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.
3.10 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.79 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.30 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.
3.10 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.
7.60 s
Page Load Progression
FPage Weight BudgetAction4.9 MB transferred, 130 requestsFIX
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
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 ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction3153ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://app.netlify.com/assets/js/monitoring.vendor.730ffd875945b0e1c39f.js | 668ms | 520ms | 37ms | 3rd |
| https://app.netlify.com/assets/js/app.82a0003019c45fd5dfcd.js | 619ms | 492ms | 112ms | 3rd |
| Unattributable | 560ms | 203ms | 0ms | 1st |
| https://app.netlify.com/assets/js/74899.b9e4603b4c9ad3265153.js | 275ms | 195ms | 43ms | 3rd |
| https://js.hs-analytics.net/analytics/1791396300000/7477936.js | 262ms | 198ms | 4ms | 3rd |
| https://cdn.segment.com/next-integrations/actions/3962/1faa179dfb20d0a3f5a0.js | 135ms | 126ms | 6ms | 3rd |
| https://js.stripe.com/v3 | 129ms | 80ms | 48ms | 3rd |
| https://app.netlify.com/edge-access?domain=astonishing-marigold-c4563e.netlify.app&requested_path=%2F&site_id=1fc2ab44-a723-40a1-891b-edf8fac0388f | 129ms | 8ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-957669464 | 124ms | 103ms | 19ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/guXhH0v-XMxlzmbTwqkaT4i5/recaptcha__en.js | 90ms | 51ms | 33ms | 3rd |
Showing top 10 of 12 scripts
FJS BundlesAction66 scripts, 3.2 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://app.netlify.com/assets/js/app.82a0003019c45fd5dfcd.js | 782 KB | 648 KB (83%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/guXhH0v-XMxlzmbTwqkaT4i5/recaptcha__en.js | 347 KB | 444 KB (53%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/guXhH0v-XMxlzmbTwqkaT4i5/recaptcha__en.js | 832 KB | 444 KB (53%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/guXhH0v-XMxlzmbTwqkaT4i5/recaptcha__en.js | 0 KB | 444 KB (53%) | ✓ | 3rd |
| https://app.netlify.com/assets/js/74899.b9e4603b4c9ad3265153.js | 336 KB | 252 KB (75%) | ✓ | 3rd |
| https://js.stripe.com/v3 | 250 KB | 184 KB (74%) | ✓ | 3rd |
| https://app.netlify.com/assets/js/monitoring.vendor.730ffd875945b0e1c39f.js | 244 KB | 163 KB (67%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-957669464&cx=c>m=4e6a61h2 | 165 KB | 116 KB (70%) | ✓ | 3rd |
| https://cdn.amplitude.com/engagement-browser/prod/split/b8674a24f598ed691b8e17983c9ca8dc57fd0476-chunk-KSMGCPLM.js | 170 KB | 85 KB (51%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WZQ32TR&l=dataLayer | 160 KB | 72 KB (45%) | ✓ | 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 · 4.9 MB · 3.2 MB savings availableFIX
~3.2 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 130 resources | 4.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization6 images, 0 KB saveableREVIEW
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CDocument CompressionActionDocument 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+Font Loading1 fonts (34 KB)PASS
Web fonts
1
34 KB total
Render-blocking
0
of 1
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
AAsset Compression1 of 2 asset hosts still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Network Waterfall130 requests over 4973msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
app.netlify.com app.netlify.com | Other | 668ms | 244 KB | 67% | $13/mo | Costly |
app.netlify.com app.netlify.com | Other | 619ms | 782 KB | 83% | $12/mo | Costly |
app.netlify.com app.netlify.com | Other | 275ms | 336 KB | 75% | $5/mo | Costly |
HubSpot Analytics js.hs-analytics.net | Analytics | 262ms | 43 KB | — | $5/mo | Costly |
Segment cdn.segment.com | Analytics | 135ms | 9 KB | — | $3/mo | Optional |
Stripe js.stripe.com | Payment | 129ms | 250 KB | 74% | $2/mo | Essential |
app.netlify.com app.netlify.com | Other | 129ms | 6 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 124ms | 165 KB | 39% | $2/mo | Optional |
www.gstatic.com www.gstatic.com | Other | 90ms | 0 KB | 53% | $2/mo | Optional |
cdn.sift.com cdn.sift.com | Other | 89ms | 20 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 74ms | 160 KB | 45% | $1/mo | Optional |
These scripts may cost more than they're worth
- app.netlify.com adds 668ms and costs ~$13/month
- app.netlify.com adds 619ms and costs ~$12/month
- app.netlify.com adds 275ms and costs ~$5/month
- HubSpot Analytics adds 262ms and costs ~$5/month
82% 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
app.netlify.com takes 668ms 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
67% of app.netlify.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
app.netlify.com takes 619ms 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
83% of app.netlify.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
app.netlify.com takes 275ms 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
75% of app.netlify.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
HubSpot Analytics takes 262ms 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
74% of Stripe'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
53% of www.gstatic.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