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.
1.76 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.10 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
476 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.
1.99 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.
7.29 s
Page Load Progression
FPage Weight BudgetAction17.8 MB transferred, 84 requestsFIX
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 CostAction2935ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1036ms | 26ms | 0ms | 3rd |
| https://ko-fi.com/ | 558ms | 26ms | 7ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-M13FZ7VQ2C&cx=c>m=4e64h1 | 486ms | 380ms | 99ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TDF6KQX | 324ms | 230ms | 92ms | 3rd |
| https://ko-fi.com/landingpageassets/js/applify/applify.js | 109ms | 98ms | 3ms | 1st |
| https://storage.ko-fi.com/cdn/landing_assets/kofi-home/animation/bodymovin.min.js | 83ms | 24ms | 58ms | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 | 74ms | 44ms | 16ms | 3rd |
| https://js.monitor.azure.com/scripts/a/ai.0.js | 71ms | 47ms | 14ms | 3rd |
| https://cdn-cookieyes.com/client_data/e427bcbb1661dfc7ea2e3fe5/script.js?v=402jvdv | 70ms | 60ms | 4ms | 3rd |
| https://storage.ko-fi.com/cdn/scripts/jquery-2.0.0.min.js | 62ms | 40ms | 15ms | 3rd |
Showing top 10 of 11 scripts
DJS BundlesAction14 scripts, 200 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-TDF6KQX | 149 KB | 70 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-M13FZ7VQ2C&cx=c>m=4e64h1 | 174 KB | 67 KB (38%) | ✓ | 3rd |
| https://storage.ko-fi.com/cdn/landing_assets/kofi-home/animation/bodymovin.min.js | 72 KB | 64 KB (88%) | ✗ | 3rd |
| https://ko-fi.com/landingpageassets/js/applify/applify.js | 6 KB | — | ✗ | 1st |
| https://ko-fi.com/landingpageassets/js/libs/form-validator/form-validator.min.js | 13 KB | — | ✓ | 1st |
| https://ko-fi.com/landingpageassets/js/libs/bootstrap.js | 6 KB | — | ✓ | 1st |
| https://cdn-cookieyes.com/client_data/e427bcbb1661dfc7ea2e3fe5/script.js?v=402jvdv | 10 KB | — | ✓ | 3rd |
| https://ko-fi.com/landingpageassets/js/applify/ui-map.js | 1 KB | — | ✓ | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 | 11 KB | — | ✓ | 3rd |
| https://cdn-cookieyes.com/client_data/e427bcbb1661dfc7ea2e3fe5/banner.js | 8 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
DPage Weight InventoryAction84 resources · 17.8 MB · 200 KB savings availableFIX
~200.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 84 resources | 17.8 MiB | ||||||
BImage Optimization47 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
BHTTP CachingprivateREVIEW
private
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (103 KB)PASS
Web fonts
4
103 KB total
Render-blocking
0
of 4
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 Waterfall84 requests over 1980msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1036ms | 0 KB | — | $14/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 486ms | 174 KB | 38% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 324ms | 149 KB | 47% | $4/mo | Costly |
storage.ko-fi.com storage.ko-fi.com | Other | 83ms | 72 KB | 88% | $1/mo | Optional |
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 74ms | 11 KB | — | $1/mo | Optional |
js.monitor.azure.com js.monitor.azure.com | Other | 71ms | 22 KB | — | $1/mo | Optional |
cdn-cookieyes.com cdn-cookieyes.com | Other | 70ms | 10 KB | — | $1/mo | Optional |
storage.ko-fi.com storage.ko-fi.com | Other | 62ms | 30 KB | — | $1/mo | Optional |
cdn-cookieyes.com cdn-cookieyes.com | Other | 61ms | 8 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1036ms and costs ~$14/month
- Google Tag Manager adds 486ms and costs ~$6/month
- Google Tag Manager adds 324ms and costs ~$4/month
77% 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
Unattributable takes 1036ms 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
Google Tag Manager takes 486ms 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
Google Tag Manager takes 324ms 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
88% of storage.ko-fi.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