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https://kakao.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
68
GRADE
D
FIX
4
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
55
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
92
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.
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.

4.87 s

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

7.51 s

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

50 ms

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

0.009

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

6.77 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.

7.54 s

Page Load Progression

1.1 s
2.3 s
3.4 s
4.6 s
5.7 s
6.9 s
8.0 s
9.2 s
Checks
15
5 PASS 4 REVIEW 4 FIX
F
Page Weight Budget
Action
12.2 MB transferred, 89 requests
FIX
12.2 MB transferred, 89 requests
Critical::
Page weighs 15.5 MB (12.2 MB transferred)
Warning::
Images are 6.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 6.6 MB
Info::
Fonts are 1.3 MB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 1.3 MB
Warning::
JavaScript is 1.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.1 MB
Info::
89 HTTP requests
Info::
Estimated 2.6 g CO2 per page load
12.2 MB / 2.4 MB budget
12.2 MB transferred
89 requests
2.6 g CO2 per page load
Images 6.6 MiB 54%
Other 3.1 MiB 25%
Fonts 1.3 MiB 11%
JavaScript 1.1 MiB 9%
CSS 79.2 KiB 1%
HTML 29.4 KiB 0%
Other 18.1 KiB 0%
Other 1.8 KiB 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

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

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

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 (12.2 MiB of 12.2 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
15 scripts, 572 KB unused
FIX
15 scripts, 572 KB unused
Warning::
https://www.kakaocorp.com/page/_nuxt/295cdd1.js: 166 KB unused (85%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-E3B6...: 110 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-E3B6...: 75 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MQ2...: 70 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.kakaocorp.com/page/_nuxt/bf897f3.js: 50 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 572 KB
572 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.kakaocorp.com/page/_nuxt/295cdd1.js211 KB166 KB (85%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-E3B64CZSR2&cx=c&gtm=4e64h1156 KB110 KB (71%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-E3B64CZSR2&l=dataLayer155 KB75 KB (48%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MQ23PRPS112 KB70 KB (63%)✓3rd
https://www.kakaocorp.com/page/_nuxt/bf897f3.js76 KB50 KB (66%)✓3rd
https://www.kakaocorp.com/page/_nuxt/9960e3c.js74 KB41 KB (56%)✓3rd
https://connect.facebook.net/en_US/fbevents.js97 KB32 KB (33%)✓3rd
https://www.kakaocorp.com/page/_nuxt/6c5b543.js79 KB28 KB (36%)✓3rd
https://t1.kakaocdn.net/kakao_js_sdk/v1/kakao.min.js35 KB—✓3rd
https://t1.daumcdn.net/tiara/js/v1/tiara-1.2.2.min.js7 KB—✓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

F
Page Weight Inventory
Action
89 resources · 12.2 MB · 572 KB savings available
FIX
89 resources · 12.2 MB · 572 KB savings available
Warning::
Page weight 11.2 MB over 1MB target
Got: 12.2 MB Expected: ≤ 1 MB
Info::
~572 KB of savings available
Warning::
88 third-party resources (100% of weight)
Info::
17 resources over 200KB
89 resources · 12.2 MiB · 88 third-party 11.2 MiB over 1MB target
Image 54% · 6.6 MiB
Media 25% · 3.1 MiB
Font 11% · 1.3 MiB
JavaScript 9% · 1.1 MiB
CSS 1% · 79.2 KiB
Document 0% · 29.7 KiB
Other 0% · 18.3 KiB

~572.3 KiB of savings available

Remove unused JavaScript: 572.3 KiB
C
Image Optimization
Action
55 images, 0 KB saveable
REVIEW
55 images, 0 KB saveable
Warning::
https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q10... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q10... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q10... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q10... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
55 images 6.6 MB
0 oversized -0 KB
25 legacy format
4 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

C
JS Execution Cost
Action
1007ms total JS execution
REVIEW
1007ms total JS execution
Info::
https://www.kakaocorp.com/page/_nuxt/b3826af.js: 249ms CPU time
Info::
Unattributable: 235ms CPU time
Info::
https://www.kakaocorp.com/page/_nuxt/5c86d0b.js: 206ms CPU time
Info::
https://www.kakaocorp.com/page/: 162ms CPU time
Info::
https://www.kakaocorp.com/page/_nuxt/295cdd1.js: 102ms CPU time
Warning::
Third-party scripts: 1007ms (100% of total)

