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https://shopeemobile.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
3
PASS
10
INFO
2

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

Mobile Desktop
58
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
76
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

4.09 s

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

5.14 s

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

511 ms

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.

4.09 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.

8.19 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
10 PASS 3 REVIEW 2 FIX
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 (648.1 KiB of 648.2 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
JS Execution Cost
Action
1462ms total JS execution
REVIEW
1462ms total JS execution
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WJZ...: 569ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-QNNE...: 315ms CPU time
Info::
https://shopee.com/: 237ms CPU time
Info::
Unattributable: 227ms CPU time
Info::
https://connect.facebook.net/en_US/fbevents.js: 115ms CPU time
Warning::
Third-party scripts: 1462ms (100% of total)

Main Thread Breakdown

Script Evaluation 58% Other 15% Style & Layout 12% Script Parsing & Compilation 10%
ScriptTotalScriptingParse/CompileParty
https://www.googletagmanager.com/gtm.js?id=GTM-WJZQSJF569ms479ms74ms3rd
https://www.googletagmanager.com/gtag/js?id=G-QNNETX0FQ1&cx=c&gtm=4e64f0&bs=ctrl2315ms268ms43ms3rd
https://shopee.com/237ms9ms2ms3rd
Unattributable227ms6ms0ms3rd
https://connect.facebook.net/en_US/fbevents.js115ms88ms27ms3rd
C
JS Bundles
Action
4 scripts, 157 KB unused
REVIEW
4 scripts, 157 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-QNNE...: 62 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WJZ...: 51 KB unused (27%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://connect.facebook.net/en_US/fbevents.js: 44 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 157 KB
157 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-QNNETX0FQ1&cx=c&gtm=4e64f0&bs=ctrl2152 KB62 KB (41%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WJZQSJF190 KB51 KB (27%)✓3rd
https://connect.facebook.net/en_US/fbevents.js96 KB44 KB (46%)✓3rd
https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/js/index.4b3c4e88.js1 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
648 KB transferred, 28 requests
PASS
648 KB transferred, 28 requests
Info::
Page weighs 1.9 MB (648 KB transferred)
Info::
28 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
648 KB / 2.4 MB budget
648 KB transferred
28 requests
0.13 g CO2 per page load
JavaScript 440.0 KiB 68%
Images 142.8 KiB 22%
CSS 32.9 KiB 5%
Fonts 21.5 KiB 3%
HTML 7.9 KiB 1%
Other 2.0 KiB 0%
Other 566 B 0%
Other 545 B 0%
0 2.4 MB 4.9 MB
Under budget
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
Image Optimization
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 143 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
Font Loading
2 fonts (22 KB)
PASS
2 fonts (22 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

22 KB total

Render-blocking

0

of 2

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 FCP 4.1 s LCP 5.1 shttps://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-regular.276cdb9e.woff2roboto-regular.276cdb9e... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-regular.276cdb9e.woff2 — 10.7 KiB — 10 ms — font-display: swaphttps://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-medium.68ab4917.woff2roboto-medium.68ab4917.... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-medium.68ab4917.woff2 — 10.8 KiB — 9 ms — font-display: swap
roboto-regular.276cdb9e... woff2 swap
Size 11 KB
Load time 10 ms
Start 1.7 s
Risk FOUT — text flashes from fallback to web font
roboto-medium.68ab4917.... woff2 swap
Size 11 KB
Load time 9 ms
Start 1.7 s
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)
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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
—
dns-prefetch
2
prefetch
—

2 resource hints configured

A
Page Weight Inventory
28 resources · 648 KB · 157 KB savings available
PASS
28 resources · 648 KB · 157 KB savings available
Info::
Within 1MB page-weight target
Got: 648 KB
Info::
~157 KB of savings available
Warning::
27 third-party resources (100% of weight)
28 resources · 648.2 KiB · 27 third-party Within 1MB page-weight target
JavaScript 68% · 440.0 KiB
Image 22% · 144.7 KiB
CSS 5% · 32.9 KiB
Font 3% · 21.5 KiB
Document 1% · 8.0 KiB
Other 0% · 1.1 KiB

