Skip to content
https://www.bombas.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
66
GRADE
D
FIX
4
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
40
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
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.

615 ms

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

4.68 s

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

2.97 s

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.

2.86 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.

5.36 s

Page Load Progression

906 ms
1.8 s
2.7 s
3.6 s
4.5 s
5.4 s
6.3 s
7.2 s
Checks
14
5 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
6.5 MB transferred, 244 requests
FIX
6.5 MB transferred, 244 requests
Critical::
Page weighs 13.1 MB (6.5 MB transferred)
Warning::
Images are 4.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.1 MB
Warning::
JavaScript is 1.9 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.9 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::
244 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.4 g CO2 per page load
6.5 MB / 2.4 MB budget
6.5 MB transferred
244 requests
1.4 g CO2 per page load
Images 4.1 MiB 63%
JavaScript 1.9 MiB 30%
Fonts 221.3 KiB 3%
HTML 130.8 KiB 2%
Other 84.7 KiB 1%
Other 45.0 KiB 1%
Other 6.5 KiB 0%
Other 2.7 KiB 0%
CSS 2.2 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
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (6.5 MiB of 6.5 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
5982ms total JS execution
FIX
5982ms total JS execution
Warning::
https://bombas.com/_next/static/chunks/0ib_5iik~90...: 2512ms CPU time
Warning::
https://rapid-cdn.yottaa.com/rapid/lib/GmH3fFU4B0w...: 667ms CPU time
Warning::
Unattributable: 656ms CPU time
Warning::
https://bombas.com/: 611ms CPU time
Warning::
https://bombas.com/_next/static/chunks/13vjffz-381...: 364ms CPU time
Warning::
Third-party scripts: 5982ms (100% of total)

Main Thread Breakdown

Script Evaluation 68% Other 16% Style & Layout 5% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://bombas.com/_next/static/chunks/0ib_5iik~90jq.js2512ms2237ms12ms3rd
https://rapid-cdn.yottaa.com/rapid/lib/GmH3fFU4B0w24g.js667ms648ms10ms3rd
Unattributable656ms62ms0ms3rd
https://bombas.com/611ms2ms1ms3rd
https://bombas.com/_next/static/chunks/13vjffz-381mf.js364ms331ms0ms3rd
https://bombas.com/_next/static/chunks/turbopack-0qu-6fozbidx-.js229ms227ms1ms3rd
https://7ce243a1e1a2.cdn4.forter.com/sn/7ce243a1e1a2/script.js223ms193ms19ms3rd
(program):2185ms77ms0ms3rd
https://bombas.com/_next/static/chunks/turbopack-0zayac7vughho.js175ms160ms1ms3rd
https://cdn.cookielaw.org/scripttemplates/202502.1.0/otBannerSdk.js146ms88ms19ms3rd

Showing top 10 of 12 scripts

F
JS Bundles
Action
75 scripts, 1.0 MB unused
FIX
75 scripts, 1.0 MB 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/0pybc-l3f2....: 91 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bombas.com/_next/static/chunks/0neccr3p57_...: 87 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bombas.com/_next/static/chunks/0kg4.j.aqdl...: 87 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.0 MB
1034 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://bombas.com/_next/static/chunks/0867k.n1r23nb.js104 KB104 KB (100%)✓3rd
https://7ce243a1e1a2.cdn4.forter.com/sn/7ce243a1e1a2/script.js220 KB93 KB (43%)✓3rd
https://bombas.com/_next/static/chunks/0pybc-l3f2.l1.js92 KB91 KB (100%)✓3rd
https://bombas.com/_next/static/chunks/0neccr3p57_lp.js88 KB87 KB (100%)✓3rd
https://bombas.com/_next/static/chunks/0kg4.j.aqdlj0.js87 KB87 KB (100%)✓3rd
https://bombas.com/_next/static/chunks/069oqkz1.rx~r.js87 KB87 KB (100%)✓3rd
https://cnstrc.com/js/cust/bombas_g7fHrD.js104 KB75 KB (73%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202502.1.0/otBannerSdk.js115 KB61 KB (53%)✓3rd
https://bombas.com/_next/static/chunks/0thy_a9lxty-1.js105 KB57 KB (55%)✓3rd
https://bombas.com/_next/static/chunks/0d-3_g6ouema3.js44 KB43 KB (100%)✓3rd

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

B
Image Optimization
98 images, 0 KB saveable
REVIEW
98 images, 0 KB saveable
Info::
All images are well-optimized
98 images 4.1 MB
0 oversized -0 KB
35 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

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+
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 FCP 615 ms LCP 4.7 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 — 55.0 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 — 11.0 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 — 27.8 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
Network Waterfall
244 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
100% of JavaScript execution is third-party
First-party Third-party 5982ms · 777KB · €32/mo
bombas.com
Other
Costly
Execution 2512ms
Transfer 65 KB
Unused 32%
Monthly Cost €13/mo
rapid-cdn.yottaa.com
Other
Costly
Execution 667ms
Transfer 45 KB
Monthly Cost €4/mo
Unattributable
Other
Costly
Execution 656ms
Transfer 0 KB
Monthly Cost €3/mo
bombas.com
Other
Costly
Execution 611ms
Transfer 131 KB
Monthly Cost €3/mo
bombas.com
Other
Costly
Execution 364ms
Transfer 0 KB
Monthly Cost €2/mo
bombas.com
Other
Costly
Execution 229ms
Transfer 5 KB
Monthly Cost €1/mo
7ce243a1e1a2.cdn4.forter.com
Other
Costly
Execution 223ms
Transfer 220 KB
Unused 43%
Monthly Cost €1/mo
(program):2
Other
Optional
Execution 185ms
Transfer 0 KB
Monthly Cost €1/mo
bombas.com
Other
Optional
Execution 175ms
Transfer 5 KB
Monthly Cost €1/mo
OneTrust
Consent
Essential
Execution 146ms
Transfer 115 KB
Unused 53%
Monthly Cost €1/mo
bombas.com
Other
Optional
Execution 113ms
Transfer 88 KB
Unused 37%
Monthly Cost €1/mo
cnstrc.com
Other
Optional
Execution 100ms
Transfer 104 KB
Unused 73%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • bombas.com adds 2512ms and costs ~€13/month
  • rapid-cdn.yottaa.com adds 667ms and costs ~€4/month
  • Unattributable adds 656ms and costs ~€3/month
  • bombas.com adds 611ms and costs ~€3/month
  • bombas.com adds 364ms and costs ~€2/month
  • bombas.com adds 229ms and costs ~€1/month
  • 7ce243a1e1a2.cdn4.forter.com adds 223ms and costs ~€1/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

bombas.com takes 2512ms 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 667ms 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 656ms 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

bombas.com takes 611ms 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

bombas.com takes 364ms 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

bombas.com takes 229ms 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 223ms 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

53% of OneTrust'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

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.

Send Feedback