Performance
· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.20 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.40 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.59 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.260
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.02 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.
6.41 s
Page Load Progression
DPage Weight BudgetAction2.6 MB transferred, 233 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
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.
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.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction94% third-party, 0 ms blockingFIX
FJS Execution CostAction6061ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/assets/entry-modules.0e48ae7de7b4bcfe.2023.js | 2483ms | 2335ms | 15ms | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/assets/sfu-latest.1b17eeecc1c6cc92.2023.js | 1705ms | 1588ms | 19ms | 3rd |
| https://shopee.com.br/ | 615ms | 60ms | 17ms | 1st |
| Unattributable | 449ms | 32ms | 0ms | 3rd |
| https://deo.shopeemobile.com/shopee/modules-federation/live/0/shopee__web_enhance_sap/2.40.46.js | 304ms | 296ms | 0ms | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/assets/bundle.6e0f816ad3da84fb.2023.js | 246ms | 202ms | 40ms | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/assets/9392.97e8cf470bae32d0.2023.js | 189ms | 186ms | 1ms | 3rd |
| https://deo.shopeemobile.com/shopee/modules-federation/live/0/react-dom/18.3.1.js | 72ms | 39ms | 0ms | 3rd |
DJS BundlesAction90 scripts, 453 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/homepagefe/pcmall-homepagefe.c7fb6c7815308804d9a1.2023.js | 145 KB | 85 KB (59%) | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/assets/entry-modules.0e48ae7de7b4bcfe.2023.js | 119 KB | 83 KB (70%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 96 KB | 80 KB (84%) | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/modules-federation/live/0/react-dom/18.3.1.js | 110 KB | 64 KB (59%) | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/assets/bundle.6e0f816ad3da84fb.2023.js | 175 KB | 64 KB (37%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/bundle/sdk.js/ | 78 KB | 50 KB (64%) | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/dd/223.920d5b4b1b98d7efd138.2023.js | 35 KB | 27 KB (78%) | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/flashsale/258.8ac98455ee3ad9f61712.2023.js | 14 KB | — | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/shopee-pcmall-live-sg/flashsale/pcmall-flashsale-entry.3e930ec2f6fb5e179164.2023.js | 4 KB | — | ✓ | 3rd |
| https://deo.shopeemobile.com/shopee/modules-federation/live/0/shopee__tracking-hoc/0.0.0-snapshot-20260127094600.js | 6 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction233 resources · 2.6 MB · 453 KB savings availableFIX
~452.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 233 resources | 2.6 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
CImage OptimizationAction43 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (353 KB)PASS
Web fonts
4
353 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- 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 ~106 KB and ~212 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall233 requests over 9768msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
deo.shopeemobile.com deo.shopeemobile.com | Other | 2483ms | 119 KB | 70% | R$31/mo | Costly |
deo.shopeemobile.com deo.shopeemobile.com | Other | 1705ms | 141 KB | — | R$21/mo | Costly |
Unattributable Unattributable | Other | 449ms | 0 KB | — | R$6/mo | Costly |
deo.shopeemobile.com deo.shopeemobile.com | Other | 304ms | 145 KB | — | R$4/mo | Costly |
deo.shopeemobile.com deo.shopeemobile.com | Other | 246ms | 175 KB | 37% | R$3/mo | Costly |
deo.shopeemobile.com deo.shopeemobile.com | Other | 189ms | 1 KB | — | R$2/mo | Optional |
deo.shopeemobile.com deo.shopeemobile.com | Other | 72ms | 110 KB | 59% | R$1/mo | Optional |
These scripts may cost more than they're worth
- deo.shopeemobile.com adds 2483ms and costs ~R$31/month
- deo.shopeemobile.com adds 1705ms and costs ~R$21/month
- Unattributable adds 449ms and costs ~R$6/month
- deo.shopeemobile.com adds 304ms and costs ~R$4/month
- deo.shopeemobile.com adds 246ms and costs ~R$3/month
90% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
deo.shopeemobile.com takes 2483ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
70% of deo.shopeemobile.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
deo.shopeemobile.com takes 1705ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 449ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
deo.shopeemobile.com takes 304ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
deo.shopeemobile.com takes 246ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
59% of deo.shopeemobile.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev