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SGSiteGraph

ec-nantes.fr

Centrale Nantes

Last scanned Aug 5, 2026, 1:00 AM · 8 views

84

Overall score

Great

Summary

A top-ranking school on the international stage with close links to industry. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.

A top-ranking school on the international stage with close links to industry.

Top issues to fix

10 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

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

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 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.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

322 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+3 overall since Jul 27, 2026

Overall
84
SEO
75
Security
65
Performance
100
Accessibility
100

Organization

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

A top-ranking school on the international stage with close links to industry.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Centrale Nantes
Description
A top-ranking school on the international stage with close links to industry.
Canonical
https://www.ec-nantes.fr/english-version
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
index, follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Centrale Nantes
og:description
A top-ranking school on the international stage with close links to industry.
og:type
article
og:url
https://www.ec-nantes.fr/english-version

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

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 1.3
Issuer
Hellenic Academic and Research Institutions CA
Subject
*.ec-nantes.fr
Valid from
Dec 1, 2025
Valid to
Dec 1, 2026
Days until expiry
118
SAN domains
*.ec-nantes.fr, ec-nantes.fr

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 2 · H2 14 · H3 15

Links

0 internal · 190 external · 5 broken

Images

25 total · 0 missing alt

Scripts / Styles

7 scripts · 3 stylesheets

JS / CSS size

747 B · 44.3 KB

Page size

241 KB

Robots.txt & Sitemap

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

SEO issues

  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://ec-nantes.fr
Final URL
https://www.ec-nantes.fr:443/
HTTP status
200
HTTP version
HTTP/2
Response time
318 ms
HTML size
241 KB
Redirect chain
https://ec-nantes.fr → https://www.ec-nantes.fr:443/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does ec-nantes.fr use?
We did not detect any specific technologies for ec-nantes.fr in the latest scan.
Is ec-nantes.fr secure (HTTPS)?
Yes. ec-nantes.fr uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Dec 1, 2026.
Who hosts ec-nantes.fr?
Hosting provider information for ec-nantes.fr is not available yet.
What is ec-nantes.fr's SEO score?
ec-nantes.fr scored 75/100 for SEO in the latest analysis (fair).
What is ec-nantes.fr's overall website score?
ec-nantes.fr has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
Has ec-nantes.fr's score changed over time?
ec-nantes.fr's overall score has improved by 3 points (from 81 to 84) since Jul 27, 2026.