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irisa.fr

https://irisa.fr· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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irisa.fr
Desktop screenshot of irisa.fr
Mobile screenshot of irisa.fr
Mobile

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Hosting Provider

IRISA-RENNES

IP Address

131.254.254.107

Site Location

🇫🇷 Francevia tld

Server Location

🇫🇷 Rennes, France

ASN

AS1938

Server

Apache

Nameservers

ns2.nic.fr.dns.inria.fr.dns-ext2.inria.fr.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
603 ms10%
Speed Index
784 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
979 KB
22 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

Web Servers

1
Apachev2.4.58

SEO Analysis

D58/100
17
9
1
Meta Tags7/15
Content10/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
I
irisa.fririsa.fr

Accueil | le site web de l'IRISA

No description available for this page.

Title Length32 chars

Recommended: 50-60 chars (~181px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

147 rules

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

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

Sponsored

AI & LLM Readiness

F21/100
Bot Access
3/25
Machine Read.
11/25
Schema Data
0/25
Citation
7/25

AI Bot Access

0/14 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

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
navheader/footer
Text ratio:9%
Words:393
Token eff.:Optimal
Sections/1K:12.7
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 2.6w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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
80/100
11
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
58/100
B
121 mg
CO₂e / view
979.2 KB
Page Weight
70%
Cleaner Than
New Visitor
138 mg
vs
Returning (cached)
69 mg
Annual (10K/mo)
14.5 kg
Emission Segments
Data Center
27 mg
Network
29 mg
Device
65 mg
Resource Breakdown
JavaScript
90.3 KB
Images
591.9 KB
CSS
281.8 KB
HTML
7.9 KB
Other
7.2 KB
Green Hosting Not Verified
IRISA-RENNES
3 recommendations
  • •Carbon footprint recommendation preview...
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A+

Security Score

91%Excellent
Static / Informational

HTTPS

No WAF

91d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

28.07.2025

Valid Until

28.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.irisa.fr

SHA-256 Fingerprint

A6:5B:F0:C7:84:54:CC:68:B5:07:52:A5:CB:89:2B:9A:0B:FB:FB:43...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 1800s(max-age=1800, public)
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-security-policy
frame-ancestors 'self' https://intranet.irisa.fr/ https://in...
content-type
text/html; charset=UTF-8
content-language
fr
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mail2-smtp-roc.national.inria.fr
mail3-smtp-sop.national.inria.fr

Domain Information

irisa.fr

Domain Age
31y 4m

Created

31.12.1994

Expires

31.12.2026

Last Updated

31.01.2026

Registrar

GIP RENATER

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
C
66/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto + Roboto condensed

WCAG Partial
71/100
Readability
/30
20/30

16px · LH 1.30

Hierarchy
/20
16/20

2x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Roboto

Sans32px

Body Font

Roboto condensed

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~32 CPL

Narrow lines
32px
h1
40px
h2
21px
h3
16px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

10 unique colors
2.14:1 Fail Light
#ffffff
Background· 59.00000000000001%
#b9afac
Secondary· 6.5%
#252646
Primary· 5.1%
#6c9274
Secondary· 4.9%
#5d4e67
Secondary· 4.8%
#b51579
Accent· 4.5%
#dbe5e7
Secondary· 4.3%
#116082
Accent· 4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

7 Resources

4
Scripts
3
Styles
1
Async
1
Defer

Top Script Sources

local(3)piwik.inria.fr(1)

Website Identity

irisa.fr

31 years old
Location detected: 🇫🇷 Francevia tld
GIP RENATERfr

Social Profiles

LinkedIn

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Last analyzed: 28 Apr 2026 at 02:49

Historical Analysis & Change Tracking