Performance
· 24 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.
2.45 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.13 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
220 ms
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.
3.10 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.
5.67 s
Page Load Progression
923 ms
1.8 s
2.8 s
3.7 s
4.6 s 5.5 s
6.5 s
7.4 sFPage Weight BudgetAction12.8 MB transferred, 499 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 CostAction4513ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.tradingview.com/ | 1478ms | 191ms | 4ms | 3rd |
| https://static.tradingview.com/static/bundles/14041.9a9e08dd2261a49814f5.js | 1317ms | 905ms | 2ms | 3rd |
| Unattributable | 736ms | 15ms | 0ms | 1st |
| https://static.tradingview.com/static/bundles/78312.ea404ad3b43004d1d63d.js | 284ms | 127ms | 4ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610210101/pubads_impl.js?cb=122881802 | 280ms | 90ms | 18ms | 3rd |
| https://static.tradingview.com/static/bundles/base.4fcb6333dfbc8b9e208b.js | 127ms | 118ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YVVRYGL0E0 | 92ms | 72ms | 12ms | 3rd |
| https://static.tradingview.com/static/bundles/52300.676ce07cd81a67dbb800.js | 83ms | 3ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13919399&cx=c>m=4e6al1 | 60ms | 52ms | 8ms | 3rd |
| https://static.tradingview.com/static/bundles/9926.dd0cb97a88888f67ea14.js | 54ms | 3ms | 1ms | 3rd |
DJS BundlesAction156 scripts, 445 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610210101/pubads_impl.js?cb=122881802 | 210 KB | 158 KB (75%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 100 KB | 75 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 (82%) | ✓ | 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 InventoryAction499 resources · 12.8 MB · 445 KB savings availableFIX
~445.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 499 resources | 12.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization116 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 HintsNo optimization neededPASS
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
Network Waterfall499 requests over 5079msINFO
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 | 1478ms | 224 KB | — | €24/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 1317ms | 47 KB | — | €21/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 284ms | 63 KB | 44% | €5/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 280ms | 210 KB | 75% | €4/mo | Costly |
static.tradingview.com static.tradingview.com | Other | 127ms | 3 KB | — | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 92ms | 176 KB | 41% | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 83ms | 13 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 60ms | 144 KB | 46% | €1/mo | Optional |
static.tradingview.com static.tradingview.com | Other | 54ms | 22 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.tradingview.com adds 1478ms and costs ~€24/month
- static.tradingview.com adds 1317ms and costs ~€21/month
- static.tradingview.com adds 284ms and costs ~€5/month
- securepubads.g.doubleclick.net adds 280ms and costs ~€4/month
84% 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 1478ms 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 1317ms 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 284ms 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 280ms 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 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
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