https://notehand.app
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
91
GRADE
A
FIX
1
REVIEW
4
PASS
14
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
87
90
81
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.27 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.40 s
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.
0.132
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.27 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.
1.40 s
Page Load Progression
375 ms
750 ms
1.1 s
1.5 s
1.9 s 2.2 s 2.6 s 3.0 sChecks
2214 PASS 4 REVIEW 1 FIX
DJS BundlesAction11 scripts, 247 KB unusedFIX
JS Bundles
Action11 scripts, 247 KB unused
11 scripts, 247 KB unused
Warning::
https://notehand.app/assets/index-sJIST7MY.js: 176 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-K0EG...: 71 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://notehand.app/assets/vendor-icons-p8aawUMs....: unminified — 3 KB could be saved
Info::
Total unused JavaScript: 247 KB
247 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://notehand.app/assets/index-sJIST7MY.js | 270 KB | 176 KB (65%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-K0EGZGZFZT | 177 KB | 71 KB (40%) | ✓ | 3rd |
| https://notehand.app/assets/vendor-motion-D_zvdyIk.js | 2 KB | — | ✓ | 1st |
| https://notehand.app/assets/vendor-icons-p8aawUMs.js | 11 KB | — | ✗ | 1st |
| https://notehand.app/assets/vendor-react-DasPH1iO.js | 3 KB | — | ✓ | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496 | 11 KB | — | ✓ | 3rd |
| https://notehand.app/assets/workbox-window.prod.es5-X279BU3z.js | 4 KB | — | ✓ | 1st |
| https://notehand.app/assets/ColorPicker-CVDvK5W9.js | 4 KB | — | ✓ | 1st |
| https://notehand.app/assets/PageSidebar-BjHaDMGR.js | 5 KB | — | ✓ | 1st |
| https://notehand.app/assets/LayerPanel-CN_0-EwS.js | 6 KB | — | ✓ | 1st |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
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.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BThird-Party Impact52% third-party, 0 ms blockingREVIEW
Third-Party Impact
52% third-party, 0 ms blocking
52% third-party, 0 ms blocking
Warning::
Third-party code accounts for 52% of page weight (368.4 KiB of 703.3 KiB)
Info::
Third-party blocking time is low (0 ms)
48%
52%
First-party Third-party
BJS Execution Cost514ms total JS executionREVIEW
JS Execution Cost
514ms total JS execution
514ms total JS execution
Info::
https://notehand.app/assets/index-sJIST7MY.js: 167ms CPU time
Info::
https://notehand.app/: 137ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-K0EG...: 89ms CPU time
Info::
Unattributable: 62ms CPU time
Info::
https://notehand.app/cdn-cgi/challenge-platform/sc...: 58ms CPU time
Info::
Third-party scripts: 89ms (17% of total)
Main Thread Breakdown
Script Evaluation 52% Other 25% Style & Layout 16% Script Parsing & Compilation 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://notehand.app/assets/index-sJIST7MY.js | 167ms | 129ms | 1ms | 1st |
| https://notehand.app/ | 137ms | 10ms | 1ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-K0EGZGZFZT | 89ms | 74ms | 15ms | 3rd |
| Unattributable | 62ms | 3ms | 0ms | 1st |
| https://notehand.app/cdn-cgi/challenge-platform/scripts/jsd/main.js | 58ms | 55ms | 0ms | 1st |
BPage Weight Inventory26 resources · 703 KB · 247 KB savings availableREVIEW
Page Weight Inventory
26 resources · 703 KB · 247 KB savings available
26 resources · 703 KB · 247 KB savings available
Info::
Within 1MB page-weight target
Got: 703 KB
Info::
~247 KB of savings available
Warning::
10 third-party resources (52% of weight)
Info::
1 resources over 200KB
26 resources · 703.3 KiB · 10 third-party Within 1MB page-weight target
JavaScript 71% · 499.9 KiB
Font 25% · 177.6 KiB
CSS 2% · 15.2 KiB
Other 1% · 4.1 KiB
Document 1% · 3.6 KiB
Image 0% · 3.0 KiB
~247.1 KiB of savings available
Remove unused JavaScript: 247.1 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 26 resources | 703.3 KiB | ||||||
BHTTP Cachingpublic,max-age=0,must-revalidateREVIEW
HTTP Caching
public,max-age=0,must-revalidate
public,max-age=0,must-revalidate
Info::
Cache-Control header is set
Got: public,max-age=0,must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
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 |
A+Page Weight Budget703 KB transferred, 26 requestsPASS
Page Weight Budget
703 KB transferred, 26 requests
703 KB transferred, 26 requests
Info::
Page weighs 1.9 MB (703 KB transferred)
Info::
26 HTTP requests
Info::
Estimated 0.14 g CO2 per page load
703 KB transferred
26 requests
0.14 g CO2 per page load
JavaScript 499.9 KiB 71%
Fonts 177.6 KiB 25%
CSS 15.2 KiB 2%
HTML 3.6 KiB 1%
Other 3.2 KiB 0%
Other 2.1 KiB 0%
Other 1.3 KiB 0%
Other 547 B 0%
Images 0 B 0%
0 2.4 MB 4.9 MB
Under budget
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Image Optimization1 images, 0 KB saveablePASS
Image Optimization
1 images, 0 KB saveable
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 0 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+Font Loading5 fonts (178 KB)PASS
Font Loading
5 fonts (178 KB)
5 fonts (178 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
5
178 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
Wnz6HAc5bAfYB2Q7ZjYYiAz... woff2 swap
Size 73 KB
Load time 105 ms
Start 640 ms
Risk FOUT — text flashes from fallback to web font
LDI1apSQOAYtSuYWp8ZhfYe... woff2 swap
Size 14 KB
Load time 61 ms
Start 640 ms
Risk FOUT — text flashes from fallback to web font
KtkxAKiDZI_td1Lkx62xHZH... woff2 swap
Size 13 KB
Load time 48 ms
Start 640 ms
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 74 ms
Start 691 ms
Risk FOUT — text flashes from fallback to web font
tDbv2o-flEEny0FZhsfKu5W... woff2 swap
Size 31 KB
Load time 69 ms
Start 693 ms
Risk FOUT — text flashes from fallback to web font
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
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public,max-age=0,must-revalidate
A+Server-Timing Observability3 Server-Timing entries advertisedPASS
Server-Timing Observability
3 Server-Timing entries advertised
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+Server Response Intelligence3 server-response signal(s) detectedPASS
Server Response Intelligence
3 server-response signal(s) detected
3 server-response signal(s) detected
Info::
`Cache-Status` header present (RFC 9211): "Netlify Edge"; fwd=miss
The page returns a `Cache-Status` header -- the standardized way for CDNs and caches to communicate per-hop cache state to debugging tools. Format: `Cache-Status: cdn-name; hit; ttl=300` (or `; fwd=miss` / `; fwd=stale`). Standard alternative to vendor-specific `X-Cache` patterns each CDN had historically. Cloudflare, Fastly, and Akamai all support emitting it.
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall26 requests over 1320msINFO
Network Waterfall
26 requests over 1320ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
17% of JavaScript execution is third-party
First-party Third-party 89ms · 177KB · $1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 89ms | 177 KB | 40% | $1/mo | Optional |
Google Tag Manager
Tag Manager
Execution 89ms
Transfer 177 KB
Unused 40%
Monthly Cost $1/mo
Image Optimization1 images, 2 KB total, 0 KB wastedINFO
Image Optimization
1 images, 2 KB total, 0 KB wasted
Image Optimization Audit
Total Images
1
Total Size
2 KB
1 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.