Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop

Performance

100

Accessibility

100

Best Practices

100

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.09 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

5.97 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.04 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.001

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

4.09 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.

6.28 s

Page Load Progression

502 ms

1.0 s

1.5 s

2.0 s

2.5 s

3.0 s

3.5 s

4.0 s

Checks

17 PASS 4 REVIEW 2 FIX

Page Weight Budget

Action

5.7 MB transferred, 21 requests

FIX

5.7 MB transferred, 21 requests

Page weighs 7.3 MB (5.7 MB transferred)

JavaScript is 528 KB — consider code splitting or lazy loading

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Got: 528 KB

21 HTTP requests

Estimated 1.2 g CO2 per page load

5.7 MB transferred

21 requests

1.2 g CO2 per page load

Other 4.8 MiB 84%

JavaScript 527.6 KiB 9%

Fonts 149.3 KiB 3%

Images 128.3 KiB 2%

HTML 54.3 KiB 1%

CSS 45.2 KiB 1%

Other 2.1 KiB 0%

Other 931 B 0%

Other 812 B 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Over budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

JS Execution Cost

Action

4836ms total JS execution

FIX

4836ms total JS execution

https://piccap.co/assets/index-Cb8Lm-z4.js: 2084ms CPU time

https://piccap.co/: 1879ms CPU time

Unattributable: 872ms CPU time

Main Thread Breakdown

Script Evaluation 34% Style & Layout 33% Other 24% Rendering 6%

Script	Total	Scripting	Parse/Compile	Party
https://piccap.co/assets/index-Cb8Lm-z4.js	2084ms	1568ms	9ms	1st
https://piccap.co/	1879ms	34ms	11ms	1st
Unattributable	872ms	16ms	0ms	1st

JS Bundles

Action

1 scripts, 248 KB unused

REVIEW

1 scripts, 248 KB unused

https://piccap.co/assets/index-Cb8Lm-z4.js: 248 KB unused (47%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 248 KB

248 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://piccap.co/assets/index-Cb8Lm-z4.js	528 KB	248 KB (47%)	✓	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

Server-Timing Observability

No Server-Timing header found

REVIEW

No Server-Timing header found

Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.

Page Weight Inventory

Action

21 resources · 5.7 MB · 248 KB savings available

REVIEW

21 resources · 5.7 MB · 248 KB savings available

Page weight 5.7 MB exceeds 1 MB target by 4.7 MB

Got: 5.7 MB Expected: ≤ 1 MB

~248 KB of savings available

3 third-party resources (0% of weight)

2 resources over 200KB

21 resources · 5.7 MiB · 3 third-party 4.7 MiB over 1MB target

Media 84% · 4.8 MiB

JavaScript 9% · 527.6 KiB

Font 3% · 149.3 KiB

Image 2% · 129.1 KiB

Document 1% · 54.8 KiB

CSS 1% · 45.2 KiB

Other 0% · 2.5 KiB

~248.2 KiB of savings available

Remove unused JavaScript: 248.2 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

21 resources			5.7 MiB

HTTP Caching

private, no-cache

REVIEW

private, no-cache

Cache-Control header is set

Got: private, no-cache

No ETag or Last-Modified header

Conditional requests (304 Not Modified) are not possible without validators.

Cache-Control

private, no-cache

Directive	Value	Meaning
private	—	Only browser cache, not CDN/proxy
no-cache	—	Cache but always revalidate first

A+

Third-Party Impact

0% third-party, 0 ms blocking

PASS

0% third-party, 0 ms blocking

Third-party code accounts for 0% of page weight (812 B of 5.7 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

Image Optimization

7 images, 0 KB saveable

PASS

7 images, 0 KB saveable

All images are well-optimized

7 images 128 KB

0 oversized -0 KB

2 legacy format

0 missing dimensions CLS risk

A+

Font Loading

3 fonts (149 KB)

PASS

3 fonts (149 KB)

3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

149 KB total

Render-blocking

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

Inter-latin-8kRkwJBP.woff2 woff2 swap

Size 48 KB

Load time 61 ms

Start 382 ms

Risk FOUT — text flashes from fallback to web font

DMSans-latin-BNY05QUC.w... woff2 swap

Size 61 KB

Load time 81 ms

Start 390 ms

Risk FOUT — text flashes from fallback to web font

JetBrainsMono-latin-D00... woff2 swap

Size 40 KB

Load time 33 ms

Start 644 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 Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

2 hints, 0 missing preconnects

PASS

2 hints, 0 missing preconnects

Page uses 2 resource hint(s)

Current Resource Hints

preconnect

—

preload

dns-prefetch

—

prefetch

—

2 resource hints configured

A+

HTTP/3 (QUIC)

HTTP/3 advertised via Alt-Svc

PASS

HTTP/3 advertised via Alt-Svc

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+

Document Compression

Document response uses brotli

PASS

Document response uses brotli

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 Preload

LCP preload audit not available

PASS

LCP preload audit not available

LCP image preload audit not available for this scan

A+

Main HTML Cache-Control

Main HTML uses no-cache -- safe revalidate-on-request policy

PASS

Main HTML uses no-cache -- safe revalidate-on-request policy

Got: private, no-cache

A+

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

`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).

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+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

No render-blocking resources detected in <head>

A+

Third-Party Resources

No third-party resources detected

PASS

No third-party resources detected

JavaScript Blocking

1 JS blocking issue(s) detected

PASS

1 JS blocking issue(s) detected

Total JS execution time is 4.8 s -- over the 3.5s budget

Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.

A+

CSS Performance Depth

No CSS performance depth issues detected

PASS

No CSS performance depth issues detected

A+

Green Hosting

Whether the site is served from green-energy infrastructure

PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Asset Compression

No text asset hosts to measure

INFO

No text asset hosts to measure

No third-party or subdomain host served enough text assets to measure

Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.

Network Waterfall

21 requests over 1705ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Image Optimization

118 images, 1 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

118

Total Size

1 KB

114 missing dimensions 3 missing lazy loading

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.