Performance
· 15 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.
883 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.61 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
121 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.
1.77 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.
3.82 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 182 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
DJS Execution CostAction2251ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.chapturist.com/assets/corejs-75349.9e240b24a5ffbb27.js | 538ms | 426ms | 7ms | 3rd |
| https://stripchat.com/ | 433ms | 90ms | 36ms | 1st |
| Unattributable | 338ms | 95ms | 0ms | 3rd |
| https://assets.chapturist.com/assets/vendors-58735.b1abd3d909e07044.js | 295ms | 44ms | 2ms | 3rd |
| https://assets.chapturist.com/assets/main.fb6ad07fbcefe8bb.js | 285ms | 277ms | 2ms | 3rd |
| https://assets.chapturist.com/assets/react-65374.c8e08b3896d5acf3.js | 102ms | 55ms | 5ms | 3rd |
| https://assets.chapturist.com/assets/bootstrap.1491271f6d9ef366.js | 93ms | 12ms | 58ms | 3rd |
| https://mmp.doppiocdn.com/player/mmp/v2.6.0/chunk-9aae7c8b732bd169bb0a.js | 58ms | 51ms | 6ms | 3rd |
| https://assets.chapturist.com/assets/translations_en.acfd2d669c0c6f.js | 57ms | 33ms | 24ms | 3rd |
| https://stripchat.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 53ms | 48ms | 1ms | 1st |
DJS BundlesAction78 scripts, 488 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.chapturist.com/assets/bootstrap.1491271f6d9ef366.js | 673 KB | 378 KB (56%) | ✓ | 3rd |
| https://mmp.doppiocdn.com/player/mmp/v2.6.0/chunk-9aae7c8b732bd169bb0a.js | 78 KB | 56 KB (73%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/vendors-3106.c32a0ff338562b7c.js | 77 KB | 54 KB (71%) | ✓ | 3rd |
| https://assets.chapturist.com/assets/corejs-75349.9e240b24a5ffbb27.js | 15 KB | — | ✓ | 3rd |
| https://assets.chapturist.com/assets/redux-48526.e096bd9b05468601.js | 2 KB | — | ✓ | 3rd |
| https://assets.chapturist.com/assets/vendors-57281.7eda8978a8e76135.js | 18 KB | — | ✓ | 3rd |
| https://assets.chapturist.com/assets/main.fb6ad07fbcefe8bb.js | 28 KB | — | ✓ | 3rd |
| https://assets.chapturist.com/assets/react-65374.c8e08b3896d5acf3.js | 53 KB | — | ✓ | 3rd |
| https://assets.chapturist.com/assets/redux-33349.fe7bd84d566cd749.js | 18 KB | — | ✓ | 3rd |
| https://assets.chapturist.com/assets/translations_en.acfd2d669c0c6f.js | 200 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
FPage Weight InventoryAction182 resources · 2.7 MB · 488 KB savings availableFIX
~488.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 182 resources | 2.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization41 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (453 KB)PASS
Web fonts
4
453 KB total
Render-blocking
0
of 4
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
- 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 ~226 KB and ~452 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall182 requests over 2138msINFO
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 | 538ms | 15 KB | — | €6/mo | Costly |
Unattributable Unattributable | Other | 338ms | 0 KB | — | €4/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 295ms | 26 KB | — | €3/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 285ms | 28 KB | — | €3/mo | Costly |
assets.chapturist.com assets.chapturist.com | Other | 102ms | 53 KB | — | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 93ms | 673 KB | 56% | €1/mo | Optional |
mmp.doppiocdn.com mmp.doppiocdn.com | Other | 58ms | 78 KB | 73% | €1/mo | Optional |
assets.chapturist.com assets.chapturist.com | Other | 57ms | 200 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- assets.chapturist.com adds 538ms and costs ~€6/month
- Unattributable adds 338ms and costs ~€4/month
- assets.chapturist.com adds 295ms and costs ~€3/month
- assets.chapturist.com adds 285ms and costs ~€3/month
78% 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 538ms 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
Unattributable takes 338ms 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 295ms 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 285ms 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
56% 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
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