ljx.6zm6nv4a.js44 KB43 KB (100%)✓1st
https://bombas.com/_next/static/chunks/0.2xgp.xtundq.js92 KB39 KB (43%)✓1st
https://bombas.com/_next/static/chunks/0zpxaxbk.74uu.js39 KB38 KB (99%)✓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

D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, no-cache, no-store, max-age=0, must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control

private, no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
B
Image Optimization
90 images, 0 KB saveable
REVIEW
90 images, 0 KB saveable
Info::
All images are well-optimized
90 images 4.0 MB
0 oversized -0 KB
28 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
8 fonts (221 KB)
PASS
8 fonts (221 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

221 KB total

Render-blocking

0

of 8

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 FCP 1.8 s LCP 5.8 shttps://bombas.com/_next/static/media/Conforto_Regular-s.p.0aps3dws07utc.woff2Conforto_Regular-s.p.0a... https://bombas.com/_next/static/media/Conforto_Regular-s.p.0aps3dws07utc.woff2 — 29.5 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/Conforto_Medium-s.p.04j0yf0oa8dqb.woff2Conforto_Medium-s.p.04j... https://bombas.com/_next/static/media/Conforto_Medium-s.p.04j0yf0oa8dqb.woff2 — 29.5 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/Conforto_Bold-s.p.0p_4f57iqdaxu.woff2Conforto_Bold-s.p.0p_4f... https://bombas.com/_next/static/media/Conforto_Bold-s.p.0p_4f57iqdaxu.woff2 — 28.4 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/Bombas_Glyphs-s.p.03pr_qb9f8.76.woff2Bombas_Glyphs-s.p.03pr_... https://bombas.com/_next/static/media/Bombas_Glyphs-s.p.03pr_qb9f8.76.woff2 — 8.8 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/Decoy_Light-s.p.0o~1vz3s4vp8a.woff2Decoy_Light-s.p.0o~1vz3... https://bombas.com/_next/static/media/Decoy_Light-s.p.0o~1vz3s4vp8a.woff2 — 55.1 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/Cabrio_Poster-s.p.0x99~evmn6gcu.woff2Cabrio_Poster-s.p.0x99~... https://bombas.com/_next/static/media/Cabrio_Poster-s.p.0x99~evmn6gcu.woff2 — 31.2 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/BombasIcon-s.p.062jgp0crfddd.woff2BombasIcon-s.p.062jgp0c... https://bombas.com/_next/static/media/BombasIcon-s.p.062jgp0crfddd.woff2 — 11.4 KiB — 0 ms — font-display: swaphttps://bombas.com/_next/static/media/GoogleSans-s.p.01_sj.qp6-e.r.ttfGoogleSans-s.p.01_sj.qp... https://bombas.com/_next/static/media/GoogleSans-s.p.01_sj.qp6-e.r.ttf — 27.5 KiB — 0 ms — font-display: swap
Conforto_Regular-s.p.0a... woff2 swap
Size 30 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Conforto_Medium-s.p.04j... woff2 swap
Size 30 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Conforto_Bold-s.p.0p_4f... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Bombas_Glyphs-s.p.03pr_... woff2 swap
Size 9 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Decoy_Light-s.p.0o~1vz3... woff2 swap
Size 55 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Cabrio_Poster-s.p.0x99~... woff2 swap
Size 31 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
BombasIcon-s.p.062jgp0c... woff2 swap
Size 11 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
GoogleSans-s.p.01_sj.qp... ttf swap
Size 28 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
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 ~8 KB and ~16 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
48 hints, 0 missing preconnects
PASS
48 hints, 0 missing preconnects
Info::
Page uses 48 resource hint(s)

Current Resource Hints

preconnect
—
preload
+38
48
dns-prefetch
—
prefetch
—

48 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
Network Waterfall
211 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
30% of JavaScript execution is third-party
First-party Third-party 3272ms · 373KB · €17/mo
Unattributable
Other
Costly
Execution 1353ms
Transfer 0 KB
Monthly Cost €7/mo
rapid-cdn.yottaa.com
Other
Costly
Execution 634ms
Transfer 45 KB
Unused 60%
Monthly Cost €3/mo
(program):2
Other
Costly
Execution 524ms
Transfer 0 KB
Monthly Cost €3/mo
7ce243a1e1a2.cdn4.forter.com
Other
Costly
Execution 470ms
Transfer 220 KB
Unused 43%
Monthly Cost €2/mo
cnstrc.com
Other
Optional
Execution 172ms
Transfer 104 KB
Unused 73%
Monthly Cost €1/mo
a42cdn.usablenet.com
Other
Optional
Execution 119ms
Transfer 5 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 1353ms and costs ~€7/month
  • rapid-cdn.yottaa.com adds 634ms and costs ~€3/month
  • (program):2 adds 524ms and costs ~€3/month
  • 7ce243a1e1a2.cdn4.forter.com adds 470ms and costs ~€2/month

Unattributable takes 1353ms 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

rapid-cdn.yottaa.com takes 634ms 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 rapid-cdn.yottaa.com'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

(program):2 takes 524ms 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

7ce243a1e1a2.cdn4.forter.com takes 470ms 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

73% of cnstrc.com'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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