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SGSiteGraph

univ-lyon1.fr

Accueil - Lyon 1 Université Claude Bernard

Last scanned Aug 1, 2026, 4:00 PM · 7 views

90

Overall score

Excellent

Summary

This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

7 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

562 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 25, 2026

Overall
90
SEO
75
Security
90
Performance
100
Accessibility
100

Organization

Company details published in this site's own structured data.

Meta tags

Title
Accueil - Lyon 1 Université Claude Bernard
Description
Canonical
https://www.univ-lyon1.fr
Language
fr
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
index, follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Hellenic Academic and Research Institutions CA
Subject
*.univ-lyon1.fr
Valid from
Mar 26, 2026
Valid to
Oct 11, 2026
Days until expiry
70
SAN domains
*.univ-lyon1.fr, univ-lyon1.fr

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 7 · H3 4

Links

86 internal · 35 external · 20 broken

Images

20 total · 0 missing alt

Scripts / Styles

14 scripts · 4 stylesheets

JS / CSS size

552 B · 0 B

Page size

173 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://univ-lyon1.fr
Final URL
https://www.univ-lyon1.fr
HTTP status
200
HTTP version
HTTP/2
Response time
559 ms
HTML size
173 KB
Redirect chain
https://univ-lyon1.fr → https://www.univ-lyon1.fr

See something wrong on this report? Request a correction

Frequently asked questions

What technology does univ-lyon1.fr use?
univ-lyon1.fr is built with Nginx.
Is univ-lyon1.fr secure (HTTPS)?
Yes. univ-lyon1.fr uses TLS 1.2 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Oct 11, 2026.
Who hosts univ-lyon1.fr?
Hosting provider information for univ-lyon1.fr is not available yet.
What is univ-lyon1.fr's SEO score?
univ-lyon1.fr scored 75/100 for SEO in the latest analysis (fair).
What is univ-lyon1.fr's overall website score?
univ-lyon1.fr has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Has univ-lyon1.fr's score changed over time?
univ-lyon1.fr's overall score has declined by 1 point (from 91 to 90) since Jul 25, 2026.