~157.1 KiB of savings available

Remove unused JavaScript: 157.1 KiB
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
28 requests over 2287ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 4.1 s LCP 5.1 shttps://shopeemobile.com// https://shopeemobile.com/ — 307 — 99 B — 779 ms — h2https://shopee.com/shopee.com/ https://shopee.com/ — 200 — 7.9 KiB — 779 ms — h2https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/js/index.4b3c4e88.jsdeo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/js/index.4b3c4e88.js — 200 — 1.2 KiB — 65 ms — h2https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/js/index.37d69f29.cssdeo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/js/index.37d69f29.css — 200 — 32.9 KiB — 68 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-WJZQSJFwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-WJZQSJF — 200 — 190.1 KiB — 252 ms — h2https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/img/banner@2x.c08a6eaa.pngdeo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/img/banner@2x.c08a6eaa.png — 200 — 131.4 KiB — 8 ms — h2data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 1 ms — datadata:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4KPCEtLSBHZW5lcmF0b3I6I…data:image/svg+xml;base64,PD94bWwgd... data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4KPCEtLSBHZW5lcmF0b3I6I… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datahttps://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/c3e8b0d9c5ac504a.svgdeo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/c3e8b0d9c5ac504a.svg — 200 — 11.0 KiB — 6 ms — h2data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTYiIGhlaWdodD0iOTYiIHZpZXdCb3g9IjAgMCA5NiA5NiIgZmlsbD0ib… — 200 — 0 B — 0 ms — datahttps://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-regular.276cdb9e.woff2deo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-regular.276cdb9e.woff2 — 200 — 10.7 KiB — 10 ms — h2https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-medium.68ab4917.woff2deo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/static/font/roboto-medium.68ab4917.woff2 — 200 — 10.8 KiB — 9 ms — h2https://www.googletagmanager.com/gtag/js?id=G-QNNETX0FQ1&cx=c&gtm=4e64f0&bs=ctrl2www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-QNNETX0FQ1&cx=c&gtm=4e64f0&bs=ctrl2 — 200 — 152.3 KiB — 101 ms — h2https://connect.facebook.net/en_US/fbevents.jsconnect.facebook.net/en_US/fbevents... https://connect.facebook.net/en_US/fbevents.js — 200 — 96.4 KiB — 106 ms — h3https://www.google.com/ccm/collect?rcb=15&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fshopee.com%2F&scrsrc=www.googletagmanager.com&rnd=1162478128.1776363557&dt=Leading%20Online%20Shopping%20Platform%20In%20Southeast%20Asia%20%26%20Taiwan%20%7C%20Shopee&auid=1431164945.1776363557&navt=n&npa=1&ep.ads_data_redaction=0&gtm=45He64f0v77691473za200zd77691473xea&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616986~115938466~115938468~117266400~118128922~118289195&apve=1&apvf=f&apvc=1&tft=1776363556966&tfd=1958www.google.com/ccm/collect?rcb=15&f... https://www.google.com/ccm/collect?rcb=15&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fshopee.com%2F&scrsrc=www.googletagmanager.com&rnd=1162478128.1776363557&dt=Leading%20Online%20Shopping%20Platform%20In%20Southeast%20Asia%20%26%20Taiwan%20%7C%20Shopee&auid=1431164945.1776363557&navt=n&npa=1&ep.ads_data_redaction=0&gtm=45He64f0v77691473za200zd77691473xea&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616986~115938466~115938468~117266400~118128922~118289195&apve=1&apvf=f&apvc=1&tft=1776363556966&tfd=1958 — 200 — 21 B — 66 ms — h3https://region1.analytics.google.com/g/collect?v=2&tid=G-QNNETX0FQ1&gtm=45je64f0v893834207z877691473za20gzb77691473zd77691473&_p=1776363556580&_gaz=1&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&_eu=AAAAAGA&are=1&cid=1038087607.1776363557&frm=0&pscdl=noapi&rcb=9&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.55%7CNot.A%252FBrand%3B8.