Performance

· 27 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

100

SEO

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

1.31 s

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

10.50 s

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

308 ms

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.

1.75 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.

10.51 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

14 PASS 6 REVIEW 3 FIX

Third-Party Impact

Action

91% third-party, 0 ms blocking

FIX

91% third-party, 0 ms blocking

Third-party code accounts for 91% of page weight (1.5 MiB of 1.7 MiB)

Third-party blocking time is low (0 ms)

91%

First-party Third-party

JS Execution Cost

Action

2862ms total JS execution

FIX

2862ms total JS execution

https://theporndude.com/: 1231ms CPU time

https://cdn.staticstack.net/includes/js/home-page....: 518ms CPU time

Unattributable: 475ms CPU time

https://theporndude.com/cdn-cgi/challenge-platform...: 321ms CPU time

https://mc.yandex.ru/metrika/tag.js: 199ms CPU time

Third-party scripts: 835ms (29% of total)

Main Thread Breakdown

Script Evaluation 28% Other 27% Style & Layout 26% Rendering 12% Parse HTML & CSS 5%

Script	Total	Scripting	Parse/Compile	Party
https://theporndude.com/	1231ms	66ms	5ms	1st
https://cdn.staticstack.net/includes/js/home-page.js?t=2026-07-24T18:35:57+00:00	518ms	171ms	6ms	3rd
Unattributable	475ms	18ms	0ms	1st
https://theporndude.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	321ms	284ms	3ms	1st
https://mc.yandex.ru/metrika/tag.js	199ms	170ms	20ms	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PCC295W	118ms	89ms	27ms	3rd

Page Weight Inventory

Action

49 resources · 1.7 MB · 121 KB savings available

FIX

49 resources · 1.7 MB · 121 KB savings available

Page weight 1.7 MB exceeds 1 MB target by 698 KB

Got: 1.7 MB Expected: ≤ 1 MB

~121 KB of savings available

40 third-party resources (91% of weight)

3 resources over 200KB

49 resources · 1.7 MiB · 40 third-party 698.3 KiB over 1MB target

Image 70% · 1.2 MiB

JavaScript 14% · 239.5 KiB

Document 5% · 94.0 KiB

Font 5% · 78.3 KiB

CSS 4% · 66.3 KiB

Other 2% · 32.6 KiB

~120.7 KiB of savings available

Remove unused JavaScript: 120.7 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

49 resources			1.7 MiB

Page Weight Budget

Action

1.7 MB transferred, 49 requests

REVIEW

1.7 MB transferred, 49 requests

Page weighs 3.2 MB (1.7 MB transferred)

Images are 1.2 MB — compress or use modern formats

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Got: 1.2 MB

49 HTTP requests

Estimated 0.35 g CO2 per page load

1.7 MB transferred

49 requests

0.35 g CO2 per page load

Images 1.2 MiB 69%

JavaScript 239.5 KiB 14%

HTML 94.0 KiB 5%

Fonts 78.3 KiB 5%

CSS 66.3 KiB 4%

Other 26.9 KiB 2%

Other 20.5 KiB 1%

Other 1.1 KiB 0%

Other 970 B 0%

0 2.4 MB 4.9 MB

Approaching limit

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Image Optimization

21 images, 0 KB saveable

REVIEW

21 images, 0 KB saveable

All images are well-optimized

21 images 1.2 MB

0 oversized -0 KB

19 legacy format

0 missing dimensions CLS risk

JS Bundles

4 scripts, 121 KB unused

REVIEW

4 scripts, 121 KB unused

https://www.googletagmanager.com/gtm.js?id=GTM-PCC...: 68 KB unused (57%)

Consider code splitting or tree shaking to reduce unused code.

https://mc.yandex.ru/metrika/tag.js: 52 KB unused (60%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 121 KB

121 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.googletagmanager.com/gtm.js?id=GTM-PCC295W	120 KB	68 KB (57%)	✓	3rd
https://mc.yandex.ru/metrika/tag.js	88 KB	52 KB (60%)	✓	3rd
https://cdn.staticstack.net/includes/js/home-page.js?t=2026-07-24T18:35:57+00:00	22 KB	—	✓	3rd
https://theporndude.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0da9f4911ba/main.js?	10 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

Action

Main HTML max-age=31536000 (~525600min) is aggressive

REVIEW

Main HTML max-age=31536000 (~525600min) is aggressive

Main HTML cached for 525600 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: private, max-age=31536000

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.

