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.
4.95 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.98 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.39 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.006
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.03 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.
21.40 s
Page Load Progression
FPage Weight BudgetAction8.0 MB transferred, 463 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
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
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 CostAction18344ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.tradingview.com/ | 5201ms | 331ms | 22ms | 3rd |
| https://static.tradingview.com/static/bundles/41966.06597657fc835f300662.js | 4660ms | 934ms | 14ms | 3rd |
| Unattributable | 2667ms | 37ms | 0ms | 3rd |
| https://static.tradingview.com/static/bundles/main_page.9f3d3122f5dfbd8e53ed.js | 1509ms | 1136ms | 10ms | 3rd |
| https://static.tradingview.com/static/bundles/29365.438fd979971c174d6b81.js | 1028ms | 594ms | 14ms | 3rd |
| https://static.tradingview.com/static/bundles/base.ab928edb76c0f6dab3d9.js | 615ms | 578ms | 0ms | 3rd |
| https://static.tradingview.com/static/bundles/57028.f96062f1ea812ace584c.js | 519ms | 10ms | 2ms | 3rd |
| https://static.tradingview.com/static/bundles/60380.b4abe47e6ad1ca4864fe.js | 303ms | 214ms | 5ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YVVRYGL0E0 | 287ms | 210ms | 41ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604130101/pubads_impl.js | 207ms | 119ms | 45ms | 3rd |
Showing top 10 of 24 scripts
DJS BundlesAction130 scripts, 429 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604130101/pubads_impl.js | 188 KB | 144 KB (77%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/toast-layer.2803415bcfcb3ab3cde1.js | 78 KB | 77 KB (99%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 96 KB | 71 KB (74%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YVVRYGL0E0 | 157 KB | 65 KB (42%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/41966.06597657fc835f300662.js | 60 KB | 25 KB (43%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/99827.1a1981536d95e5aad54c.js | 35 KB | 24 KB (72%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/26731.1752bf88905d9db6ef4e.js | 36 KB | 22 KB (61%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/89019.fbcfc31d8eb19d75690d.js | 10 KB | — | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/track-ui-events.e1c7e9639e2b5d921b02.js | 6 KB | — | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/en.11788.fbc54db47d6ca20d59fb.js | 8 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 InventoryAction463 resources · 8.0 MB · 429 KB savings availableFIX
~428.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 463 resources | 8.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization112 images, 0 KB saveableREVIEW
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 Loading1 fonts (19 KB)PASS
Web fonts
1
19 KB total
Render-blocking
0
of 1
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints46 hints, 0 missing preconnectsPASS
Current Resource Hints
46 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall463 requests over 4513msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.tradingview.com www.tradingview.com | Other | 5201ms | 219 KB | — | €83/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 4660ms | 60 KB | 43% | €75/mo | Costly |
Unattributable Unattributable | Other | 2667ms | 0 KB | — | €43/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 1509ms | 46 KB | — | €24/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 1028ms | 46 KB | — | €16/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 615ms | 2 KB | — | €10/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 519ms | 10 KB | — | €8/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 303ms | 19 KB | — | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 287ms | 157 KB | 42% | €5/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 207ms | 188 KB | 77% | €3/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 197ms | 11 KB | — | €3/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 182ms | 26 KB | — | €3/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 152ms | 6 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 100ms | 16 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 96ms | 27 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 85ms | 12 KB | — | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 82ms | 34 KB | — | €1/mo | Optional |
accounts.google.com accounts.google.com | Other | 78ms | 96 KB | 74% | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 76ms | 5 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 74ms | 78 KB | 99% | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 61ms | 80 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 59ms | 10 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 57ms | 35 KB | 72% | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 50ms | 16 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.tradingview.com adds 5201ms and costs ~€83/month
- static.tradingview.com adds 4660ms and costs ~€75/month
- Unattributable adds 2667ms and costs ~€43/month
- static.tradingview.com adds 1509ms and costs ~€24/month
- static.tradingview.com adds 1028ms and costs ~€16/month
- static.tradingview.com adds 615ms and costs ~€10/month
- static.tradingview.com adds 519ms and costs ~€8/month
- static.tradingview.com adds 303ms and costs ~€5/month
- Google Tag Manager adds 287ms and costs ~€5/month
- securepubads.g.doubleclick.net adds 207ms and costs ~€3/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.tradingview.com takes 5201ms 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
static.tradingview.com takes 4660ms 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 2667ms 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
static.tradingview.com takes 1509ms 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
static.tradingview.com takes 1028ms 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
static.tradingview.com takes 615ms 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
static.tradingview.com takes 519ms 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
static.tradingview.com takes 303ms 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 287ms 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
securepubads.g.doubleclick.net takes 207ms 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
77% of securepubads.g.doubleclick.net'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
74% of accounts.google.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
99% of static.tradingview.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
72% of static.tradingview.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