Performance

· 22 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

Accessibility

Best Practices

SEO

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

447 ms

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

1.14 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.

0.062

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

1.02 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.

1.17 s

Page Load Progression

416 ms

831 ms

1.2 s

1.7 s

2.1 s

2.5 s

2.9 s

3.3 s

Checks

12 PASS 6 REVIEW 1 FIX

HTTP Caching

Action

No cache headers

FIX

No cache headers

No Cache-Control header found

Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

Page Weight Budget

1.3 MB transferred, 65 requests

REVIEW

1.3 MB transferred, 65 requests

Page weighs 2.1 MB (1.3 MB transferred)

Fonts are 228 KB — consider subsetting or using system fonts

Subset fonts to include only used characters, or switch to system font stacks.

Got: 228 KB

65 HTTP requests

Estimated 0.27 g CO2 per page load

1.3 MB transferred

65 requests

0.27 g CO2 per page load

Images 895.2 KiB 68%

Fonts 227.8 KiB 17%

JavaScript 113.2 KiB 9%

CSS 70.9 KiB 5%

HTML 13.0 KiB 1%

Other 877 B 0%

0 2.4 MB 4.9 MB

Under budget

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

Image Optimization

10 images, 0 KB saveable

REVIEW

10 images, 0 KB saveable

All images are well-optimized

10 images 895 KB

0 oversized -0 KB

10 legacy format

0 missing dimensions CLS risk

Main HTML Cache-Control

No Cache-Control header on main HTML response

REVIEW

No Cache-Control header on main HTML response

Main HTML response has no Cache-Control header

Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.

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

65 resources · 1.3 MB · 22 KB savings available

REVIEW

65 resources · 1.3 MB · 22 KB savings available

Page weight 1.3 MB exceeds 1 MB target by 297 KB

Got: 1.3 MB Expected: ≤ 1 MB

1 third-party resources (-0% of weight)

1 resources over 200KB

65 resources · 1.3 MiB · 1 third-party 297.0 KiB over 1MB target

Image 68% · 895.2 KiB

Font 17% · 227.8 KiB

JavaScript 9% · 113.2 KiB

CSS 5% · 70.9 KiB

Document 1% · 13.9 KiB

~21.8 KiB of savings available

Remove unused JavaScript: 21.8 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

65 resources			1.3 MiB

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

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 (-1 B of 1.3 MiB)

Third-party blocking time is low (0 ms)

No third-party resources detected — all resources are first-party.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

283ms total JS execution

PASS

283ms total JS execution

https://zincaregalvanica.ro/: 150ms CPU time

Unattributable: 79ms CPU time

https://zincaregalvanica.ro/wp-includes/js/jquery/...: 54ms CPU time

Main Thread Breakdown

Script Evaluation 32% Other 30% Style & Layout 21% Parse HTML & CSS 7% Rendering 5% Script Parsing & Compilation 4%

Script	Total	Scripting	Parse/Compile	Party
https://zincaregalvanica.ro/	150ms	6ms	2ms	1st
Unattributable	79ms	2ms	0ms	1st
https://zincaregalvanica.ro/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	54ms	48ms	3ms	1st

A+

Font Loading

6 fonts (228 KB)

PASS

6 fonts (228 KB)

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

Web fonts

228 KB total

Render-blocking

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

fa-solid-900.woff2 woff2 swap

Size 76 KB

Load time 125 ms

Start 557 ms