Performance

· 23 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

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.

837 ms

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

1.25 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.

0.000

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

973 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

1.26 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 s

Checks

12 PASS 6 REVIEW 1 FIX

Page Weight Budget

Action

2.1 MB transferred, 72 requests

FIX

2.1 MB transferred, 72 requests

Page weighs 3.4 MB (2.1 MB transferred)

Fonts are 564 KB — consider subsetting or using system fonts

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

Got: 564 KB

72 HTTP requests

Estimated 0.45 g CO2 per page load

2.1 MB transferred

72 requests

0.45 g CO2 per page load

Images 982.5 KiB 45%

Fonts 563.5 KiB 26%

Other 464.6 KiB 21%

HTML 126.1 KiB 6%

CSS 39.3 KiB 2%

Other 537 B 0%

JavaScript -1 B -0%

0 2.4 MB 4.9 MB

Approaching limit

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

HTTP/3 (QUIC)

HTTP/3 not advertised

REVIEW

HTTP/3 not advertised

HTTP/3 (QUIC) is not advertised

HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.

Document Compression

Document response uses gzip; brotli would be ~20% smaller

REVIEW

Document response uses gzip; brotli would be ~20% smaller

Main HTML response uses gzip (brotli would be ~20% smaller)

All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.

Main HTML Cache-Control

Action

Main HTML max-age=2592000 (~43200min) is aggressive

REVIEW

Main HTML max-age=2592000 (~43200min) is aggressive

Main HTML cached for 43200 minutes -- risks stale auth / SPA state

Long max-age on the main HTML document means users may see outdated auth state, SPA shells, or A/B variants until the cache expires. Consider Cache-Control: no-cache (or max-age=300) for HTML and let your hashed assets (JS/CSS/images) carry the long cache instead.

Got: max-age=2592000

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

72 resources · 2.1 MB · 0 KB savings available

REVIEW

72 resources · 2.1 MB · 0 KB savings available

Page weight 2.1 MB exceeds 1 MB target by 1.1 MB

Got: 2.1 MB Expected: ≤ 1 MB

16 third-party resources (8% of weight)

2 resources over 200KB

72 resources · 2.1 MiB · 16 third-party 1.1 MiB over 1MB target

Image 45% · 983.1 KiB

Font 26% · 563.5 KiB

JavaScript 21% · 464.6 KiB

Document 6% · 126.1 KiB

CSS 2% · 39.3 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

72 resources			2.1 MiB

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

A+

Third-Party Impact

8% third-party, 0 ms blocking

PASS

8% third-party, 0 ms blocking

Third-party code accounts for 8% of page weight (185.0 KiB of 2.1 MiB)

Third-party blocking time is low (0 ms)

92%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Image Optimization

12 images, 0 KB saveable

PASS

12 images, 0 KB saveable

All images are well-optimized

12 images 983 KB

0 oversized -0 KB

1 legacy format

0 missing dimensions CLS risk

A+

JS Execution Cost

340ms total JS execution

PASS

340ms total JS execution

https://nnnig.com/: 276ms CPU time

Unattributable: 65ms CPU time

Main Thread Breakdown

Style & Layout 53% Other 23% Parse HTML & CSS 9% Script Evaluation 7% Rendering 6%

Script	Total	Scripting	Parse/Compile	Party
https://nnnig.com/	276ms	23ms	5ms	1st
Unattributable	65ms	1ms	0ms	1st

A+

Font Loading

17 fonts (564 KB)

PASS

17 fonts (564 KB)

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

Web fonts

564 KB total

Render-blocking

of 17

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

c6dd33010d8af518a5a01ac... woff2 swap

Size 70 KB

Load time 300 ms

Start 391 ms