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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
98
GRADE
A+
FIX
0
REVIEW
2
PASS
11
INFO
1

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

Mobile Desktop
99
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
69
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

738 ms

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

738 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.

0.000

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

799 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.

738 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
14
11 PASS 2 REVIEW
B
Image Optimization
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 10 KB
0 oversized -0 KB
5 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
12 KB transferred, 7 requests
PASS
12 KB transferred, 7 requests
Info::
Page weighs 12 KB (12 KB transferred)
Info::
7 HTTP requests
Info::
Estimated 0.00 g CO2 per page load
12 KB / 2.4 MB budget
12 KB transferred
7 requests
0.00 g CO2 per page load
Images 9.6 KiB 77%
HTML 1.7 KiB 14%
Other 1.1 KiB 9%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
9% third-party, 0 ms blocking
PASS
9% third-party, 0 ms blocking
Info::
Third-party code accounts for 9% of page weight (1.2 KiB of 12.4 KiB)
Info::
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
Info::
All text resources are compressed
All text resources are properly compressed.
A+
JS Execution Cost
No JS execution data
PASS
No JS execution data
Info::
No significant JS execution detected

Main Thread Breakdown

Other 62% Style & Layout 22% Script Evaluation 8% Rendering 5% Parse HTML & CSS 3%
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
7 resources · 12 KB · 0 KB savings available
PASS
7 resources · 12 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 12 KB
Info::
1 third-party resources (9% of weight)
7 resources · 12.4 KiB · 1 third-party Within 1MB page-weight target
Image 77% · 9.6 KiB
Document 23% · 2.8 KiB
A+
HTTP Caching
max-age=3600 (1 hour)
PASS
max-age=3600 (1 hour)
Info::
Cache-Control header is set
Got: max-age=3600
Info::
Effective TTL: 1 hour (max-age=3600)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=3600

DirectiveValueMeaning
max-age3600Cache for 1 hour
Effective TTL: 3600 seconds
Network Waterfall
7 requests over 1317ms
INFO
0 ms 500 ms 1.0 s FCP 738 ms LCP 738 mshttps://libpng.org// https://libpng.org/ — 200 — 1.7 KiB — 676 ms — http/1.1https://libpng.org/pub/png/img_png/libpng-88x31.png/pub/png/img_png/libpng-88x31.png https://libpng.org/pub/png/img_png/libpng-88x31.png — 200 — 639 B — 185 ms — http/1.1https://libpng.org/pub/png/img_png/pngnow.png/pub/png/img_png/pngnow.png https://libpng.org/pub/png/img_png/pngnow.png — 200 — 2.5 KiB — 186 ms — http/1.1https://libpng.org/pub/mng/img_mng/mngnow-bearcy.png/pub/mng/img_mng/mngnow-bearcy.png https://libpng.org/pub/mng/img_mng/mngnow-bearcy.png — 200 — 2.6 KiB — 436 ms — http/1.1https://sflogo.sourceforge.net/sflogo.php?group_id=32355&type=9sflogo.sourceforge.net/sflogo.php?g... https://sflogo.sourceforge.net/sflogo.php?group_id=32355&type=9 — 200 — 1.2 KiB — 247 ms — h2https://libpng.org/pub/mng/img_mng/libmng.png/pub/mng/img_mng/libmng.png https://libpng.org/pub/mng/img_mng/libmng.png — 200 — 2.7 KiB — 362 ms — http/1.1https://libpng.org/favicon.ico/favicon.ico https://libpng.org/favicon.ico — 404 — 1.1 KiB — 185 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
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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