Performance
· 28 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.
12.43 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
13.94 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.31 s
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.
12.43 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.
26.06 s
Page Load Progression
FPage Weight BudgetAction12.8 MB transferred, 495 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 CostAction18392ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.tradingview.com/ | 5902ms | 751ms | 26ms | 3rd |
| https://static.tradingview.com/static/bundles/14041.9a9e08dd2261a49814f5.js | 3995ms | 3133ms | 10ms | 3rd |
| Unattributable | 3512ms | 94ms | 0ms | 1st |
| https://static.tradingview.com/static/bundles/78312.ea404ad3b43004d1d63d.js | 958ms | 440ms | 18ms | 3rd |
| https://static.tradingview.com/static/bundles/base.4fcb6333dfbc8b9e208b.js | 772ms | 716ms | 1ms | 3rd |
| https://securepubads.g.doubleclick.net/tag/js/gpt.js | 636ms | 138ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YVVRYGL0E0 | 583ms | 444ms | 63ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610220101/pubads_impl.js?cb=122881803 | 343ms | 166ms | 56ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13919399&cx=c>m=4e6al1 | 221ms | 182ms | 37ms | 3rd |
| https://static.tradingview.com/static/bundles/main_page.f667e8933cb3674323fd.js | 174ms | 161ms | 13ms | 3rd |
Showing top 10 of 23 scripts
DJS BundlesAction156 scripts, 447 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610220101/pubads_impl.js?cb=122881803 | 210 KB | 160 KB (76%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 100 KB | 74 KB (75%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YVVRYGL0E0 | 176 KB | 72 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13919399&cx=c>m=4e6al1 | 144 KB | 66 KB (46%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/78312.ea404ad3b43004d1d63d.js | 63 KB | 27 KB (44%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/91214.e6a6f0b562d52394ef32.js | 48 KB | 26 KB (54%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/alerts-notifications.e991ab70869e5b7a8a10.js | 26 KB | 21 KB (81%) | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/en.13235.8694b058d1a9e129d8f7.js | 1 KB | — | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/99790.23ac84866fe4e338589b.js | 11 KB | — | ✓ | 3rd |
| https://static.tradingview.com/static/bundles/en.84355.1070ba135c1b9e2dfd92.js | 1 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 InventoryAction495 resources · 12.8 MB · 447 KB savings availableFIX
~446.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 495 resources | 12.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization109 images, 0 KB saveableREVIEW
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
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 Hints86 hints, 0 missing preconnectsPASS
Current Resource Hints
86 resource hints configured
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://static.tradingview.com/static/bundles/99790.23ac84866fe4e338589b.js (preload+preload), https://static.tradingview.com/static/bundles/83215.f30ab8b79dfa9b5c1425.js (preload+preload), https://static.tradingview.com/static/bundles/12209.d26549158783e3ac3cde.js (preload+preload).
Performance issues directly impact user engagement and conversion rates.
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Asset CompressionAll 2 asset hosts use brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall495 requests over 5168msINFO
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 | 5902ms | 224 KB | — | €94/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 3995ms | 47 KB | — | €64/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 958ms | 63 KB | 44% | €15/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 772ms | 3 KB | — | €12/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 636ms | 38 KB | — | €10/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 583ms | 176 KB | 41% | €9/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 343ms | 210 KB | 76% | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 221ms | 144 KB | 46% | €4/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 174ms | 39 KB | — | €3/mo | Optional |
accounts.google.com accounts.google.com | Other | 149ms | 100 KB | 75% | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 139ms | 3 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 133ms | 13 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 129ms | 10 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 106ms | 10 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 102ms | 22 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 98ms | 7 KB | — | €2/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 89ms | 14 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 82ms | 11 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 75ms | 5 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 70ms | 79 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 64ms | 1 KB | — | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 60ms | 14 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.tradingview.com adds 5902ms and costs ~€94/month
- static.tradingview.com adds 3995ms and costs ~€64/month
- static.tradingview.com adds 958ms and costs ~€15/month
- static.tradingview.com adds 772ms and costs ~€12/month
- securepubads.g.doubleclick.net adds 636ms and costs ~€10/month
- Google Tag Manager adds 583ms and costs ~€9/month
- securepubads.g.doubleclick.net adds 343ms and costs ~€5/month
- Google Tag Manager adds 221ms and costs ~€4/month
81% 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 5902ms 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 3995ms 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 958ms 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 772ms 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 636ms 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 583ms 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 343ms 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
76% 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
Google Tag Manager takes 221ms 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
75% 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-25 — 2026-10-22)
LCP (p75)
1535 ms
90% good
INP (p75)
168 ms
79% good
CLS (p75)
0.000
96% good
FCP (p75)
1440 ms
TTFB (p75)
473 ms
Image Optimization200 images, 0 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
200
Total Size
0 KB