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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
2
REVIEW
2
PASS
9
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
92
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
52
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
77
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

618 ms

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

837 ms

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.

0.166

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

618 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.

837 ms

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
15
9 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (78.4 KiB of 78.5 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
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.

B
Image Optimization
7 images, 0 KB saveable
REVIEW
7 images, 0 KB saveable
Info::
All images are well-optimized
7 images 52 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
78 KB transferred, 11 requests
PASS
78 KB transferred, 11 requests
Info::
Page weighs 130 KB (78 KB transferred)
Info::
11 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
78 KB / 2.4 MB budget
78 KB transferred
11 requests
0.02 g CO2 per page load
Images 52.3 KiB 67%
HTML 25.6 KiB 33%
Other 382 B 0%
CSS 255 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
JS Execution Cost
63ms total JS execution
PASS
63ms total JS execution
Info::
https://www.haproxy.org/: 63ms CPU time
Warning::
Third-party scripts: 63ms (100% of total)

Main Thread Breakdown

Style & Layout 38% Other 35% Rendering 15% Script Evaluation 6% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://www.haproxy.org/63ms3ms1ms3rd
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
No JavaScript
PASS
No JavaScript
Info::
No JavaScript bundles
No JavaScript files loaded.
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
11 resources · 78 KB · 0 KB savings available
PASS
11 resources · 78 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 78 KB
Warning::
10 third-party resources (100% of weight)
11 resources · 78.5 KiB · 10 third-party Within 1MB page-weight target
Image 67% · 52.3 KiB
Document 33% · 25.9 KiB
CSS 0% · 255 B
Other 0% · 99 B
Network Waterfall
11 requests over 313ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 618 ms LCP 837 mshttps://haproxy.org// https://haproxy.org/ — 301 — 99 B — 85 ms — h2https://www.haproxy.org/www.haproxy.org/ https://www.haproxy.org/ — 200 — 25.6 KiB — 77 ms — h3https://www.haproxy.org/img/HAProxyCommunityEdition_60px.pngwww.haproxy.org/img/HAProxyCommunit... https://www.haproxy.org/img/HAProxyCommunityEdition_60px.png — 200 — 15.0 KiB — 37 ms — h3https://whos.amung.us/cwidget/62nl1k3va5id/069ed8fff200.pngwhos.amung.us/cwidget/62nl1k3va5id/... https://whos.amung.us/cwidget/62nl1k3va5id/069ed8fff200.png — 307 — 283 B — 136 ms — h3https://www.haproxy.org/img/Ad_1.pngwww.haproxy.org/img/Ad_1.png https://www.haproxy.org/img/Ad_1.png — 200 — 10.3 KiB — 45 ms — h3https://www.haproxy.org/img/Ad_2.pngwww.haproxy.org/img/Ad_2.png https://www.haproxy.org/img/Ad_2.png — 200 — 8.3 KiB — 43 ms — h3https://www.haproxy.org/img/Ad_4.pngwww.haproxy.org/img/Ad_4.png https://www.haproxy.org/img/Ad_4.png — 200 — 13.6 KiB — 49 ms — h3https://www.haproxy.org/img/btn_donate_SM_usd.gifwww.haproxy.org/img/btn_donate_SM_u... https://www.haproxy.org/img/btn_donate_SM_usd.gif — 200 — 1.7 KiB — 49 ms — h3https://www.haproxy.org/img/btn_donate_SM_eur.gifwww.haproxy.org/img/btn_donate_SM_e... https://www.haproxy.org/img/btn_donate_SM_eur.gif — 200 — 1.8 KiB — 50 ms — h3https://www.haproxy.org/size.css?1350x940www.haproxy.org/size.css?1350x940 https://www.haproxy.org/size.css?1350x940 — 200 — 255 B — 25 ms — h3https://widgets.amung.us/draw/?w=colored&n=5&c=069ed8fff200&p=leftwidgets.amung.us/draw/?w=colored&n=... https://widgets.amung.us/draw/?w=colored&n=5&c=069ed8fff200&p=left — 200 — 1.5 KiB — 28 ms — h3
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 63ms · 26KB · €1/mo
www.haproxy.org
Other
Optional
Execution 63ms
Transfer 26 KB
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

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

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