Main Thread Breakdown

Script Evaluation 40% Other 29% Style & Layout 16% Script Parsing & Compilation 9%
ScriptTotalScriptingParse/CompileParty
https://www.kakaocorp.com/page/_nuxt/b3826af.js249ms184ms1ms3rd
Unattributable235ms2ms0ms3rd
https://www.kakaocorp.com/page/_nuxt/5c86d0b.js206ms60ms3ms3rd
https://www.kakaocorp.com/page/162ms3ms6ms3rd
https://www.kakaocorp.com/page/_nuxt/295cdd1.js102ms60ms25ms3rd
https://www.kakaocorp.com/page/_nuxt/9960e3c.js53ms41ms10ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
no-cache,must-revalidate
REVIEW
no-cache,must-revalidate
Info::
Cache-Control header is set
Got: no-cache,must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache,must-revalidate

DirectiveValueMeaning
no-cache—Cache but always revalidate first
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
4 fonts (1360 KB)
PASS
4 fonts (1360 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

1360 KB total

Render-blocking

0

of 4

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 7.0 s FCP 4.9 s LCP 7.5 shttps://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall_Bold_OTF.woff2KakaoSmall_Bold_OTF.woff2 https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall_Bold_OTF.woff2 — 303.0 KiB — 47 ms — font-display: swaphttps://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall-Regular-v1.0.woff2KakaoSmall-Regular-v1.0... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall-Regular-v1.0.woff2 — 452.1 KiB — 66 ms — font-display: swaphttps://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoBig-Bold-v1.0.woff2KakaoBig-Bold-v1.0.woff2 https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoBig-Bold-v1.0.woff2 — 306.5 KiB — 78 ms — font-display: swaphttps://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoBig-Regular-v1.0.woff2KakaoBig-Regular-v1.0.w... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoBig-Regular-v1.0.woff2 — 298.2 KiB — 73 ms — font-display: swap
KakaoSmall_Bold_OTF.woff2 woff2 swap
Size 303 KB
Load time 47 ms
Start 3.8 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
KakaoSmall-Regular-v1.0... woff2 swap
Size 452 KB
Load time 66 ms
Start 3.8 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
KakaoBig-Bold-v1.0.woff2 woff2 swap
Size 307 KB
Load time 78 ms
Start 3.8 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
KakaoBig-Regular-v1.0.w... woff2 swap
Size 298 KB
Load time 73 ms
Start 3.8 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~680 KB and ~1360 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
89 requests over 8023ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.9 s LCP 7.5 shttps://kakao.com// https://kakao.com/ — 302 — 201 B — 837 ms — h2https://www.kakaocorp.com/www.kakaocorp.com/ https://www.kakaocorp.com/ — 301 — 128 B — 1.1 s — h2https://www.kakaocorp.com/page/www.kakaocorp.com/page/ https://www.kakaocorp.com/page/ — 200 — 29.4 KiB — 645 ms — h2https://developers.kakao.com/sdk/js/kakao.min.jsdevelopers.kakao.com/sdk/js/kakao.m... https://developers.kakao.com/sdk/js/kakao.min.js — 301 — 139 B — 1.1 s — h2https://t1.daumcdn.net/tiara/js/v1/tiara-1.2.2.min.jst1.daumcdn.net/tiara/js/v1/tiara-1.... https://t1.daumcdn.net/tiara/js/v1/tiara-1.2.2.min.js — 200 — 7.3 KiB — 63 ms — h2https://dkaptcha.kakao.com/dkaptcha/api.jsdkaptcha.kakao.com/dkaptcha/api.js https://dkaptcha.kakao.com/dkaptcha/api.js — 200 — 5.8 KiB — 1.4 s — h2https://www.kakaocorp.com/page/_nuxt/5eb9355.jswww.kakaocorp.com/page/_nuxt/5eb935... https://www.kakaocorp.com/page/_nuxt/5eb9355.js — 200 — 1.6 KiB — 835 ms — h2https://www.kakaocorp.com/page/_nuxt/6c5b543.jswww.kakaocorp.com/page/_nuxt/6c5b54... https://www.kakaocorp.com/page/_nuxt/6c5b543.js — 200 — 79.1 KiB — 1.1 s — h2https://www.kakaocorp.com/page/_nuxt/css/5551ab0.csswww.kakaocorp.com/page/_nuxt/css/55... https://www.kakaocorp.com/page/_nuxt/css/5551ab0.css — 200 — 79.2 KiB — 838 ms — h2https://www.kakaocorp.com/page/_nuxt/295cdd1.jswww.kakaocorp.com/page/_nuxt/295cdd... https://www.kakaocorp.com/page/_nuxt/295cdd1.js — 200 — 210.9 KiB — 1.4 s — h2https://www.kakaocorp.com/page/_nuxt/9960e3c.jswww.kakaocorp.com/page/_nuxt/9960e3... https://www.kakaocorp.com/page/_nuxt/9960e3c.js — 200 — 74.1 KiB — 1.4 s — h2https://t1.kakaocdn.net/kakao_js_sdk/v1/kakao.min.jst1.kakaocdn.net/kakao_js_sdk/v1/kak... https://t1.kakaocdn.net/kakao_js_sdk/v1/kakao.min.js — 200 — 34.5 KiB — 66 ms — h2https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_service_0918.pngt1.kakaocdn.net/thumb/C1120x1400.fw... https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_service_0918.png — 200 — 141.3 KiB — 82 ms — h2https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_ai.pngt1.kakaocdn.net/thumb/C1120x1400.fw... https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_ai.png — 200 — 325.8 KiB — 78 ms — h2https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_people.pngt1.kakaocdn.net/thumb/C1120x1400.fw... https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_people.png — 200 — 174.3 KiB — 1.8 s — h2https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_esg.pngt1.kakaocdn.net/thumb/C1120x1400.fw... https://t1.kakaocdn.net/thumb/C1120x1400.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fmain2025%2Fimg_parellex_esg.png — 200 — 252.5 KiB — 73 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_kakaoTalk.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_kakaoTalk.png — 200 — 15.3 KiB — 25 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_map.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_map.png — 200 — 4.6 KiB — 713 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_channel.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_channel.png — 200 — 11.9 KiB — 45 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_page.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_page.png — 200 — 1.9 KiB — 18 ms — h2data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='674' height='68' …www.w3.org/2000/svg' width='674' he... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='674' height='68' … — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='21' height='21' f…www.w3.org/2000/svg' width='21' hei... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='21' height='21' f… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' f…www.w3.org/2000/svg' width='28' hei... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' f… — 200 — 0 B — 0 ms — datahttps://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_t.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_t.png — 200 — 2.1 KiB — 27 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_pay.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_pay.png — 200 — 5.2 KiB — 47 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_zigzag.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_zigzag.png — 200 — 4.5 KiB — 42 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_melon.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/main2025/service_melon.png — 200 — 4.8 KiB — 43 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall_Bold_OTF.woff2t1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall_Bold_OTF.woff2 — 200 — 303.0 KiB — 47 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall-Regular-v1.0.woff2t1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoSmall-Regular-v1.0.woff2 — 200 — 452.1 KiB — 66 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoBig-Bold-v1.0.woff2t1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/service/fonts/KakaoBig-Bold-v1.0.woff2 — 200 — 306.5 KiB — 78 ms — h2
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https://t1.kakaocdn.net/thumb/C317x178.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fgnb%2Fgnb_dangol.png — 200 — 23.2 KiB — 66 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/category/06c15fc0019400001.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/category/06c15fc0019400001.png — 200 — 4.2 KiB — 21 ms — h2https://t1.kakaocdn.net/thumb/C317x178.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fgnb%2Fgnb_activegreen.pngt1.kakaocdn.net/thumb/C317x178.fweb... https://t1.kakaocdn.net/thumb/C317x178.fwebp.q100/?fname=https%3A%2F%2Ft1.kakaocdn.net%2Fkakaocorp%2Fkakaocorp%2Fservice%2Fgnb%2Fgnb_activegreen.png — 200 — 17.8 KiB — 1.1 s — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/category/b1921311019200001.