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.
4.01 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
16.06 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.12 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.
25.45 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.
64.08 s
Page Load Progression
FPage Weight BudgetAction37.6 MB transferred, 80 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
FJS Execution CostAction14930ms 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 | 7402ms | 3821ms | 44ms | 3rd |
| Unattributable | 2586ms | 51ms | 0ms | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/framework-ec5e1a8e3005e758.js | 1578ms | 1253ms | 34ms | 3rd |
| https://www.patreon.com/ | 1239ms | 28ms | 2ms | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/pages/%5B%5B...slug%5D%5D-d6a8572dfec400b4.js | 483ms | 394ms | 62ms | 3rd |
| https://www.patreon.com/_marketing_assets/assets/js/app.1776313633440.js | 432ms | 243ms | 188ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JF55G82FNT | 430ms | 350ms | 78ms | 3rd |
| https://transcend-cdn.com/cm/8dec6ba2-a601-4c04-a3ba-e4d5b45000f4/ui.js | 300ms | 216ms | 47ms | 3rd |
| https://transcend-cdn.com/cm/8dec6ba2-a601-4c04-a3ba-e4d5b45000f4/airgap.js | 185ms | 145ms | 37ms | 3rd |
| https://www.patreon.com/_marketing_assets/_next/static/chunks/main-a9a8e9e376903548.js | 136ms | 110ms | 24ms | 3rd |
Showing top 10 of 12 scripts
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 InventoryAction80 resources · 37.6 MB · 533 KB savings availableFIX
~533.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 80 resources | 37.6 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 Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 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
AHTTP Cachingmax-age=3600 (1 hour)PASS
max-age=3600
| Directive | Value | Meaning |
|---|---|---|
| max-age | 3600 | Cache for 1 hour |
Network Waterfall80 requests over 4973msINFO
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 | 7402ms | 102 KB | 47% | €80/mo | Costly |
Unattributable Unattributable | Other | 2586ms | 0 KB | — | €28/mo | Costly |
www.patreon.com www.patreon.com | Other | 1578ms | 45 KB | — | €17/mo | Costly |
www.patreon.com www.patreon.com | Other | 1239ms | 49 KB | — | €13/mo | Costly |
www.patreon.com www.patreon.com | Other | 483ms | 102 KB | 27% | €5/mo | Costly |
www.patreon.com www.patreon.com | Other | 432ms | 274 KB | 89% | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 430ms | 174 KB | 41% | €5/mo | Costly |
transcend-cdn.com transcend-cdn.com | Other | 300ms | 93 KB | 48% | €3/mo | Costly |
transcend-cdn.com transcend-cdn.com | Other | 185ms | 52 KB | 41% | €2/mo | Optional |
www.patreon.com www.patreon.com | Other | 136ms | 37 KB | — | €1/mo | Optional |
www.patreon.com www.patreon.com | Other | 102ms | 172 KB | 47% | €1/mo | Optional |
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 55ms | 11 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.patreon.com adds 7402ms and costs ~€80/month
- Unattributable adds 2586ms and costs ~€28/month
- www.patreon.com adds 1578ms and costs ~€17/month
- www.patreon.com adds 1239ms and costs ~€13/month
- www.patreon.com adds 483ms and costs ~€5/month
- www.patreon.com adds 432ms and costs ~€5/month
- Google Tag Manager adds 430ms and costs ~€5/month
- transcend-cdn.com adds 300ms 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 7402ms 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 2586ms 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 1578ms 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 1239ms 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 483ms 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 432ms 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
Google Tag Manager takes 430ms 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
transcend-cdn.com takes 300ms 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