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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
98
GRADE
A+
FIX
0
REVIEW
2
PASS
13
INFO
2

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

Mobile Desktop
100
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.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
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.

983 ms

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

1.23 s

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.

983 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.

1.23 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
17
13 PASS 2 REVIEW
B
Image Optimization
3 images, 0 KB saveable
REVIEW
3 images, 0 KB saveable
Warning::
https://scholar.google.com/intl/fr/scholar/images/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
3 images 49 KB
0 oversized -0 KB
3 legacy format
1 missing dimensions CLS risk

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

B
HTTP Caching
private, max-age=0
REVIEW
private, max-age=0
Info::
Cache-Control header is set
Got: private, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, max-age=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
max-age0Cache for 0 seconds
A+
Page Weight Budget
94 KB transferred, 5 requests
PASS
94 KB transferred, 5 requests
Info::
Page weighs 190 KB (94 KB transferred)
Info::
5 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
94 KB / 2.4 MB budget
94 KB transferred
5 requests
0.02 g CO2 per page load
Images 49.4 KiB 53%
HTML 40.7 KiB 43%
Other 3.8 KiB 4%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-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
292ms total JS execution
PASS
292ms total JS execution
Info::
https://scholar.google.com/: 194ms CPU time
Info::
Unattributable: 98ms CPU time
Info::
Third-party scripts: 98ms (34% of total)

Main Thread Breakdown

Other 42% Style & Layout 26% Script Evaluation 14% Parse HTML & CSS 8% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
https://scholar.google.com/194ms34ms21ms1st
Unattributable98ms5ms0ms3rd
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
5 resources · 94 KB · 0 KB savings available
PASS
5 resources · 94 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 94 KB
5 resources · 94.0 KiB · 0 third-party Within 1MB page-weight target
Image 57% · 53.2 KiB
Document 43% · 40.7 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources 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: Google Cloud

Network Waterfall
5 requests over 300ms
INFO
0 ms 500 ms 1.0 s FCP 983 ms LCP 1.2 shttps://scholar.google.com// https://scholar.google.com/ — 200 — 40.7 KiB — 162 ms — h2https://scholar.google.com/intl/fr/scholar/images/2x/scholar_logo_64dp.png/intl/fr/scholar/images/2x/scholar_... https://scholar.google.com/intl/fr/scholar/images/2x/scholar_logo_64dp.png — 200 — 14.0 KiB — 28 ms — h2https://scholar.google.com/intl/fr/scholar/images/2x/sprite_20161020.png/intl/fr/scholar/images/2x/sprite_2... https://scholar.google.com/intl/fr/scholar/images/2x/sprite_20161020.png — 200 — 30.5 KiB — 37 ms — h2https://scholar.google.com/intl/fr/scholar/images/2x/scholar_logo_24dp.png/intl/fr/scholar/images/2x/scholar_... https://scholar.google.com/intl/fr/scholar/images/2x/scholar_logo_24dp.png — 200 — 4.9 KiB — 36 ms — h2https://scholar.google.com/favicon.ico/favicon.ico https://scholar.google.com/favicon.ico — 200 — 3.8 KiB — 25 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
34% of JavaScript execution is third-party
First-party Third-party 98ms · 0KB · €1/mo
Unattributable
Other
Optional
Execution 98ms
Transfer 0 KB
Monthly Cost €1/mo

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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