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.
630 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.17 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
110 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.
6.96 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.
11.98 s
Page Load Progression
FPage Weight BudgetAction40.9 MB transferred, 79 requestsFIX
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
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction3257ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.patreon.com/_marketing_assets/_next/static/chunks/pages/_app-bf0f3404f7a7c915.js | 1580ms | 865ms | 14ms | 3rd |
| Unattributable | 636ms | 9ms | 0ms | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/framework-ec5e1a8e3005e758.js | 332ms | 275ms | 5ms | 3rd |
| https://www.patreon.com/ | 271ms | 6ms | 0ms | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/pages/%5B%5B...slug%5D%5D-d6a8572dfec400b4.js | 121ms | 96ms | 18ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JF55G82FNT | 114ms | 95ms | 18ms | 3rd |
| https://www.patreon.com/_marketing_assets/assets/js/app.1776313633440.js | 88ms | 47ms | 41ms | 3rd |
| https://transcend-cdn.com/cm/8dec6ba2-a601-4c04-a3ba-e4d5b45000f4/ui.js | 65ms | 51ms | 14ms | 3rd |
| https://transcend-cdn.com/cm/8dec6ba2-a601-4c04-a3ba-e4d5b45000f4/airgap.js | 50ms | 41ms | 9ms | 3rd |
FJS BundlesAction19 scripts, 533 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.patreon.com/_marketing_assets/assets/js/app.1776313633440.js | 274 KB | 243 KB (89%) | ✓ | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/529-c17a6f08e7faf7d3.js | 172 KB | 79 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JF55G82FNT | 174 KB | 71 KB (41%) | ✓ | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/pages/_app-bf0f3404f7a7c915.js | 102 KB | 47 KB (47%) | ✓ | 3rd |
| https://transcend-cdn.com/cm/8dec6ba2-a601-4c04-a3ba-e4d5b45000f4/ui.js | 93 KB | 45 KB (48%) | ✓ | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/pages/%5B%5B...slug%5D%5D-d6a8572dfec400b4.js | 102 KB | 28 KB (27%) | ✓ | 3rd |
| https://transcend-cdn.com/cm/8dec6ba2-a601-4c04-a3ba-e4d5b45000f4/airgap.js | 52 KB | 21 KB (41%) | ✓ | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/W2updz71z32Uo5ZdMVQzE/_ssgManifest.js | 1 KB | — | ✓ | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js | 11 KB | — | ✓ | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/W2updz71z32Uo5ZdMVQzE/_buildManifest.js | 1 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
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 InventoryAction79 resources · 40.9 MB · 533 KB savings availableFIX
~533.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 79 resources | 40.9 MiB | ||||||
BImage Optimization34 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (21378 KB)PASS
Web fonts
6
21378 KB total
Render-blocking
0
of 6
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
- 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 ~10689 KB and ~21378 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
AHTTP Cachingmax-age=3600 (1 hour)PASS
max-age=3600
| Directive | Value | Meaning |
|---|---|---|
| max-age | 3600 | Cache for 1 hour |
Network Waterfall79 requests over 4835msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.patreon.com www.patreon.com | Other | 1580ms | 102 KB | 47% | €17/mo | Costly |
Unattributable Unattributable | Other | 636ms | 0 KB | — | €7/mo | Costly |
www.patreon.com www.patreon.com | Other | 332ms | 45 KB | — | €4/mo | Costly |
www.patreon.com www.patreon.com | Other | 271ms | 49 KB | — | €3/mo | Costly |
www.patreon.com www.patreon.com | Other | 121ms | 102 KB | 27% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 114ms | 174 KB | 41% | €1/mo | Optional |
www.patreon.com www.patreon.com | Other | 88ms | 274 KB | 89% | €1/mo | Optional |
transcend-cdn.com transcend-cdn.com | Other | 65ms | 93 KB | 48% | €1/mo | Optional |
transcend-cdn.com transcend-cdn.com | Other | 50ms | 52 KB | 41% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.patreon.com adds 1580ms and costs ~€17/month
- Unattributable adds 636ms and costs ~€7/month
- www.patreon.com adds 332ms and costs ~€4/month
- www.patreon.com adds 271ms and costs ~€3/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
www.patreon.com takes 1580ms 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 636ms 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
www.patreon.com takes 332ms 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
www.patreon.com takes 271ms 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 www.patreon.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