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institut-lumiere.org

https://institut-lumiere.org· First analyzed 09 May 2026· Updated 09 May 2026
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institut-lumiere.org
Desktop screenshot of institut-lumiere.org
Mobile screenshot of institut-lumiere.org
Mobile

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Hosting Provider

ADELI

IP Address

91.194.100.31

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Saint-Trivier-sur-Moignans, France

ASN

AS43142

Organization

ADELI

Server

Nginx

Nameservers

dns.ovh.net.ns.ovh.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
544 ms10%
Speed Index
707 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.3 MB
76 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
Alpine.js
Styling
Tailwind CSS
Infrastructure
Hosting
ADELI

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Frameworks

1
Alpine.js

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C60/100
18
7
1
Meta Tags8/15
Content12/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
I
institut-lumiere.orginstitut-lumiere.org

Accueil | Institut Lumière

Site officiel de l'Institut Lumière, cinémathèque nationale, situé rue du Premier-Film à Lyon, sur les lieux d’invention du Cinématographe par Louis et Augus...

Description truncated.
Title Length26 chars

Recommended: 50-60 chars (~150px / 580px)

Description Length168 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (56/66) — critical for accessibility and SEO

8 issues found

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Crawlability

Sitemap
robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

8/100
Poor
3 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
7/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User
data-nosnippet

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:5%
Words:1,249
Token eff.:Optimal
Sections/1K:10.4
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary270w
Descriptive Headingsavg 4w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
A
85/100
14
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
23/100
F
540 mg
CO₂e / view
4.3 MB
Page Weight
15%
Cleaner Than
New Visitor
617 mg
vs
Returning (cached)
308 mg
Annual (10K/mo)
64.7 kg
Emission Segments
Data Center
121 mg
Network
130 mg
Device
290 mg
Resource Breakdown
JavaScript
49.5 KB
Images
4.0 MB
CSS
179.5 KB
Fonts
981 B
HTML
14.0 KB
Green Hosting Not Verified
ADELI
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Interactive

HTTPS

No WAF

49d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

29.03.2026

Valid Until

27.06.2026

Subject Alternative Names (2)

institut-lumiere.orgwww.institut-lumiere.org

SHA-256 Fingerprint

84:7F:6C:5F:B4:73:D5:40:93:44:5C:6D:27:0F:3C:39:1B:34:80:CC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟣 Private(private, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-security-policy
script-src blob: 'self' 'unsafe-eval' 'unsafe-inline' https:...
content-type
text/html; charset=utf-8
date
Sat, 09 May 2026 18:18:35 GMT
expires
-1
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

aznar.dbmtechnologies.net
gw.institut-lumiere.org
express.dbmtechnologies.net

Domain Information

institut-lumiere.org

Domain Age
28y 3m

Created

29.01.1998

Expires

28.01.2027

Last Updated

09.12.2025

Registrar

OVH sas

DNSSEC
Not Enabled

Privacy & Compliance

Axeptio

Cookie Consent Banner
Axeptio
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Axeptio
Privacy policy page linked

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
76/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1, shrink-to-fit=no

Typography & Readability

Mulish

WCAG Partial
60/100
Readability
/30
16/30

18px · LH 1.11

Hierarchy
/20
10/20

0.89x ratio · ✓ H1→H6

WCAG
/25
18/25

3.53:1 min contrast

Performance
/25
16/25

2 fonts · 11 req

Heading Font

Mulish

Sans16px

Body Font

Mulish

Sans18px

Contrast Ratio

3.53:1

5 issues

Reading Comfort

Single Font Family

left aligned
16px
h1
38px
h2
23px
h3
18px
p
Perfect Fifth
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Tight line spacing (1.11). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 3.5:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 0

Color Palette

12 unique colors
17.14:1 AAA Light
#ffffff
Background· 36.099999999999994%
#191c1d
Text· 6%
#00a3e0
Primary· 10.4%
#80a0b3
Secondary· 7.5%
#473635
Secondary· 7.1%
#8e745c
Secondary· 7%
#ada28e
Secondary· 6.6%
#dfddd4
Secondary· 4.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

7 Resources

5
Scripts
2
Styles
4
Async
0
Defer

Top Script Sources

googletagmanager.com(2)google-analytics.com(1)static.axept.io(1)institut-lumiere.org(1)

Website Identity

institut-lumiere.org

28 years old
Location detected: 🇫🇷 Francevia ip
OVH sasfr

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Last analyzed: 09 May 2026 at 18:18

Historical Analysis & Change Tracking