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

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.

928 ms

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

1.04 s

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

45 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.

928 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.

1.04 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 5 REVIEW 2 FIX

Third-Party Impact

Action

81% third-party, 0 ms blocking

FIX

81% third-party, 0 ms blocking

Third-party code accounts for 81% of page weight (970.6 KiB of 1.2 MiB)

Third-party blocking time is low (0 ms)

19%

81%

First-party Third-party

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

1.2 MB transferred, 44 requests

REVIEW

1.2 MB transferred, 44 requests

Page weighs 4.2 MB (1.2 MB transferred)

JavaScript is 895 KB — consider code splitting or lazy loading

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

Got: 895 KB

44 HTTP requests

Estimated 0.24 g CO2 per page load

1.2 MB transferred

44 requests

0.24 g CO2 per page load

JavaScript 895.4 KiB 75%

CSS 191.7 KiB 16%

Images 53.0 KiB 4%

Fonts 30.3 KiB 3%

HTML 22.0 KiB 2%

Other 2.1 KiB 0%

Other 556 B 0%

Other 547 B 0%

0 2.4 MB 4.9 MB

Under 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 Bundles

18 scripts, 105 KB unused

REVIEW

18 scripts, 105 KB unused

https://www.googletagmanager.com/gtag/js?id=G-KGKX...: 71 KB unused (42%)

Consider code splitting or tree shaking to reduce unused code.

https://adriangram.it/wp-includes/js/dist/vendor/r...: 34 KB unused (87%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 105 KB

105 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.googletagmanager.com/gtag/js?id=G-KGKXHJ0W5C	169 KB	71 KB (42%)	✓	3rd
https://adriangram.it/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1	39 KB	34 KB (87%)	✓	1st
https://adriangram.it/wp-content/plugins/contact-form-7/includes/swv/js/index.js?ver=6.1.1	4 KB	—	✓	1st
https://adriangram.it/wp-content/plugins/contact-form-7/includes/js/index.js?ver=6.1.1	5 KB	—	✓	1st
https://adriangram.it/wp-includes/js/dist/vendor/react.min.js?ver=18.3.1.1	5 KB	—	✓	1st
https://cdn.tailwindcss.com/3.4.17	124 KB	—	✓	3rd
https://adriangram.it/wp-includes/js/dist/hooks.min.js?ver=4d63a3d491d11ffd8ac6	2 KB	—	✓	1st
https://adriangram.it/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6	4 KB	—	✓	1st
blob:https://adriangram.it/8867724f-9c26-4831-bd22-b94785dd4b42	-0 KB	—	✓	3rd
https://adriangram.it/wp-content/plugins/gp-premium/menu-plus/functions/js/offside.min.js?ver=2.5.0	3 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

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

44 resources · 1.2 MB · 105 KB savings available

REVIEW

44 resources · 1.2 MB · 105 KB savings available

Page weight 1.2 MB exceeds 1 MB target by 172 KB

Got: 1.2 MB Expected: ≤ 1 MB

~105 KB of savings available

14 third-party resources (81% of weight)

1 resources over 200KB

44 resources · 1.2 MiB · 14 third-party 171.5 KiB over 1MB target

JavaScript 75% · 895.4 KiB

CSS 16% · 191.7 KiB

Image 5% · 54.0 KiB

Font 3% · 30.3 KiB

Document 2% · 22.0 KiB

Other 0% · 2.1 KiB

~104.9 KiB of savings available

Remove unused JavaScript: 104.9 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

44 resources			1.2 MiB

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Image Optimization

4 images, 0 KB saveable

PASS

4 images, 0 KB saveable

All images are well-optimized

4 images 53 KB

0 oversized -0 KB

1 legacy format

0 missing dimensions CLS risk

A+

JS Execution Cost

145ms total JS execution

PASS

145ms total JS execution

https://unpkg.com/@babel/standalone/babel.min.js?v...: 95ms CPU time

https://www.googletagmanager.com/gtag/js?id=G-KGKX...: 50ms CPU time

Third-party scripts: 145ms (100% of total)

Main Thread Breakdown

Script Evaluation 40% Script Parsing & Compilation 22% Other 21% Style & Layout 10% Parse HTML & CSS 5%

Script	Total	Scripting	Parse/Compile	Party
https://unpkg.com/@babel/standalone/babel.min.js?ver=7.0.0	95ms	49ms	46ms	3rd
https://www.googletagmanager.com/gtag/js?id=G-KGKXHJ0W5C	50ms	42ms	9ms	3rd

A+

Font Loading

3 fonts (30 KB)

PASS

3 fonts (30 KB)

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

Web fonts

30 KB total

Render-blocking

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

2sDfZG1Wl4LcnbuKjk0mRUe... woff2 swap

Size 10 KB

Load time 38 ms

Start 250 ms

Risk FOUT — text flashes from fallback to web font

2sDcZG1Wl4LcnbuCJW8zaGW... woff2 swap

Size 10 KB

Load time 45 ms

Start 251 ms

Risk FOUT — text flashes from fallback to web font

2sDcZG1Wl4LcnbuCNWgzaGW... woff2 swap

Size 10 KB

Load time 51 ms

Start 251 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

No optimization needed

PASS

No optimization needed

No resource hint issues

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+

Compression Algorithm

Main response uses brotli

PASS

Main 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+

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+

Green Hosting

Whether the site is served from green-energy infrastructure

PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall

44 requests over 804ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

Per-script blocking time, transfer cost, and cache headers

INFO

100% of JavaScript execution is third-party

First-party Third-party 145ms · 169KB · €2/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
unpkg unpkg.com	CDN	95ms	0 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	50ms	169 KB	42%	€1/mo	Optional

unpkg

CDN

Optional

Execution 95ms

Transfer 0 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 50ms

Transfer 169 KB

Unused 42%

Monthly Cost €1/mo

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

How third-party costs are calculated

Image Optimization

5 images, 55 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

55 KB

2 missing lazy loading

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