sesamath.net
Sésamath - Accueil
Last scanned Jul 26, 2026, 1:49 PM
Overall score
Great
Summary
Sésamath - Les Mathématiques pour tous !. This website uses Nginx hosted on OVH - OVH SAS, FR behind Fastly CDN. SEO is fair (70/100) and accessibility is excellent (95/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing canonical link.
Sésamath - Les Mathématiques pour tous !
- France
- Hosted on OVH - OVH SAS, FR
Top issues to fix
8 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+2 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
239 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Sésamath - Les Mathématiques pour tous !
Meta tags
- Title
- Sésamath - Accueil
- Description
- Sésamath - Les Mathématiques pour tous !
- Canonical
- Language
- fr
- Charset
- Viewport
- Robots meta
- index,follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- OVH - OVH SAS, FR
- CDN provider
- Fastly
- IP address
- 141.95.174.216
- ASN
- AS16276 (OVH - OVH SAS, FR)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.sesamath.net
- Valid from
- Jul 2, 2026
- Valid to
- Sep 30, 2026
- Days until expiry
- 63
- SAN domains
- sesamath.net, www.sesamath.net
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 5 · H2 3 · H3 0
Links
14 internal · 23 external · 0 broken
Images
8 total · 0 missing alt
Scripts / Styles
4 scripts · 1 stylesheets
JS / CSS size
152 KB · 17.2 KB
Page size
9.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing viewport meta tag
Scan details
- Requested URL
- https://sesamath.net
- Final URL
- https://www.sesamath.net/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 239 ms
- HTML size
- 9.6 KB
- Redirect chain
- https://sesamath.net → https://www.sesamath.net/
See something wrong on this report? Request a correction
Related websites
Same technology stack
seravo.com
Seravo
testpress.in
Best LMS Software for Online Courses & Tests | Testpress
vovici.com
Survey Management Software | Verint
doshinsports.com
道新スポーツ | DOSHIN SPORTS
mybizcloud.at
Startseite - my.bizCloud
nb.no
Nasjonalbiblioteket | Norske bøker, aviser, tidsskrift og bilder på nett
Same hosting provider
oiseaux.net
Les oiseaux
hostux.net
Hostux Network – Privacy-Focused & Open-Source Tools
dnscrypt.info
DNSCrypt version 2 - Official Project Home Page | DNSCrypt
whatismycountry.com
What is my country? Find your country and location by IP
livefoot.fr
LiveFoot: mercato, transfert, live foot en direct de football
radio-italiane.it
Ascolta Radio Italiane Online in Diretta
Frequently asked questions
- What technology does sesamath.net use?
- sesamath.net is built with jQuery, Nginx.
- Is sesamath.net secure (HTTPS)?
- Yes. sesamath.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 30, 2026.
- Who hosts sesamath.net?
- sesamath.net is hosted on OVH - OVH SAS, FR, behind Fastly CDN.
- What is sesamath.net's SEO score?
- sesamath.net scored 70/100 for SEO in the latest analysis (fair).
- What is sesamath.net's overall website score?
- sesamath.net has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card