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115616985~115938466~115938468~117266400~118128923~118289195&sid=1776363557&sct=1&seg=0&dl=https%3A%2F%2Fshopee.com%2F&dt=Leading%20Online%20Shopping%20Platform%20In%20Southeast%20Asia%20%26%20Taiwan%20%7C%20Shopee&en=page_view&_fv=1&_nsi=1&_ss=1&ep.useAmpClientId=true&ep.location=https%3A%2F%2Fshopee.com%2F&ep.ai_overview_text=undefined&tfd=2099region1.analytics.google.com/g/coll... https://region1.analytics.google.com/g/collect?v=2&tid=G-QNNETX0FQ1&gtm=45je64f0v893834207z877691473za20gzb77691473zd77691473&_p=1776363556580&_gaz=1&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&_eu=AAAAAGA&are=1&cid=1038087607.1776363557&frm=0&pscdl=noapi&rcb=9&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.55%7CNot.A%252FBrand%3B8.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115616985~115938466~115938468~117266400~118128923~118289195&sid=1776363557&sct=1&seg=0&dl=https%3A%2F%2Fshopee.com%2F&dt=Leading%20Online%20Shopping%20Platform%20In%20Southeast%20Asia%20%26%20Taiwan%20%7C%20Shopee&en=page_view&_fv=1&_nsi=1&_ss=1&ep.useAmpClientId=true&ep.location=https%3A%2F%2Fshopee.com%2F&ep.ai_overview_text=undefined&tfd=2099 — 204 — 545 B — 87 ms — h2https://stats.g.doubleclick.net/g/collect?v=2&tid=G-QNNETX0FQ1&cid=1038087607.1776363557&gtm=45je64f0v893834207z877691473za20gzb77691473zd77691473&rcb=9&aip=1&dma=1&dma_cps=a&gcd=13l3lPl2l1l1&npa=1&frm=0&tag_exp=0~115616985~115938466~115938468~117266400~118128923~118289195stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-QNNETX0FQ1&cid=1038087607.1776363557&gtm=45je64f0v893834207z877691473za20gzb77691473zd77691473&rcb=9&aip=1&dma=1&dma_cps=a&gcd=13l3lPl2l1l1&npa=1&frm=0&tag_exp=0~115616985~115938466~115938468~117266400~118128923~118289195 — 204 — 545 B — 121 ms — h2https://www.google.es/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&tid=G-QNNETX0FQ1&cid=1038087607.1776363557&gtm=45je64f0v893834207z877691473za20gzb77691473zd77691473&rcb=9&aip=1&dma=1&dma_cps=a&gcd=13l3lPl2l1l1&npa=1&frm=0&tag_exp=0~115616985~115938466~115938468~117266400~118128923~118289195&z=241911265www.google.es/ads/ga-audiences?v=1&... https://www.google.es/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&tid=G-QNNETX0FQ1&cid=1038087607.1776363557&gtm=45je64f0v893834207z877691473za20gzb77691473zd77691473&rcb=9&aip=1&dma=1&dma_cps=a&gcd=13l3lPl2l1l1&npa=1&frm=0&tag_exp=0~115616985~115938466~115938468~117266400~118128923~118289195&z=241911265 — 200 — 408 B — 164 ms — h2https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/favicon.icodeo.shopeemobile.com/shopee/shopee-... https://deo.shopeemobile.com/shopee/shopee-shopeecom-live-sg/favicon.ico — 200 — 1.9 KiB — 3 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 1462ms · 447KB · S$25/mo
Google Tag Manager
Tag Manager
Costly
Execution 569ms
Transfer 190 KB
Unused 27%
Monthly Cost S$10/mo
Google Tag Manager
Tag Manager
Costly
Execution 315ms
Transfer 152 KB
Unused 41%
Monthly Cost S$5/mo
shopee.com
Other
Costly
Execution 237ms
Transfer 8 KB
Monthly Cost S$4/mo
Unattributable
Other
Costly
Execution 227ms
Transfer 0 KB
Monthly Cost S$4/mo
Facebook Pixel
Advertising
Optional
Execution 115ms
Transfer 96 KB
Unused 46%
Monthly Cost S$2/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 569ms and costs ~S$10/month
  • Google Tag Manager adds 315ms and costs ~S$5/month
  • shopee.com adds 237ms and costs ~S$4/month
  • Unattributable adds 227ms and costs ~S$4/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

Google Tag Manager takes 569ms 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

Google Tag Manager takes 315ms 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

shopee.com takes 237ms 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 227ms 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

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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