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

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
65
GRADE
D
FIX
5
REVIEW
2
PASS
5
INFO
2

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

Mobile Desktop
62
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
77
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.

595 ms

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

1.16 s

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

105 ms

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

1.075

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

7.66 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.

2.65 s

Page Load Progression

1.9 s
3.8 s
5.8 s
7.7 s
9.6 s
11.5 s
13.4 s
15.3 s
Checks
14
5 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
4.7 MB transferred, 101 requests
FIX
4.7 MB transferred, 101 requests
Critical::
Page weighs 10.8 MB (4.7 MB transferred)
Warning::
JavaScript is 1.5 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.5 MB
Info::
Fonts are 371 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 371 KB
Warning::
101 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.99 g CO2 per page load
4.7 MB / 2.4 MB budget
4.7 MB transferred
101 requests
0.99 g CO2 per page load
Other 2.0 MiB 42%
JavaScript 1.5 MiB 32%
Images 375.2 KiB 8%
Fonts 371.1 KiB 8%
Other 321.5 KiB 7%
CSS 141.8 KiB 3%
HTML 72.0 KiB 1%
Other 2.5 KiB 0%
Other 928 B 0%
Other 287 B 0%
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

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
82% third-party, 0 ms blocking
FIX
82% third-party, 0 ms blocking
Warning::
Third-party code accounts for 82% of page weight (3.9 MiB of 4.7 MiB)
Info::
Third-party blocking time is low (0 ms)
18%
82%
First-party Third-party
F
JS Execution Cost
Action
14798ms total JS execution
FIX
14798ms total JS execution
Warning::
https://wsv3cdn.audioeye.com/static-scripts/m/audi...: 11510ms CPU time
Warning::
Unattributable: 924ms CPU time
Warning::
https://www.samsung.com/us/: 569ms CPU time
Warning::
https://www.samsung.com/etc.clientlibs/samsung/cli...: 494ms CPU time
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 469ms CPU time
Warning::
Third-party scripts: 13500ms (91% of total)

Main Thread Breakdown

Script Evaluation 81% Other 10% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://wsv3cdn.audioeye.com/static-scripts/m/audioeye-scanner-esm/v11.0.34/audioeye-scanner-esm.js11510ms10817ms0ms3rd
Unattributable924ms53ms0ms3rd
https://www.samsung.com/us/569ms21ms3ms1st
https://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-base-ux25.min.2ce5aa04b94973bb8fb3c8d0e6ee6c3d.js494ms222ms17ms1st
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js469ms411ms29ms3rd
https://s.go-mpulse.net/boomerang/VRZKC-5BSTD-4EWS3-R2J59-B8GYB238ms152ms5ms3rd
https://www.samsung.com/etc.clientlibs/samsung/components/content/consumer/global/home/ho-g-hero-kv-home/clientlibs/site.min.1c9a0aae958e478199dc22f247e117a7.js151ms10ms1ms1st
https://wsv3cdn.audioeye.com/static-scripts/v2/2026-03-27/startup.bundle.js109ms86ms22ms3rd
https://consent.trustarc.com/notice?domain=samsung.com.us&c=teconsent&js=nj&noticeType=bb&text=true&gtm=1&pcookie100ms43ms2ms3rd
https://assets.adobedtm.com/72afb75f5516/8609776c4c4c/launch-6dab4959fb1e.min.js88ms67ms18ms3rd

Showing top 10 of 12 scripts

F
JS Bundles
Action
36 scripts, 870 KB unused
FIX
36 scripts, 870 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.samsung.com/etc.clientlibs/samsung/cli...: 100 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://wsv3cdn.audioeye.com/static-scripts/v2/202...: 66 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 870 KB
870 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js0 KB179 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB179 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB179 KB (49%)✓3rd
https://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-base-ux25.min.2ce5aa04b94973bb8fb3c8d0e6ee6c3d.js155 KB100 KB (65%)✓1st
https://wsv3cdn.audioeye.com/static-scripts/v2/2026-03-27/startup.bundle.js124 KB66 KB (53%)✓3rd
https://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-dependencies.min.407b108c60433f00a6b1a0e8f272a2c1.js59 KB34 KB (58%)✓1st
https://assets.adobedtm.com/72afb75f5516/8609776c4c4c/launch-6dab4959fb1e.min.js90 KB33 KB (37%)✓3rd
https://wsv3cdn.audioeye.com/static-scripts/m/audioeye-scanner-esm/v11.0.34/audioeye-scanner-esm.js80 KB29 KB (36%)✓3rd
https://s.go-mpulse.net/boomerang/VRZKC-5BSTD-4EWS3-R2J59-B8GYB58 KB24 KB (42%)✓3rd
https://consent.trustarc.com/asset/integration-builder-v1.1.0.min.js42 KB24 KB (57%)✓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

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: max-age=0, no-cache, no-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=0, no-cache, no-store

