stephenwolfram.com
Stephen Wolfram: Official Website
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Great
Summary
Official website of Stephen Wolfram: Founder & CEO of Wolfram Research; creator of Mathematica, Wolfram|Alpha & the Wolfram Language; author of A New Kind of Science. This website uses jQuery. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Official website of Stephen Wolfram: Founder & CEO of Wolfram Research; creator of Mathematica, Wolfram|Alpha & the Wolfram Language; author of A New Kind of Science
Top issues to fix
9 issues found · 1 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
234 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Official website of Stephen Wolfram: Founder & CEO of Wolfram Research; creator of Mathematica, Wolfram|Alpha & the Wolfram Language; author of A New Kind of Science
Meta tags
- Title
- Stephen Wolfram: Official Website
- Description
- Official website of Stephen Wolfram: Founder & CEO of Wolfram Research; creator of Mathematica, Wolfram|Alpha & the Wolfram Language; author of A New Kind of Science
- Canonical
- https://www.stephenwolfram.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://stephenwolfram.com/manifest.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 1.3
- Issuer
- Let's Encrypt
- Subject
- stephenwolfram.com
- Valid from
- Jul 22, 2026
- Valid to
- Oct 20, 2026
- Days until expiry
- 83
- SAN domains
- *.stephenwolfram.com, stephenwolfram.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 2 · H2 5 · H3 0
Links
7 internal · 32 external · 20 broken
Images
31 total · 0 missing alt
Scripts / Styles
11 scripts · 4 stylesheets
JS / CSS size
0 B · 0 B
Page size
17.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Multiple H1 headings found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://stephenwolfram.com
- Final URL
- https://stephenwolfram.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 234 ms
- HTML size
- 17.6 KB
- Redirect chain
- https://stephenwolfram.com
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Frequently asked questions
- What technology does stephenwolfram.com use?
- stephenwolfram.com is built with jQuery.
- Is stephenwolfram.com secure (HTTPS)?
- Yes. stephenwolfram.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 20, 2026.
- Who hosts stephenwolfram.com?
- Hosting provider information for stephenwolfram.com is not available yet.
- What is stephenwolfram.com's SEO score?
- stephenwolfram.com scored 80/100 for SEO in the latest analysis (great).
- What is stephenwolfram.com's overall website score?
- stephenwolfram.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card