Performance
· 22 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.
1.50 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.05 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
65 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.
2.01 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.
7.06 s
Page Load Progression
FPage Weight BudgetAction7.1 MB transferred, 73 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction24 scripts, 514 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.squarespace.com/universal/scripts-compressed/common-6a459dad7444b31d-min.en-US.js | 274 KB | 172 KB (63%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/slides-685aea39541f033d-min.en-US.js | 160 KB | 109 KB (69%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VS6FV8D2V8 | 157 KB | 65 KB (41%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/common-vendors-a5542c2814272dd7-min.en-US.js | 168 KB | 62 KB (37%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/extract-css-moment-js-vendor-6f2a1f6ec9a41489-min.en-US.js | 44 KB | 43 KB (98%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/common-vendors-stable-b8d716935110c7b2-min.en-US.js | 80 KB | 39 KB (49%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/37231-b90ed72cfa0f5072-min.en-US.js | 39 KB | 22 KB (58%) | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/43300-6442d5ae90c0ccb6-min.en-US.js | 14 KB | — | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/12358-0ae5b672dfcacd40-min.en-US.js | 3 KB | — | ✓ | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-efd5f2134e4e70f4-min.en-US.js | 17 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 InventoryAction73 resources · 7.1 MB · 514 KB savings availableFIX
~513.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 73 resources | 7.1 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BJS Execution Cost619ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.squarespace.com/universal/scripts-compressed/common-6a459dad7444b31d-min.en-US.js | 197ms | 101ms | 22ms | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/slides-685aea39541f033d-min.en-US.js | 142ms | 122ms | 12ms | 3rd |
| Unattributable | 98ms | 3ms | 0ms | 3rd |
| https://www.petesrestaurants.com/ | 71ms | 4ms | 3ms | 3rd |
| https://assets.squarespace.com/universal/scripts-compressed/common-vendors-stable-b8d716935110c7b2-min.en-US.js | 56ms | 44ms | 5ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VS6FV8D2V8 | 54ms | 46ms | 8ms | 3rd |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CCompression AlgorithmActionMain response served uncompressedREVIEW
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
A+Image Optimization32 images, 0 KB saveablePASS
A+Font Loading8 fonts (316 KB)PASS
Web fonts
8
316 KB total
Render-blocking
0
of 8
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+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Network Waterfall73 requests over 1157msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
assets.squarespace.com assets.squarespace.com | Other | 197ms | 274 KB | 63% | $1/mo | Optional |
assets.squarespace.com assets.squarespace.com | Other | 142ms | 160 KB | 69% | $1/mo | Optional |
Unattributable Unattributable | Other | 98ms | 0 KB | — | $1/mo | Optional |
www.petesrestaurants.com www.petesrestaurants.com | Other | 71ms | 35 KB | — | $0/mo | Optional |
assets.squarespace.com assets.squarespace.com | Other | 56ms | 80 KB | 49% | $0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 54ms | 157 KB | 41% | $0/mo | Optional |
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
63% 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
69% 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
Image Optimization31 images, 3136 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
31
Total Size
3136 KB