DirectiveValueMeaning
max-age0Cache for 0 seconds
no-cache—Cache but always revalidate first
no-store—Never cache this response
C
Image Optimization
Action
27 images, 0 KB saveable
REVIEW
27 images, 0 KB saveable
Warning::
https://images.samsung.com/is/image/samsung/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.samsung.com/is/image/samsung/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.samsung.com/is/image/samsung/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.samsung.com/is/image/samsung/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.samsung.com/is/content/samsung/asse... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://consent.trustarc.com/get?name=samsungblack... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.samsung.com/is/image/samsung/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
27 images 375 KB
0 oversized -0 KB
10 legacy format
7 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

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

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

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

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
7 fonts (371 KB)
PASS
7 fonts (371 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

371 KB total

Render-blocking

0

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 595 ms LCP 1.2 shttps://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-site/resources/us/font/SamsungSharpSansBd.woff2SamsungSharpSansBd.woff2 https://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-site/resources/us/font/SamsungSharpSansBd.woff2 — 59.8 KiB — 0 ms — font-display: swaphttps://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-site/resources/us/font/SamsungOneLatinWeb-700.woff2SamsungOneLatinWeb-700.... https://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-site/resources/us/font/SamsungOneLatinWeb-700.woff2 — 38.5 KiB — 0 ms — font-display: swaphttps://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-site/resources/us/font/SamsungOneLatinWeb-400.woff2SamsungOneLatinWeb-400.... https://www.samsung.com/etc.clientlibs/samsung/clientlibs/consumer/global/clientlib-site/resources/us/font/SamsungOneLatinWeb-400.woff2 — 38.3 KiB — 0 ms — font-display: swapdata:application/font-woff;charset=utf-8;base64,d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAAA…font-woff;charset=utf-8... data:application/font-woff;charset=utf-8;base64,d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAAA… — 1.6 KiB — 0 ms — font-display: swaphttps://consent.trustarc.com/get?name=SamsungSharpSans-Bold.ttfget https://consent.trustarc.com/get?name=SamsungSharpSans-Bold.ttf — 99.9 KiB — 0 ms — font-display: swaphttps://consent.trustarc.com/get?name=SamsungSharpSans-Medium.ttfget https://consent.trustarc.com/get?name=SamsungSharpSans-Medium.ttf — 99.1 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
SamsungSharpSansBd.woff2 woff2 swap
Size 60 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SamsungOneLatinWeb-700.... woff2 swap
Size 39 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SamsungOneLatinWeb-400.... woff2 swap
Size 38 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
font-woff;charset=utf-8... woff swap
Size 2 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
get ttf swap
Size 100 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
get ttf swap
Size 99 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
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 ~60 KB and ~120 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
101 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
91% of JavaScript execution is third-party
First-party Third-party 13500ms · 408KB · ₩104433/mo
wsv3cdn.audioeye.com
Other
Costly
Execution 11510ms
Transfer 80 KB
Unused 36%
Monthly Cost ₩89044/mo
Unattributable
Other
Costly
Execution 924ms
Transfer 0 KB
Monthly Cost ₩7151/mo
www.gstatic.com
Other
Costly
Execution 469ms
Transfer 0 KB
Unused 49%
Monthly Cost ₩3632/mo
s.go-mpulse.net
Other
Costly
Execution 238ms
Transfer 58 KB
Unused 42%
Monthly Cost ₩1843/mo
wsv3cdn.audioeye.com
Other
Costly
Execution 109ms
Transfer 124 KB
Unused 53%
Monthly Cost ₩844/mo
consent.trustarc.com
Other
Costly
Execution 100ms
Transfer 18 KB
Monthly Cost ₩770/mo
assets.adobedtm.com
Other
Costly
Execution 88ms
Transfer 90 KB
Unused 37%
Monthly Cost ₩682/mo
consent.trustarc.com
Other
Costly
Execution 60ms
Transfer 36 KB
Unused 59%
Monthly Cost ₩467/mo

These scripts may cost more than they're worth

  • wsv3cdn.audioeye.com adds 11510ms and costs ~₩89044/month
  • Unattributable adds 924ms and costs ~₩7151/month
  • www.gstatic.com adds 469ms and costs ~₩3632/month
  • s.go-mpulse.net adds 238ms and costs ~₩1843/month
  • wsv3cdn.audioeye.com adds 109ms and costs ~₩844/month
  • consent.trustarc.com adds 100ms and costs ~₩770/month
  • assets.adobedtm.com adds 88ms and costs ~₩682/month
  • consent.trustarc.com adds 60ms and costs ~₩467/month

91% 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

wsv3cdn.audioeye.com takes 11510ms 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 924ms 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

www.gstatic.com takes 469ms 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

s.go-mpulse.net takes 238ms 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

wsv3cdn.audioeye.com takes 109ms 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 wsv3cdn.audioeye.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

consent.trustarc.com takes 100ms 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

assets.adobedtm.com takes 88ms 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

consent.trustarc.com takes 60ms 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

59% of consent.trustarc.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