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

100

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.

1.86 s

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

3.23 s

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

1 ms

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

0.005

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

2.35 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.

3.68 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

20 PASS 2 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.

JS Execution Cost

Action

1276ms total JS execution

REVIEW

1276ms total JS execution

Unattributable: 528ms CPU time

https://dollar.cafe/: 445ms CPU time

https://dollar.cafe/~partytown/partytown-sandbox-s...: 196ms CPU time

https://www.datadoghq-browser-agent.com/us1/v7/dat...: 107ms CPU time

Third-party scripts: 107ms (8% of total)

Main Thread Breakdown

Other 39% Script Evaluation 33% Style & Layout 19% Parse HTML & CSS 4%

Script	Total	Scripting	Parse/Compile	Party
Unattributable	528ms	85ms	0ms	1st
https://dollar.cafe/	445ms	36ms	10ms	1st
https://dollar.cafe/~partytown/partytown-sandbox-sw.html?1787733018072	196ms	154ms	5ms	1st
https://www.datadoghq-browser-agent.com/us1/v7/datadog-rum.js	107ms	89ms	13ms	3rd

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.

Page Weight Budget

978 KB transferred, 245 requests

PASS

978 KB transferred, 245 requests

Page weighs 1.9 MB (978 KB transferred)

245 HTTP requests — consider bundling or reducing

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Estimated 0.20 g CO2 per page load

978 KB transferred

245 requests

0.20 g CO2 per page load

Images 403.7 KiB 41%

Other 179.3 KiB 18%

Other 142.0 KiB 15%

JavaScript 122.9 KiB 13%

Fonts 76.2 KiB 8%

HTML 53.2 KiB 5%

Other 630 B 0%

Other 318 B 0%

0 2.4 MB 4.9 MB

Under budget

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

A+

Third-Party Impact

9% third-party, 0 ms blocking

PASS

9% third-party, 0 ms blocking

Third-party code accounts for 9% of page weight (92.5 KiB of 978.3 KiB)

Third-party blocking time is low (0 ms)

91%

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

19 images, 0 KB saveable

PASS

19 images, 0 KB saveable

is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://dollar.cafe/pluto-images/funnel/images/9ee... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

19 images 404 KB

0 oversized -0 KB

0 legacy format

2 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

A+

Font Loading

2 fonts (76 KB)

PASS

2 fonts (76 KB)

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

Web fonts

76 KB total

Render-blocking

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

2543cbb5aaf5009d.woff2 woff2 swap

Size 47 KB

Load time 51 ms

Start 419 ms

Risk FOUT — text flashes from fallback to web font

2347556cb98273b2.woff2 woff2 swap

Size 29 KB

Load time 35 ms

Start 420 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+

JS Bundles

29 scripts, 34 KB unused

PASS

29 scripts, 34 KB unused

https://www.datadoghq-browser-agent.com/us1/v7/dat...: 34 KB unused (58%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 34 KB

34 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.datadoghq-browser-agent.com/us1/v7/datadog-rum.js	60 KB	34 KB (58%)	✓	3rd
https://dollar.cafe/_astro/analytics.D6t8g7IC.js	2 KB	—	✓	1st
https://dollar.cafe/_astro/datadogRum.-0hL22Eu.js	5 KB	—	✓	1st
https://dollar.cafe/_astro/LandingHero.astro_astro_type_script_index_0_lang.CIoWYZVZ.js	1 KB	—	✓	1st
https://dollar.cafe/_astro/TopPicks.astro_astro_type_script_index_1_lang.T88Fxnwn.js	0 KB	—	✓	1st
https://dollar.cafe/_astro/types.BrqeXqyi.js	1 KB	—	✓	1st
https://dollar.cafe/_astro/MobileBottomBar.astro_astro_type_script_index_0_lang.DYEmhC6F.js	1 KB	—	✓	1st
https://dollar.cafe/_astro/FooterAppAdoption.astro_astro_type_script_index_0_lang.BMIAu9kg.js	1 KB	—	✓	1st
https://dollar.cafe/_astro/MobileAppPromoModal.astro_astro_type_script_index_0_lang.kf5Ykq58.js	0 KB	—	✓	1st
https://dollar.cafe/_astro/OwnerAnalytics.astro_astro_type_script_index_0_lang.PbIqrnZZ.js	1 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

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-Timing Observability

1 Server-Timing entries advertised

PASS

1 Server-Timing entries advertised

Server-Timing header advertises 1 timing entries

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

Compressed response missing `Vary` header

The page is served with `Content-Encoding: br` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.

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+

Page Weight Inventory

245 resources · 978 KB · 34 KB savings available

PASS

245 resources · 978 KB · 34 KB savings available

Within 1MB page-weight target

Got: 978 KB

7 third-party resources (9% of weight)

245 resources · 978.3 KiB · 7 third-party Within 1MB page-weight target

Image 43% · 425.3 KiB

JavaScript 31% · 302.0 KiB

Document 18% · 173.5 KiB

Font 8% · 76.2 KiB

Other 0% · 1.2 KiB

~34.2 KiB of savings available

Remove unused JavaScript: 34.2 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

245 resources			978.3 KiB

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

1 render-blocking <script src> tag(s) without async/defer

Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.

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

Network Waterfall

245 requests over 3100ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

8% of JavaScript execution is third-party

First-party Third-party 107ms · 60KB · $1/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
www.datadoghq-browser-agent.com www.datadoghq-browser-agent.com	Other	107ms	60 KB	58%	$1/mo	Optional

www.datadoghq-browser-agent.com

Other

Optional

Execution 107ms

Transfer 60 KB

Unused 58%

Monthly Cost $1/mo

58% of www.datadoghq-browser-agent.com'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 (2026-07-28 — 2026-08-24)

LCP (p75)

1111 ms

90% good

INP (p75)

62 ms

97% good

CLS (p75)

0.000

100% good

FCP (p75)

998 ms

TTFB (p75)

557 ms

This origin passes Core Web Vitals assessment

Image Optimization

1 images, 95 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

95 KB

1 missing dimensions 1 missing lazy loading

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