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univ-paris-diderot.fr

https://univ-paris-diderot.fr· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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univ-paris-diderot.fr
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Hosting Provider

Universite Paris

IP Address

81.194.22.239

Site Location

🇫🇷 Francevia tld

Server Location

🇫🇷 Paris, France

ASN

AS2200

Organization

Universite Paris

Server

Apache

Nameservers

korolev.univ-paris7.fr.shiva.jussieu.fr.potemkin.univ-paris7.fr.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
938 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
11 MB
83 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv5.2.24
cms
DiviCustom

Technology Stack

13 Technologies Detected

Plugins

6
Wp Accessibility
Divi Social Plus
Nextend Smart Slider3 Pro
Divi Team Members
All In One Event Calendar
Jetpack

Libraries

1
jQuery

Other

1
GSAP

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

Web Servers

1
Apachev2.4.25

Customer Support

1
Zendesk

SEO Analysis

D53/100
15
6
3
Meta Tags10/15
Content3/12
Headings7/8
Technical17/25
E-E-A-T0/7
Images1/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
U
univ-paris-diderot.fruniv-paris-diderot.fr

Université Paris Cité | Bienvenue à Université Paris Cité

No description available for this page.

Title Length57 chars

Recommended: 50-60 chars (~331px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (9 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (26/46) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

62 rules

Local SEO

Local Search Readiness

7/100
Poor
2 14 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

F31/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
4/25

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

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:1%
Words:1,107
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
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...
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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.
C
63/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
14/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
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.
25/100
F
1.39 g
CO₂e / view
11.0 MB
Page Weight
5%
Cleaner Than
New Visitor
1.59 g
vs
Returning (cached)
794 mg
Annual (10K/mo)
166.8 kg
Emission Segments
Data Center
311 mg
Network
334 mg
Device
746 mg
Resource Breakdown
JavaScript
303.3 KB
Images
10.2 MB
CSS
419.3 KB
HTML
122.1 KB
Other
546 B
Green Hosting Not Verified
Universite Paris
6 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

207d

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

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

20.11.2025

Valid Until

20.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.u-paris.fru-paris.fr

SHA-256 Fingerprint

3A:D7:F6:2D:60:EF:38:21:D0:29:C5:92:E5:C9:48:2E:EF:3D:2E:45...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Sun, 26 Apr 2026 14:43:11 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
link
<https://u-paris.fr/wp-json/>; rel="https://api.w.org/", <ht...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (4)

mx03.cloud.vadesecure.com
mx02.cloud.vadesecure.com
mx01.cloud.vadesecure.com
mx04.cloud.vadesecure.com

Domain Information

univ-paris-diderot.fr

Domain Age
19y 6m

Created

17.10.2006

Expires

17.10.2026

Last Updated

30.11.2025

Registrar

GIP RENATER

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked
Data Protection Officer mentioned

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
67/100
Mobile Friendly59 breakpoints
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=1.0, viewport-fit=cover
3 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Darby Sans Web + Open Sans

WCAG Partial
57/100
Readability
/30
24/30

19px · LH 1.50

Hierarchy
/20
6/20
WCAG
/25
14/25

1:1 min contrast

Performance
/25
13/25

2 fonts · 5 req

Heading Font

Darby Sans Web

Sans

Body Font

Open Sans

Sans19px

Contrast Ratio

1:1

5 issues

Reading Comfort

~56 CPL

Optimal (45–75)
34px
h2
21px
h3
19px
p

✅ Excellent readability: 19px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~56 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 13/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

Buy on MyFontsFlesch 13

Color Palette

10 unique colors
Light
#ffffff
Text· 10%
#192235
Secondary· 33.6%
#182d49
Accent· 10.8%
#131722
Primary· 10.5%
#274460
Secondary· 10%
#56758a
Secondary· 7.3%
#97a7ac
Secondary· 5.9%
#405165
Secondary· 5.3%

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

30 Resources

20
Scripts
10
Styles
3
Async
1
Defer

Top Script Sources

u-paris.fr(19)livestat.u-paris.fr(1)

Website Identity

univ-paris-diderot.fr

19 years old
Location detected: 🇫🇷 Francevia tld
GIP RENATERfr-FR

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Last analyzed: 26 Apr 2026 at 14:43

Historical Analysis & Change Tracking