Performance
· 27 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.
8.76 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
19.74 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.39 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.76 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.
20.32 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 224 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 CostAction10088ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.chapturist.com/assets/corejs-75349.9e240b24a5ffbb27.js | 2257ms | 1915ms | 3ms | 3rd |
| https://assets.chapturist.com/assets/arktype-6902.433741039fef922b.js | 1766ms | 1635ms | 12ms | 3rd |
| https://assets.chapturist.com/assets/bootstrap.b44469d0787e5887.js | 1453ms | 1151ms | 254ms | 3rd |
| Unattributable | 1409ms | 477ms | 0ms | 1st |
| https://stripchat.com/ | 1157ms | 157ms | 97ms | 1st |
| https://assets.chapturist.com/assets/react-74932.f5d5772e792e122a.js | 470ms | 263ms | 14ms | 3rd |
| https://assets.chapturist.com/assets/translations_en.8ebb3fb8bc4a6e.js | 356ms | 224ms | 107ms | 3rd |
| https://stripchat.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 310ms | 263ms | 1ms | 1st |
| https://mmp.doppiocdn.com/player/mmp/v2.10.0/chunk-8f817458e9765ffe6af2.js | 258ms | 236ms | 19ms | 3rd |
| https://assets.chapturist.com/assets/main.411d7f7091975b55.js | 252ms | 219ms | 19ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction69 scripts, 1.7 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.chapturist.com/assets/bootstrap.b44469d0787e5887.js | 684 KB | 391 KB (57%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/69136.73a935170c970ea4.js | 0 KB | 174 KB (87%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/69136.73a935170c970ea4.js | 46 KB | 174 KB (87%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/viewcam.9ae11a9628a199fa.js | 0 KB | 155 KB (89%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/viewcam.9ae11a9628a199fa.js | 45 KB | 155 KB (89%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/85246.7e8005662a12448b.js | 27 KB | 88 KB (86%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/85246.7e8005662a12448b.js | 0 KB | 88 KB (86%) | ✓ | 3rd |
| https://mmp.doppiocdn.com/player/mmp/v2.10.0/chunk-8f817458e9765ffe6af2.js | 95 KB | 69 KB (73%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/22738.758adc9cf101de4c.js | 0 KB | 54 KB (82%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/22738.758adc9cf101de4c.js | 19 KB | 54 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 InventoryAction224 resources · 2.7 MB · 1.7 MB savings availableFIX
~1.7 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 224 resources | 2.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization82 images, 0 KB saveableREVIEW
BCompression AlgorithmMain response uses Content-Encoding: identityREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
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
AResource Hints30 hints, 0 missing preconnectsPASS
Current Resource Hints
30 resource hints configured
preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://img.strpst.com. Remove the redundant dns-prefetch entries.
Performance issues directly impact user engagement and conversion rates.
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: //img.strpst.com (dns-prefetch+preconnect).
Performance issues directly impact user engagement and conversion rates.
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 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
A+CSS Performance DepthNo CSS performance depth issues 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 Waterfall224 requests over 4387msINFO
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 | 2257ms | 15 KB | — | €25/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 1766ms | 39 KB | — | €19/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 1453ms | 684 KB | 57% | €16/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 470ms | 53 KB | — | €5/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 356ms | 209 KB | — | €4/mo | Costly |
mmp.doppiocdn.com mmp.doppiocdn.com | Other | 258ms | 95 KB | 73% | €3/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 252ms | 66 KB | — | €3/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 164ms | 0 KB | 89% | €2/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 94ms | 26 KB | — | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 75ms | 81 KB | — | €1/mo | Optional |
assets.strpssts-ana.com assets.strpssts-ana.com | Other | 66ms | 2 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- assets.chapturist.com adds 2257ms and costs ~€25/month
- assets.chapturist.com adds 1766ms and costs ~€19/month
- assets.chapturist.com adds 1453ms and costs ~€16/month
- assets.chapturist.com adds 470ms and costs ~€5/month
- assets.chapturist.com adds 356ms and costs ~€4/month
- mmp.doppiocdn.com adds 258ms and costs ~€3/month
- assets.chapturist.com adds 252ms and costs ~€3/month
71% 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 2257ms 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 1766ms 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 1453ms 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
assets.chapturist.com takes 470ms 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 356ms 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
mmp.doppiocdn.com takes 258ms 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
assets.chapturist.com takes 252ms 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
89% 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-07-02 — 2026-07-29)
LCP (p75)
4940 ms
46% good
INP (p75)
974 ms
13% good
CLS (p75)
0.240
46% good
FCP (p75)
4032 ms
TTFB (p75)
906 ms
Image Optimization63 images, 106 KB total, 5 KB wastedINFO
Image Optimization Audit
Total Images
63
Total Size
106 KB
Oversized
3
Wasted
5 KB