Performance
· 28 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.
10.42 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
19.51 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.92 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.
10.62 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.
20.01 s
Page Load Progression
FPage Weight BudgetAction28.6 MB transferred, 130 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
DThird-Party ImpactAction99% third-party, 0 ms blockingFIX
FJS Execution CostAction12319ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://static1.squarespace.com/static/vta/5c5a519771c10ba3470d8101/scripts/8706.9f9354c132882253b6ae.js | 5166ms | 2118ms | 4ms | 3rd |
| https://static1.squarespace.com/static/vta/5c5a519771c10ba3470d8101/scripts/2099.8e1994abb812990dd1df.js | 2224ms | 1851ms | 43ms | 3rd |
| https://www.thepassivepractice.com/ | 1130ms | 23ms | 12ms | 1st |
| Unattributable | 943ms | 8ms | 0ms | 1st |
| https://assets.squarespace.com/universal/scripts-compressed/common-0a8c36863adaccf7-min.en-US.js | 869ms | 669ms | 70ms | 3rd |
| https://static1.squarespace.com/static/vta/5c5a519771c10ba3470d8101/scripts/site-bundle.52c5e172465bde21589d94024ac19bbf.js | 855ms | 334ms | 12ms | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/performance-cbc83aea355b96ac-min.en-US.js | 360ms | 74ms | 9ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-74MV10S65V | 258ms | 209ms | 44ms | 3rd |
| https://static1.squarespace.com/static/vta/5c5a519771c10ba3470d8101/scripts/section-divider.b3a21411477bb441a60d.js | 154ms | 39ms | 1ms | 3rd |
| https://definitions.sqspcdn.com/website-component-definition/static-assets/website.components.scrolling/0d57bc3f-455a-4753-8be3-c7281437982a_830/website.components.scrolling.visitor.js | 111ms | 82ms | 3ms | 3rd |
Showing top 10 of 14 scripts
DJS BundlesAction65 scripts, 484 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.squarespace.com/universal/scripts-compressed/common-0a8c36863adaccf7-min.en-US.js | 255 KB | 155 KB (61%) | ✓ | 3rd |
| https://static1.squarespace.com/static/vta/5c5a519771c10ba3470d8101/scripts/2099.8e1994abb812990dd1df.js | 167 KB | 80 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-74MV10S65V | 178 KB | 74 KB (42%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/common-vendors-2fbfc859f1ebfd76-min.en-US.js | 180 KB | 70 KB (39%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/extract-css-moment-js-vendor-5b1fd9aed201e910-min.en-US.js | 44 KB | 43 KB (98%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/common-vendors-stable-397e4959e69d0479-min.en-US.js | 69 KB | 41 KB (59%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/performance-cbc83aea355b96ac-min.en-US.js | 33 KB | 22 KB (66%) | ✓ | 3rd |
| https://definitions.sqspcdn.com/website-component-definition/static-assets/website.components.summary/c1a9d5d7-1574-456a-b2a7-c96df010ab9f_776/gallery-layout-stacked.js | 2 KB | — | ✓ | 3rd |
| https://static1.squarespace.com/static/vta/5c5a519771c10ba3470d8101/scripts/8706.9f9354c132882253b6ae.js | 14 KB | — | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/cldr-resource-pack-6a939bedfa5d68d7-min.en-US.js | 15 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 InventoryAction130 resources · 28.6 MB · 484 KB savings availableFIX
~483.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 130 resources | 28.6 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BAsset Compression2 of 3 asset hosts still on gzipREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
AImage Optimization14 images, 0 KB saveablePASS
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
A+Font Loading11 fonts (311 KB)PASS
Web fonts
11
311 KB total
Render-blocking
0
of 11
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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 ~3 KB and ~6 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 resource hints configured
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall130 requests over 3563msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static1.squarespace.com static1.squarespace.com | Other | 5166ms | 14 KB | — | $30/mo | Costly |
static1.squarespace.com static1.squarespace.com | Other | 2224ms | 167 KB | 48% | $13/mo | Costly |
assets.squarespace.com assets.squarespace.com | Other | 869ms | 255 KB | 61% | $5/mo | Costly |
static1.squarespace.com static1.squarespace.com | Other | 855ms | 39 KB | — | $5/mo | Costly |
assets.squarespace.com assets.squarespace.com | Other | 360ms | 33 KB | 66% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 258ms | 178 KB | 42% | $1/mo | Costly |
static1.squarespace.com static1.squarespace.com | Other | 154ms | 3 KB | — | $1/mo | Optional |
definitions.sqspcdn.com definitions.sqspcdn.com | Other | 111ms | 12 KB | — | $1/mo | Optional |
static1.squarespace.com static1.squarespace.com | Other | 75ms | 111 KB | — | $0/mo | Optional |
static1.squarespace.com static1.squarespace.com | Other | 67ms | 5 KB | — | $0/mo | Optional |
assets.squarespace.com assets.squarespace.com | Other | 55ms | 180 KB | 39% | $0/mo | Optional |
assets.squarespace.com assets.squarespace.com | Other | 53ms | 44 KB | 98% | $0/mo | Optional |
These scripts may cost more than they're worth
- static1.squarespace.com adds 5166ms and costs ~$30/month
- static1.squarespace.com adds 2224ms and costs ~$13/month
- assets.squarespace.com adds 869ms and costs ~$5/month
- static1.squarespace.com adds 855ms and costs ~$5/month
- assets.squarespace.com adds 360ms and costs ~$2/month
- Google Tag Manager adds 258ms and costs ~$1/month
83% 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
static1.squarespace.com takes 5166ms 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
static1.squarespace.com takes 2224ms 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
assets.squarespace.com takes 869ms 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
61% of assets.squarespace.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
static1.squarespace.com takes 855ms 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
assets.squarespace.com takes 360ms 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
66% of assets.squarespace.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 258ms 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
98% of assets.squarespace.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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-10-14 — 2026-11-10)
LCP (p75)
2443 ms
76% good
INP (p75)
0 ms
0% good
CLS (p75)
0.000
91% good
FCP (p75)
1030 ms
TTFB (p75)
631 ms
Image Optimization80 images, 1468 KB total, 155 KB wastedINFO
Image Optimization Audit
Total Images
80
Total Size
1468 KB
Oversized
1
Wasted
155 KB