🌐 math.se 200 🔒 SSL Valid
Checked: (cached 2026-10-28 23:20:42) ↻ Refresh 🔗 Visit site
✨ AI Description
This site is a Swedish mathematics showcase from Stockholm University’s Department of Mathematics, presenting interactive or illustrated mathematical concepts rendered in ASCII art. It features visualizations of famous objects and ideas such as π, the Mandelbrot set, the Lorenz attractor, Pascal’s triangle, and Fourier epicycles.
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 106d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
N/A
Hosting ?The company and location where this website's server is physically located.Read more →
Unknown
Security ?Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
0/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
130.237.198.48
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
100 mob
Uptime
100%
⚡ Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 100
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Mobile
100
Score
100
Accessibility
100
Best Practices
100
SEO
LCP 1.09s
CLS 0.000
FCP 1.09s
TTFB 0.12s
TBT 0ms
SI 2.26s
Desktop
100
Score
100
Accessibility
100
Best Practices
100
SEO
LCP 0.43s
CLS 0.000
FCP 0.43s
TTFB 0.12s
TBT 0ms
SI 1.08s
Checked: 2026-10-29 00:20:14.315606 · View on PageSpeed
🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
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🖥️ Web Server
Apache 2.4.66
📸 Screenshot Processing...
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⏳

Screenshot is being captured...

🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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A (IPv4)130.237.198.48
NSns1.su.sens2.su.sens3.su.se
TXT (1)
+1 other TXT record(s)
Show all TXT records
HARICA-VVeDB2qkeMuouQwt29A
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarN/A
RegisteredN/A
ExpiresN/A
Last UpdatedN/A
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)math.se
IssuerHellenic Academic and Research Institutions CA
Valid From2026-07-29
Valid Until2027-02-13 (106 days left)
SANs (2)math.sewww.math.se
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
ServerApache/2.4.66 (Ubuntu)
Content-Typetext/html
Final URLhttps://math.se/
Security headers ?HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
HSTS
Content-Security-Policy
X-Frame-Options
🏠 Hosting ?Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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IP Address130.237.198.48
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score F (1/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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No robots.txt
This site has no robots.txt file, so crawlers may access everything by default.
Sitemap Not found
🔗 Social & Meta Tags Partial
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Titlemath.se
DescriptionMatematik i ASCII-krita på svarta tavlan: siffrorna i π, en torus, Mandelbrotmängden, Lorenzattraktorn, Game of Life, en Galtonbräda, en tesserakt, Fourierepicykler, Pascals triangel och Ulams spiral. Gillar du det du ser? Besök Matematiska institutionen vid Stockholms universitet.
Languagesv
📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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SPFNot set
DMARCNot set
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 17 active 5 for sale 1 available
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.com ●
.net ●
.org ●
.info ●
.io taken
.co taken
.dev ●
.app ●
.me taken
.biz ●
.eu taken
.xyz Available
.fi ●
.se current
.de ●
.uk ●
.fr ●
.nl ●
.es ●
.it ●
.us ●
.ca taken
.com.au ●
.co.uk ●
📡 Uptime Monitor
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Current Status 🟢 Online
HTTP Status 200
Response Time 626ms
Last Checked 2026-10-27 10:30:37.867612
Uptime (30d) 100%