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.
2.22 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.29 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
802 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.004
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.63 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.
10.38 s
Page Load Progression
DThird-Party ImpactAction99% third-party, 0 ms blockingFIX
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.2 MB transferred, 117 requestsREVIEW
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
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
CJS Execution CostAction1829ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/app.js | 780ms | 685ms | 56ms | 3rd |
| Unattributable | 485ms | 50ms | 0ms | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/feed-page.js | 364ms | 243ms | 1ms | 3rd |
| https://onlyfans.com/ | 128ms | 10ms | 1ms | 1st |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/18828.js | 73ms | 57ms | 15ms | 3rd |
CJS BundlesAction89 scripts, 200 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/app.js | 166 KB | 120 KB (72%) | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-76b9d3ee.js | 53 KB | 48 KB (93%) | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-f3eeee5c.js | 37 KB | 32 KB (88%) | ✓ | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js | 11 KB | — | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/2313.js | 5 KB | — | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-a3ef1e28.js | 5 KB | — | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-47b797e4.js | 11 KB | — | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-c0d76f48.js | 5 KB | — | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-0fb47c1d.js | 4 KB | — | ✓ | 3rd |
| https://static2.onlyfans.com/static/prod/f/202604161437-332dcbb15c/chunk-vendors-e8a121f7.js | 10 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
CPage Weight InventoryAction117 resources · 1.2 MB · 200 KB savings availableREVIEW
~200.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 117 resources | 1.2 MiB | ||||||
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization1 images, 0 KB saveablePASS
A+Font Loading3 fonts (48 KB)PASS
Web fonts
3
48 KB total
Render-blocking
0
of 3
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+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 Waterfall117 requests over 1385msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static2.onlyfans.com static2.onlyfans.com | Other | 780ms | 166 KB | 72% | $10/mo | Costly |
Unattributable Unattributable | Other | 485ms | 0 KB | — | $6/mo | Costly |
static2.onlyfans.com static2.onlyfans.com | Other | 364ms | 7 KB | — | $5/mo | Costly |
static2.onlyfans.com static2.onlyfans.com | Other | 73ms | 57 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- static2.onlyfans.com adds 780ms and costs ~$10/month
- Unattributable adds 485ms and costs ~$6/month
- static2.onlyfans.com adds 364ms and costs ~$5/month
93% 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
static2.onlyfans.com takes 780ms 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
72% of static2.onlyfans.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 485ms 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
static2.onlyfans.com takes 364ms 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