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.
1.13 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.66 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
691 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.005
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.03 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.
16.96 s
Page Load Progression
979 ms
2.0 s
2.9 s
3.9 s
4.9 s
5.9 s
6.9 s
7.8 sFPage Weight BudgetAction29.9 MB transferred, 190 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 CostAction4011ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.wondershare.com/ | 1066ms | 52ms | 7ms | 3rd |
| Unattributable | 881ms | 86ms | 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=1776810677026 | 447ms | 353ms | 0ms | 3rd |
| https://crm-static.wondershare.cc/crm-chatbot/static/js/index-gHu39RzJ.js | 336ms | 307ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-57FR6ZG | 195ms | 160ms | 28ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 160ms | 145ms | 7ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WRMX62N>m=4e64h1 | 147ms | 118ms | 23ms | 3rd |
| https://cdn.consentmanager.net/delivery/customdata/bV8xLndfODYzMjEucl9HRFBSLmxfZW4uZF8zMDI0Ni54XzEzMi52LnAudF8zMDI0Ni54dF85NQ.js | 138ms | 133ms | 3ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-24WTSJBD5B&cx=c>m=4e64h1 | 126ms | 97ms | 28ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-578746000&cx=c>m=4e64h1 | 112ms | 89ms | 18ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction62 scripts, 927 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://msg.wondershare.cc/CRM/AI-chatbot/aliyun-oss-sdk.js | 334 KB | 191 KB (57%) | ✗ | 3rd |
| https://crm-static.wondershare.cc/crm-chatbot/static/js/index-gHu39RzJ.js | 293 KB | 166 KB (57%) | ✓ | 3rd |
| 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 | 166 KB | 66 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-608420035&cx=c>m=4e64h1 | 137 KB | 64 KB (46%) | ✓ | 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://crm-static.wondershare.cc/chatbot/latest/assets/web_sdk.js | 54 KB | 39 KB (72%) | ✗ | 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 InventoryAction190 resources · 29.9 MB · 927 KB savings availableFIX
~926.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 190 resources | 29.9 MiB | ||||||
CImage OptimizationAction65 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.
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 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
- Convert to woff2 for ~30% smaller file size
- 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
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
AHTTP Cachingmax-age=5184000 (8 weeks)PASS
max-age=5184000
| Directive | Value | Meaning |
|---|---|---|
| max-age | 5184000 | Cache for 8 weeks |
Network Waterfall190 requests over 5650msINFO
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 | 1066ms | 36 KB | — | ¥53/mo | Costly |
Unattributable Unattributable | Other | 881ms | 0 KB | — | ¥43/mo | Costly |
delivery.consentmanager.net delivery.consentmanager.net | Other | 447ms | 3 KB | — | ¥22/mo | Costly |
crm-static.wondershare.cc crm-static.wondershare.cc | Other | 336ms | 293 KB | 57% | ¥17/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 195ms | 171 KB | 41% | ¥10/mo | Optional |
script.crazyegg.com script.crazyegg.com | Other | 160ms | 55 KB | 50% | ¥8/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 147ms | 166 KB | 40% | ¥7/mo | Optional |
cdn.consentmanager.net cdn.consentmanager.net | Other | 138ms | 13 KB | — | ¥7/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 126ms | 175 KB | 33% | ¥6/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 112ms | 137 KB | 49% | ¥6/mo | Optional |
Hotjar script.hotjar.com | Session Replay | 76ms | 57 KB | 67% | ¥4/mo | Optional |
cdn.consentmanager.net cdn.consentmanager.net | Other | 76ms | 5 KB | — | ¥4/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 137 KB | 49% | ¥4/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 72ms | 137 KB | 46% | ¥4/mo | Optional |
neveragain.allstatics.com neveragain.allstatics.com | Other | 52ms | 33 KB | — | ¥3/mo | Optional |
cdn.consentmanager.net cdn.consentmanager.net | Other | 51ms | 101 KB | 40% | ¥3/mo | Optional |
These scripts may cost more than they're worth
- www.wondershare.com adds 1066ms and costs ~¥53/month
- Unattributable adds 881ms and costs ~¥43/month
- delivery.consentmanager.net adds 447ms and costs ~¥22/month
- crm-static.wondershare.cc adds 336ms and costs ~¥17/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 1066ms 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 881ms 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 447ms 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
crm-static.wondershare.cc takes 336ms 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
57% of crm-static.wondershare.cc'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
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