college-de-france.fr
Collège de France - Enseigner la recherche en train de se faire
Last scanned Aug 3, 2026, 4:00 AM · 10 views
Overall score
Excellent
Summary
Enseigner la recherche en train de se faire. This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
Collège de France
Enseigner la recherche en train de se faire
- 11, place Marcelin-Berthelot, Paris, 75005, FR
Top issues to fix
5 issues found · 1 high priority
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
730 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+4 overall since Jul 26, 2026
- Overall
- 93
- SEO
- 75
- Security
- 100
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- Phone
- 01 44 27 12 11
- Address
- 11, place Marcelin-Berthelot, Paris, 75005, FR
Meta tags
- Title
- Collège de France - Enseigner la recherche en train de se faire
- Description
- Canonical
- https://www.college-de-france.fr/fr
- Language
- fr
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://www.college-de-france.fr/themes/custom/cdf_theme/dist/images/favicons/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Hellenic Academic and Research Institutions CA
- Subject
- college-de-france.fr
- Valid from
- Dec 17, 2025
- Valid to
- Dec 17, 2026
- Days until expiry
- 136
- SAN domains
- college-de-france.fr, www.college-de-france.fr
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 13 · H3 26
Links
69 internal · 17 external · 20 broken
Images
27 total · 0 missing alt
Scripts / Styles
4 scripts · 5 stylesheets
JS / CSS size
2.1 KB · 0 B
Page size
238 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Missing meta description
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://college-de-france.fr
- Final URL
- https://www.college-de-france.fr/fr
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 726 ms
- HTML size
- 238 KB
- Redirect chain
- https://college-de-france.fr → https://www.college-de-france.fr/ → https://www.college-de-france.fr/fr
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does college-de-france.fr use?
- college-de-france.fr is built with Drupal, jQuery, Nginx.
- Is college-de-france.fr secure (HTTPS)?
- Yes. college-de-france.fr uses TLS 1.2 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Dec 17, 2026.
- Who hosts college-de-france.fr?
- Hosting provider information for college-de-france.fr is not available yet.
- What is college-de-france.fr's SEO score?
- college-de-france.fr scored 75/100 for SEO in the latest analysis (fair).
- What is college-de-france.fr's overall website score?
- college-de-france.fr has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.
- What company operates college-de-france.fr?
- college-de-france.fr is operated by Collège de France. Enseigner la recherche en train de se faire
- Has college-de-france.fr's score changed over time?
- college-de-france.fr's overall score has improved by 4 points (from 89 to 93) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card