Performance
· 17 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.
3.02 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.87 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4.00 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.54 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.
90.85 s
Page Load Progression
FPage Weight BudgetAction29.0 MB transferred, 161 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
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.
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 ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction13758ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.wondershare.com/ | 3782ms | 209ms | 23ms | 3rd |
| Unattributable | 2641ms | 79ms | 0ms | 3rd |
| https://delivery.consentmanager.net/delivery/cmp.php?id=86321&h=https%3A%2F%2Fwww.wondershare.com%2F&__cmpfcc=1&l=en&ls=EN_EN_EN&lp=EN&o=1776810650776 | 1347ms | 1159ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-57FR6ZG | 624ms | 499ms | 116ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 620ms | 565ms | 24ms | 3rd |
| https://cdn.consentmanager.net/delivery/customdata/bV8xLndfODYzMjEucl9HRFBSLmxfZW4uZF8zMDI0Ni54XzEzMi52LnAudF8zMDI0Ni54dF85NQ.js | 605ms | 589ms | 9ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WRMX62N>m=4e64h1 | 536ms | 396ms | 92ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-24WTSJBD5B&cx=c>m=4e64h1 | 502ms | 355ms | 142ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-578746000&cx=c>m=4e64h1 | 364ms | 294ms | 65ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-608420035&cx=c>m=4e64h1 | 328ms | 256ms | 69ms | 3rd |
Showing top 10 of 26 scripts
FJS BundlesAction48 scripts, 534 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-57FR6ZG | 171 KB | 70 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-578746000&cx=c>m=4e64h1 | 137 KB | 67 KB (49%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-1004581587&cx=c>m=4e64h1 | 137 KB | 67 KB (49%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WRMX62N>m=4e64h1 | 167 KB | 67 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-608420035&cx=c>m=4e64h1 | 137 KB | 64 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-24WTSJBD5B&cx=c>m=4e64h1 | 175 KB | 58 KB (33%) | ✓ | 3rd |
| https://cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-21 | 101 KB | 40 KB (40%) | ✓ | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 57 KB | 38 KB (67%) | ✓ | 3rd |
| https://neveragain.allstatics.com/2019/assets/vendor/wsc-vendor.js | 56 KB | 36 KB (64%) | ✓ | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 55 KB | 27 KB (50%) | ✓ | 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 InventoryAction161 resources · 29.0 MB · 534 KB savings availableFIX
~534.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 161 resources | 29.0 MiB | ||||||
CImage OptimizationAction67 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
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
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.
Performance issues directly impact user engagement and conversion rates.
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 Loading7 fonts (485 KB)PASS
Web fonts
7
485 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- 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 ~265 KB and ~530 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=5184000 (8 weeks)PASS
max-age=5184000
| Directive | Value | Meaning |
|---|---|---|
| max-age | 5184000 | Cache for 8 weeks |
Network Waterfall161 requests over 4723msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.wondershare.com www.wondershare.com | Other | 3782ms | 36 KB | — | ¥187/mo | Costly |
Unattributable Unattributable | Other | 2641ms | 0 KB | — | ¥130/mo | Costly |
delivery.consentmanager.net delivery.consentmanager.net | Other | 1347ms | 3 KB | — | ¥66/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 624ms | 171 KB | 41% | ¥31/mo | Costly |
script.crazyegg.com script.crazyegg.com | Other | 620ms | 55 KB | 50% | ¥31/mo | Costly |
cdn.consentmanager.net cdn.consentmanager.net | Other | 605ms | 13 KB | — | ¥30/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 536ms | 167 KB | 40% | ¥26/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 502ms | 175 KB | 33% | ¥25/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 364ms | 137 KB | 49% | ¥18/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 328ms | 137 KB | 47% | ¥16/mo | Costly |
Hotjar script.hotjar.com | Session Replay | 310ms | 57 KB | 67% | ¥15/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 293ms | 137 KB | 49% | ¥14/mo | Costly |
cdn.consentmanager.net cdn.consentmanager.net | Other | 243ms | 5 KB | — | ¥12/mo | Costly |
neveragain.allstatics.com neveragain.allstatics.com | Other | 188ms | 8 KB | — | ¥9/mo | Optional |
neveragain.allstatics.com neveragain.allstatics.com | Other | 187ms | 33 KB | — | ¥9/mo | Optional |
neveragain.allstatics.com neveragain.allstatics.com | Other | 161ms | 56 KB | 64% | ¥8/mo | Optional |
dc-static.wondershare.cc dc-static.wondershare.cc | Other | 146ms | 23 KB | — | ¥7/mo | Optional |
cdn.consentmanager.net cdn.consentmanager.net | Other | 139ms | 101 KB | 40% | ¥7/mo | Optional |
dc-static.wondershare.cc dc-static.wondershare.cc | Other | 133ms | 31 KB | — | ¥7/mo | Optional |
msg.wondershare.cc msg.wondershare.cc | Other | 113ms | 5 KB | — | ¥6/mo | Optional |
app.partnerboost.com app.partnerboost.com | Other | 111ms | 10 KB | — | ¥5/mo | Optional |
neveragain.allstatics.com neveragain.allstatics.com | Other | 100ms | 9 KB | — | ¥5/mo | Optional |
script.crazyegg.com script.crazyegg.com | Other | 96ms | 23 KB | — | ¥5/mo | Optional |
Google Ads Conversion www.googleadservices.com | Advertising | 78ms | 24 KB | — | ¥4/mo | Optional |
dc-static.wondershare.cc dc-static.wondershare.cc | Other | 55ms | 16 KB | — | ¥3/mo | Optional |
images.wondershare.com images.wondershare.com | Other | 54ms | 16 KB | — | ¥3/mo | Optional |
These scripts may cost more than they're worth
- www.wondershare.com adds 3782ms and costs ~¥187/month
- Unattributable adds 2641ms and costs ~¥130/month
- delivery.consentmanager.net adds 1347ms and costs ~¥66/month
- Google Tag Manager adds 624ms and costs ~¥31/month
- script.crazyegg.com adds 620ms and costs ~¥31/month
- cdn.consentmanager.net adds 605ms and costs ~¥30/month
- Google Tag Manager adds 536ms and costs ~¥26/month
- Google Tag Manager adds 502ms and costs ~¥25/month
- Google Tag Manager adds 364ms and costs ~¥18/month
- Google Tag Manager adds 328ms and costs ~¥16/month
- Hotjar adds 310ms and costs ~¥15/month
- Google Tag Manager adds 293ms and costs ~¥14/month
- cdn.consentmanager.net adds 243ms and costs ~¥12/month
100% 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
www.wondershare.com takes 3782ms 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 2641ms 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
delivery.consentmanager.net takes 1347ms 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
Google Tag Manager takes 624ms 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
script.crazyegg.com takes 620ms 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
cdn.consentmanager.net takes 605ms 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
Google Tag Manager takes 536ms 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
Google Tag Manager takes 502ms 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
Google Tag Manager takes 364ms 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
Google Tag Manager takes 328ms 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
Hotjar takes 310ms 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
67% of Hotjar'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
Google Tag Manager takes 293ms 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
cdn.consentmanager.net takes 243ms 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
64% of neveragain.allstatics.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