CSS Performance Depth

2 CSS depth issue(s) detected

REVIEW

2 CSS depth issue(s) detected

5 render-blocking stylesheet(s) -- recommended: <=3

Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.

1 `@font-face` rule(s) without `font-display` -- causes FOIT

An `@font-face` rule without `font-display` causes Flash of Invisible Text (FOIT): the browser hides the styled text for up to 3 seconds while the custom font downloads, then either swaps to fallback (Chrome / Firefox) or stays invisible (older Safari). Add `font-display: swap` (shows fallback immediately, swaps in the custom font when ready) or `font-display: optional` (uses fallback if the font isn't ready in 100ms; never causes visible swap). Either eliminates FOIT outright.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

4 fonts (78 KB)

PASS

4 fonts (78 KB)

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

Web fonts

78 KB total

Render-blocking

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

roboto-regular.woff2 woff2 swap

Size 20 KB

Load time 56 ms

Start 155 ms

Risk FOUT — text flashes from fallback to web font

roboto-medium.woff2 woff2 swap

Size 20 KB

Load time 60 ms

Start 155 ms

Risk FOUT — text flashes from fallback to web font

roboto-bold.woff2 woff2 swap

Size 20 KB

Load time 35 ms

Start 207 ms

Risk FOUT — text flashes from fallback to web font

roboto-light.woff2 woff2 swap

Size 19 KB

Load time 36 ms

Start 394 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+

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).

`Last-Modified` present -- timestamp-based conditional GET supported

Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.

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

A+

JavaScript Blocking

No render-blocking JS or document.write usage detected

PASS

No render-blocking JS or document.write usage detected

No JavaScript blocking 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

A+

HTTP Caching

max-age=31536000 (52 weeks)

PASS

max-age=31536000 (52 weeks)

Cache-Control header is set

Got: private, max-age=31536000

Effective TTL: 52 weeks (max-age=31536000)

Last-Modified header present

Cache-Control

private, max-age=31536000

Directive	Value	Meaning
private	—	Only browser cache, not CDN/proxy
max-age	31536000	Cache for 52 weeks

Effective TTL: 31536000 seconds

Network Waterfall

49 requests over 1906ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

29% of JavaScript execution is third-party

First-party Third-party 835ms · 230KB · €4/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
cdn.staticstack.net cdn.staticstack.net	Other	518ms	22 KB	—	€3/mo	Costly
mc.yandex.ru mc.yandex.ru	Other	199ms	88 KB	60%	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	118ms	120 KB	57%	€1/mo	Optional

cdn.staticstack.net

Other

Costly

Execution 518ms

Transfer 22 KB

Monthly Cost €3/mo

mc.yandex.ru

Other

Optional

Execution 199ms

Transfer 88 KB

Unused 60%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 118ms

Transfer 120 KB

Unused 57%

Monthly Cost €1/mo

These scripts may cost more than they're worth

cdn.staticstack.net adds 518ms and costs ~€3/month

cdn.staticstack.net takes 518ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

60% of mc.yandex.ru's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

57% of Google Tag Manager's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

Real-User Performance (CrUX)

Field metrics from the Chrome User Experience Report

INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-06-26 — 2026-07-23)

LCP (p75)

1324 ms

91% good

INP (p75)

170 ms

80% good

CLS (p75)

0.000

98% good

FCP (p75)

928 ms

TTFB (p75)

318 ms

This origin passes Core Web Vitals assessment

Image Optimization

15 images, 0 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

0 KB

Oversized

3 missing dimensions 14 missing lazy loading

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

Browse & Analyze

Learn

Performance

Page Load Progression

Font loading timeline

Optimization checklist

Green Hosting

These scripts may cost more than they're worth

Chrome User Experience (CrUX)

Image Optimization Audit