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.
8.26 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.48 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.92 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.
9.20 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.
20.72 s
Page Load Progression
DPage Weight BudgetAction2.6 MB transferred, 200 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
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 ImpactAction94% third-party, 0 ms blockingFIX
FJS Execution CostAction6502ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.chapturist.com/assets/corejs-75349.9e240b24a5ffbb27.js | 1746ms | 1549ms | 5ms | 3rd |
| https://assets.chapturist.com/assets/bootstrap.1491271f6d9ef366.js | 1228ms | 976ms | 212ms | 3rd |
| Unattributable | 1121ms | 226ms | 0ms | 3rd |
| https://stripchat.com/ | 898ms | 448ms | 111ms | 1st |
| https://assets.chapturist.com/assets/react-65374.c8e08b3896d5acf3.js | 328ms | 164ms | 13ms | 3rd |
| https://stripchat.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 315ms | 234ms | 2ms | 1st |
| https://assets.chapturist.com/assets/translations_en.acfd2d669c0c6f.js | 189ms | 104ms | 85ms | 3rd |
| https://assets.chapturist.com/assets/vendors-58735.b1abd3d909e07044.js | 179ms | 150ms | 16ms | 3rd |
| https://mmp.doppiocdn.com/player/mmp/v2.6.0/chunk-9aae7c8b732bd169bb0a.js | 124ms | 102ms | 21ms | 3rd |
| https://assets.chapturist.com/assets/viewcam.54e9a7ff4bde8927.js | 122ms | 111ms | 10ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction97 scripts, 1.6 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.chapturist.com/assets/bootstrap.1491271f6d9ef366.js | 673 KB | 380 KB (57%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/49861.6fdb3077a79e05c5.js | 45 KB | 170 KB (87%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/49861.6fdb3077a79e05c5.js | 0 KB | 170 KB (87%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/viewcam.54e9a7ff4bde8927.js | 0 KB | 141 KB (90%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/viewcam.54e9a7ff4bde8927.js | 41 KB | 141 KB (90%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/18602.a1ff38cbf959fcde.js | 25 KB | 86 KB (87%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/18602.a1ff38cbf959fcde.js | 0 KB | 86 KB (87%) | ✓ | 3rd |
| https://mmp.doppiocdn.com/player/mmp/v2.6.0/chunk-9aae7c8b732bd169bb0a.js | 78 KB | 57 KB (73%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/vendors-3106.c32a0ff338562b7c.js | 77 KB | 54 KB (71%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/3673.e1627f58b833dede.js | 0 KB | 47 KB (82%) | ✓ | 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 InventoryAction200 resources · 2.6 MB · 1.6 MB savings availableFIX
~1.6 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 200 resources | 2.6 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization32 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (334 KB)PASS
Web fonts
3
334 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- 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 ~167 KB and ~334 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints59 hints, 0 missing preconnectsPASS
Current Resource Hints
59 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall200 requests over 4241msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
assets.chapturist.com assets.chapturist.com | Other | 1746ms | 15 KB | — | €19/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 1228ms | 673 KB | 57% | €13/mo | Costly |
Unattributable Unattributable | Other | 1121ms | 0 KB | — | €12/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 328ms | 53 KB | — | €4/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 189ms | 200 KB | — | €2/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 179ms | 26 KB | — | €2/mo | Optional |
mmp.doppiocdn.com mmp.doppiocdn.com | Other | 124ms | 78 KB | 73% | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 122ms | 0 KB | 90% | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 87ms | 17 KB | — | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 58ms | 77 KB | 71% | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 55ms | 87 KB | — | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 52ms | 28 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- assets.chapturist.com adds 1746ms and costs ~€19/month
- assets.chapturist.com adds 1228ms and costs ~€13/month
- Unattributable adds 1121ms and costs ~€12/month
- assets.chapturist.com adds 328ms 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
assets.chapturist.com takes 1746ms 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
assets.chapturist.com takes 1228ms 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 assets.chapturist.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
Unattributable takes 1121ms 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
assets.chapturist.com takes 328ms 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
73% of mmp.doppiocdn.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
90% of assets.chapturist.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
71% of assets.chapturist.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