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.
2.91 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.91 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
509 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.
2.91 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.
6.73 s
Page Load Progression
375 ms
750 ms
1.1 s
1.5 s 1.9 s 2.2 s 2.6 s 3.0 sDThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BJS Execution Cost889ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.pscp.tv/univ/main-17706232d90b51cd120d.js | 554ms | 416ms | 126ms | 3rd |
| https://assets.pscp.tv/univ/chunk-discover-view-9d5f693a1a58d4b7.js | 119ms | 113ms | 3ms | 3rd |
| Unattributable | 117ms | 5ms | 0ms | 3rd |
| https://www.pscp.tv/ | 100ms | 7ms | 1ms | 3rd |
CJS BundlesAction7 scripts, 196 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.pscp.tv/univ/main-17706232d90b51cd120d.js | 490 KB | 196 KB (40%) | ✓ | 3rd |
| https://assets.pscp.tv/resources/bugsnag-4.min.js | 11 KB | — | ✓ | 3rd |
| https://assets.pscp.tv/univ/chunk-translations-en-2b77cae61d3a37d3.js | 27 KB | — | ✓ | 3rd |
| https://assets.pscp.tv/univ/chunk-react-intl-locale-en-af79742f139cd487.js | 1 KB | — | ✓ | 3rd |
| https://www.google-analytics.com/analytics.js | 21 KB | — | ✓ | 3rd |
| https://assets.pscp.tv/univ/chunk-root-view-495d357c6aa1bccb.js | 9 KB | — | ✓ | 3rd |
| https://assets.pscp.tv/univ/chunk-discover-view-9d5f693a1a58d4b7.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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Page Weight Budget708 KB transferred, 18 requestsPASS
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
A+Text CompressionAll text resources are compressedPASS
AImage Optimization2 images, 0 KB saveablePASS
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
A+Font Loading2 fonts (36 KB)PASS
Web fonts
2
36 KB total
Render-blocking
0
of 2
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
APage Weight Inventory18 resources · 708 KB · 196 KB savings availablePASS
~195.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 18 resources | 708.0 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall18 requests over 2340msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
assets.pscp.tv assets.pscp.tv | Other | 554ms | 490 KB | 40% | $7/mo | Costly |
assets.pscp.tv assets.pscp.tv | Other | 119ms | 8 KB | — | $2/mo | Optional |
Unattributable Unattributable | Other | 117ms | 0 KB | — | $2/mo | Optional |
www.pscp.tv www.pscp.tv | Other | 100ms | 9 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- assets.pscp.tv adds 554ms and costs ~$7/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
assets.pscp.tv takes 554ms 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