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.
0 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
0 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.043
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
0 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
0 ms
Page Load Progression
1.4 s
2.7 s
4.1 s
5.5 s
6.8 s
8.2 s
9.6 s
10.9 sFPage Weight BudgetAction14.4 MB transferred, 251 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
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
FJS Execution CostAction6365ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://amplitude.com/_next/static/chunks/pages/_app-8d613118d5b96f7c.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 1818ms | 1364ms | 39ms | 1st |
| Unattributable | 1387ms | 668ms | 0ms | 3rd |
| https://fast.wistia.net/assets/external/E-v1.js | 735ms | 570ms | 31ms | 3rd |
| https://amplitude.com/ | 412ms | 3ms | 1ms | 1st |
| https://cdn.amplitude.com/engagement-browser/prod/split/d18f6d9484a5cb4c3959ff883f5e9c85b65e817d-chunk-NUNDUC62.js | 408ms | 401ms | 0ms | 3rd |
| https://ob.roundprincemusic.com/i/8356b7ffc20afc0a5275c6176232dc10.js | 291ms | 152ms | 4ms | 3rd |
| https://amplitude.com/_next/static/chunks/framework-fce8e21f27fd62d5.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 259ms | 240ms | 4ms | 1st |
| https://client-registry.mutinycdn.com/mutiny-client/223.5.6.3.js | 227ms | 209ms | 0ms | 3rd |
| https://cdn.amplitude.com/script/e3e918f274fa30555c627abdb29840d5.experiment.js | 227ms | 195ms | 25ms | 3rd |
| https://amplitude.com/_next/static/chunks/ec7a46bc.b28b10e61865396a.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 176ms | 159ms | 5ms | 1st |
Showing top 10 of 15 scripts
CImage OptimizationAction50 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
CPage Weight InventoryAction251 resources · 14.4 MB · 0 KB savings availableREVIEW
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 251 resources | 14.4 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
AThird-Party Impact38% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (248 KB)PASS
Web fonts
5
248 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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 ~63 KB and ~126 ms
A+JS Bundles88 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://ob.roundprincemusic.com/i/8356b7ffc20afc0a5275c6176232dc10.js | 45 KB | — | ✓ | 3rd |
| https://cdn.amplitude.com/script/e3e918f274fa30555c627abdb29840d5.experiment.js | 135 KB | — | ✓ | 3rd |
| https://client-registry.mutinycdn.com/personalize/client/6a5246eb613bf61a.js | 20 KB | — | ✓ | 3rd |
| https://amplitude.com/_next/static/chunks/4475-1908917bd1ec9a63.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 4 KB | — | ✓ | 1st |
| https://amplitude.com/_next/static/chunks/8360-53688ac16a3be146.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 18 KB | — | ✓ | 1st |
| https://amplitude.com/_next/static/chunks/6542-21412c788df2faec.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 4 KB | — | ✓ | 1st |
| https://amplitude.com/_next/static/chunks/5174.ea78b33a98e21cf3.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 9 KB | — | ✓ | 1st |
| https://amplitude.com/_next/static/chunks/5567.3cf5994094d52a84.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 2 KB | — | ✓ | 1st |
| https://amplitude.com/_next/static/chunks/7891.6f951d2dbe3136f2.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 2 KB | — | ✓ | 1st |
| https://amplitude.com/_next/static/chunks/1959.07a4bb0b0a1b85b6.js?dpl=dpl_8fMpggVYoeAoqpFST7bPJ9eRjPYB | 2 KB | — | ✓ | 1st |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall251 requests over 10750msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1387ms | 0 KB | — | $18/mo | Costly |
fast.wistia.net fast.wistia.net | Other | 735ms | 162 KB | — | $10/mo | Costly |
Amplitude cdn.amplitude.com | Analytics | 408ms | 21 KB | — | $5/mo | Costly |
ob.roundprincemusic.com ob.roundprincemusic.com | Other | 291ms | 45 KB | — | $4/mo | Costly |
client-registry.mutinycdn.com client-registry.mutinycdn.com | Other | 227ms | 32 KB | — | $3/mo | Costly |
Amplitude cdn.amplitude.com | Analytics | 227ms | 135 KB | — | $3/mo | Costly |
fast.wistia.net fast.wistia.net | Other | 120ms | 44 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 93ms | 173 KB | — | $1/mo | Optional |
cc.cdn.civiccomputing.com cc.cdn.civiccomputing.com | Other | 83ms | 123 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 146 KB | — | $1/mo | Optional |
fast.wistia.net fast.wistia.net | Other | 56ms | 42 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1387ms and costs ~$18/month
- fast.wistia.net adds 735ms and costs ~$10/month
- Amplitude adds 408ms and costs ~$5/month
- ob.roundprincemusic.com adds 291ms and costs ~$4/month
- client-registry.mutinycdn.com adds 227ms and costs ~$3/month
- Amplitude adds 227ms and costs ~$3/month
58% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Unattributable takes 1387ms 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
fast.wistia.net takes 735ms 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
Amplitude takes 408ms 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
ob.roundprincemusic.com takes 291ms 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
client-registry.mutinycdn.com takes 227ms 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
Amplitude takes 227ms 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