https://lacia.life
Performance
· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
96
GRADE
A
FIX
1
REVIEW
1
PASS
21
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
59
95
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
6.27 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.49 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
92 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.
6.27 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.
10.58 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
2621 PASS 1 REVIEW 1 FIX
DJS Execution CostAction2310ms total JS executionFIX
JS Execution Cost
Action2310ms total JS execution
2310ms total JS execution
Warning::
https://lacia.life/: 1199ms CPU time
Warning::
Unattributable: 594ms CPU time
Warning::
https://lacia.life/assets/index-DoHyi94N.js: 463ms CPU time
Info::
https://static.cloudflareinsights.com/beacon.min.j...: 54ms CPU time
Info::
Third-party scripts: 54ms (2% of total)
Main Thread Breakdown
Other 63% Script Evaluation 24% Style & Layout 10%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://lacia.life/ | 1199ms | 77ms | 7ms | 1st |
| Unattributable | 594ms | 21ms | 0ms | 1st |
| https://lacia.life/assets/index-DoHyi94N.js | 463ms | 428ms | 3ms | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba1788362987495 | 54ms | 38ms | 0ms | 3rd |
BPage Weight Budget1.1 MB transferred, 59 requestsREVIEW
Page Weight Budget
1.1 MB transferred, 59 requests
1.1 MB transferred, 59 requests
Info::
Page weighs 1.5 MB (1.1 MB transferred)
Info::
59 HTTP requests
Info::
Estimated 0.22 g CO2 per page load
1.1 MB transferred
59 requests
0.22 g CO2 per page load
Images 826.6 KiB 76%
JavaScript 215.2 KiB 20%
CSS 17.1 KiB 2%
HTML 10.9 KiB 1%
Other 6.9 KiB 1%
Other 6.4 KiB 1%
Other 911 B 0%
Other 455 B 0%
0 2.4 MB 4.9 MB
Under budget
A+Third-Party Impact1% third-party, 0 ms blockingPASS
Third-Party Impact
1% third-party, 0 ms blocking
1% third-party, 0 ms blocking
Info::
Third-party code accounts for 1% of page weight (10.1 KiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
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 Optimization5 images, 0 KB saveablePASS
Image Optimization
5 images, 0 KB saveable
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 827 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+Font LoadingNo web fonts (system fonts)PASS
Font Loading
No web fonts (system fonts)
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+JS Bundles44 scripts, 30 KB unusedPASS
JS Bundles
44 scripts, 30 KB unused
44 scripts, 30 KB unused
Warning::
https://lacia.life/assets/index-DoHyi94N.js: 30 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 30 KB
30 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://lacia.life/assets/index-DoHyi94N.js | 77 KB | 30 KB (39%) | ✓ | 1st |
| https://lacia.life/assets/react-SIfiwpqq.js | 4 KB | — | ✓ | 1st |
| https://lacia.life/assets/react-dom-x9LNwWQc.js | 2 KB | — | ✓ | 1st |
| https://lacia.life/assets/createServerFn-BeC4yHFw.js | 12 KB | — | ✓ | 1st |
| https://lacia.life/assets/link-5skObtIq.js | 8 KB | — | ✓ | 1st |
| https://lacia.life/assets/useMatch-BI2N-WL4.js | 1 KB | — | ✓ | 1st |
| https://lacia.life/assets/lazyRouteComponent-T-iC1a3V.js | 2 KB | — | ✓ | 1st |
| https://lacia.life/assets/jsx-runtime-0vZSBttN.js | 1 KB | — | ✓ | 1st |
| https://lacia.life/assets/Match-BEA91Y5m.js | 2 KB | — | ✓ | 1st |
| https://lacia.life/assets/sidebars-CwO9xs-u.js | 24 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
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 Hints3 hints, 0 missing preconnectsPASS
Resource Hints
3 hints, 0 missing preconnects
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)
Current Resource Hints
preconnect—
preload 3
dns-prefetch—
prefetch—
3 resource hints configured
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=30 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=30 (≤ 5min) is appropriate
Main HTML max-age=30 (≤ 5min) is appropriate
Info::
Main HTML max-age=30 (≤ 5min) is appropriate
Got: private, max-age=30, 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 Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
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+Page Weight Inventory59 resources · 1.1 MB · 30 KB savings availablePASS
Page Weight Inventory
59 resources · 1.1 MB · 30 KB savings available
59 resources · 1.1 MB · 30 KB savings available
Warning::
Page weight 1.1 MB exceeds 1 MB target by 60 KB
Got: 1.1 MB Expected: ≤ 1 MB
Info::
1 third-party resources (1% of weight)
Info::
2 resources over 200KB
59 resources · 1.1 MiB · 1 third-party 60.5 KiB over 1MB target
Image 77% · 833.6 KiB
JavaScript 20% · 215.2 KiB
CSS 2% · 17.1 KiB
Document 1% · 10.9 KiB
Other 1% · 7.7 KiB
~30.0 KiB of savings available
Remove unused JavaScript: 30.0 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 59 resources | 1.1 MiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
A+JavaScript BlockingNo render-blocking JS or document.write usage detectedPASS
JavaScript Blocking
No render-blocking JS or document.write usage detected
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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
AHTTP Cachingmax-age=30 (30 seconds)PASS
HTTP Caching
max-age=30 (30 seconds)
max-age=30 (30 seconds)
Info::
Cache-Control header is set
Got: private, max-age=30, must-revalidate
Info::
Effective TTL: 30 seconds (max-age=30)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
private, max-age=30, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| max-age | 30 | Cache for 30 seconds |
| must-revalidate | — | Must recheck with server after expiry |
Effective TTL: 30 seconds
Network Waterfall59 requests over 2929msINFO
Network Waterfall
59 requests over 2929ms
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
2% of JavaScript execution is third-party
First-party Third-party 54ms · 10KB · ¥3/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 54ms | 10 KB | — | ¥3/mo | Optional |
static.cloudflareinsights.com
Other
Execution 54ms
Transfer 10 KB
Monthly Cost ¥3/mo
Image Optimization11 images, 823 KB total, 374 KB wastedINFO
Image Optimization
11 images, 823 KB total, 374 KB wasted
Image Optimization Audit
Total Images
11
Total Size
823 KB
Oversized
3
Wasted
374 KB
11 missing dimensions 1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.