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/category/b1921311019200001.png — 200 — 6.9 KiB — 31 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/marketing/910a3f90019b00001.jpgt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/marketing/910a3f90019b00001.jpg — 200 — 432.5 KiB — 40 ms — h2https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/marketing/294e9bf1019a00001.pngt1.kakaocdn.net/kakaocorp/kakaocorp... https://t1.kakaocdn.net/kakaocorp/kakaocorp/admin/marketing/294e9bf1019a00001.png — 200 — 729.5 KiB — 71 ms — h2https://stat.tiara.kakaocorp.com/track?d=%7B%22sdk%22%3A%7B%22type%22%3A%22WEB%22%2C%22version%22%3A%221.2.2%22%7D%2C%22env%22%3A%7B%22screen%22%3A%22800X600%22%2C%22tz%22%3A%220%22%2C%22cke%22%3A%22Y%22%2C%22uadata%22%3A%7B%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22147.0.7727.101%22%7D%2C%7B%22brand%22%3A%22Not.A%2FBrand%22%2C%22version%22%3A%228.0.0.0%22%7D%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22macOS%22%2C%22platformVersion%22%3A%2210.15.7%22%7D%7D%2C%22common%22%3A%7B%22session_timeout%22%3A%221800%22%2C%22svcdomain%22%3A%22www.kakaocorp.com%22%2C%22deployment%22%3A%22production%22%2C%22url%22%3A%22https%3A%2F%2Fwww.kakaocorp.com%2Fpage%2F%22%2C%22title%22%3A%22%EC%B9%B4%EC%B9%B4%EC%98%A4%22%2C%22page%22%3A%22Main%22%7D%2C%22etc%22%3A%7B%22client_info%22%3A%7B%22tuid%22%3A%22w-81bXmcvkPD7N_260422054044798%22%2C%22tsid%22%3A%22w-81bXmcvkPD7N_260422054044798%22%2C%22uuid%22%3A%22w-6hwHKKhwGB7w_260422616164526%22%2C%22suid%22%3A%22w-6hwHKKhwGB7w_260422616164526%22%2C%22isuid%22%3A%22w-7GVDoJy1gu5a_260422209676211%22%2C%22client_timestamp%22%3A1776804045762%7D%7D%2C%22action%22%3A%7B%22type%22%3A%22Pageview%22%2C%22kind%22%3A%22%22%7D%2C%22custom_props%22%3A%7B%22pageMode%22%3A%22light%22%7D%7Dstat.tiara.kakaocorp.com/track?d=%7... https://stat.tiara.kakaocorp.com/track?d=%7B%22sdk%22%3A%7B%22type%22%3A%22WEB%22%2C%22version%22%3A%221.2.2%22%7D%2C%22env%22%3A%7B%22screen%22%3A%22800X600%22%2C%22tz%22%3A%220%22%2C%22cke%22%3A%22Y%22%2C%22uadata%22%3A%7B%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22147.0.7727.101%22%7D%2C%7B%22brand%22%3A%22Not.A%2FBrand%22%2C%22version%22%3A%228.0.0.0%22%7D%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22macOS%22%2C%22platformVersion%22%3A%2210.15.7%22%7D%7D%2C%22common%22%3A%7B%22session_timeout%22%3A%221800%22%2C%22svcdomain%22%3A%22www.kakaocorp.com%22%2C%22deployment%22%3A%22production%22%2C%22url%22%3A%22https%3A%2F%2Fwww.kakaocorp.com%2Fpage%2F%22%2C%22title%22%3A%22%EC%B9%B4%EC%B9%B4%EC%98%A4%22%2C%22page%22%3A%22Main%22%7D%2C%22etc%22%3A%7B%22client_info%22%3A%7B%22tuid%22%3A%22w-81bXmcvkPD7N_260422054044798%22%2C%22tsid%22%3A%22w-81bXmcvkPD7N_260422054044798%22%2C%22uuid%22%3A%22w-6hwHKKhwGB7w_260422616164526%22%2C%22suid%22%3A%22w-6hwHKKhwGB7w_260422616164526%22%2C%22isuid%22%3A%22w-7GVDoJy1gu5a_260422209676211%22%2C%22client_timestamp%22%3A1776804045762%7D%7D%2C%22action%22%3A%7B%22type%22%3A%22Pageview%22%2C%22kind%22%3A%22%22%7D%2C%22custom_props%22%3A%7B%22pageMode%22%3A%22light%22%7D%7D — 200 — 1.5 KiB — 864 ms — h2https://www.kakaocorp.com/page/favicon.icowww.kakaocorp.com/page/favicon.ico https://www.kakaocorp.com/page/favicon.ico — 200 — 1.4 KiB — 286 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
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 1007ms · 361KB · ₩23514/mo
www.kakaocorp.com
Other
Costly
Execution 249ms
Transfer 3 KB
Monthly Cost ₩5811/mo
Unattributable
Other
Costly
Execution 235ms
Transfer 0 KB
Monthly Cost ₩5487/mo
www.kakaocorp.com
Other
Costly
Execution 206ms
Transfer 43 KB
Monthly Cost ₩4819/mo
www.kakaocorp.com
Other
Costly
Execution 162ms
Transfer 29 KB
Monthly Cost ₩3770/mo
www.kakaocorp.com
Other
Costly
Execution 102ms
Transfer 211 KB
Unused 85%
Monthly Cost ₩2385/mo
www.kakaocorp.com
Other
Costly
Execution 53ms
Transfer 74 KB
Unused 56%
Monthly Cost ₩1242/mo

These scripts may cost more than they're worth

  • www.kakaocorp.com adds 249ms and costs ~₩5811/month
  • Unattributable adds 235ms and costs ~₩5487/month
  • www.kakaocorp.com adds 206ms and costs ~₩4819/month
  • www.kakaocorp.com adds 162ms and costs ~₩3770/month
  • www.kakaocorp.com adds 102ms and costs ~₩2385/month
  • www.kakaocorp.com adds 53ms and costs ~₩1242/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

www.kakaocorp.com takes 249ms 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 235ms 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.kakaocorp.com takes 206ms 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.kakaocorp.com takes 162ms 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.kakaocorp.com takes 102ms 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

85% of www.kakaocorp.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

www.kakaocorp.com takes 53ms 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

56% of www.kakaocorp.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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