janestreet.com
Home :: Jane Street
Last scanned Aug 3, 2026, 5:00 PM · 17 views
Overall score
Great
Summary
Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving. This website uses Nginx hosted on AWS. SEO is excellent (90/100) and accessibility is fair (70/100). Security scores excellent (90/100) and performance good (75/100). Top issue: Missing canonical link.
Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving.
- United States
- Hosted on AWS
Top issues to fix
4 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
2 issue(s) found
Performance
567 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
+3 overall since Jul 26, 2026
- Overall
- 82
- SEO
- 90
- Security
- 90
- Performance
- 75
- Accessibility
- 70
Organization
Company details published in this site's own structured data.
Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Home :: Jane Street
- Description
- Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=no
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 13.248.239.113
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA |
|
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Amazon
- Subject
- www.janestreet.com
- Valid from
- Sep 10, 2025
- Valid to
- Oct 9, 2026
- Days until expiry
- 67
- SAN domains
- www.janestreet.com, janestreet.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
29 internal · 4 external · 0 broken
Images
153 total · 152 missing alt
Scripts / Styles
21 scripts · 1 stylesheets
JS / CSS size
1.5 MB · 79.8 KB
Page size
63.1 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 30
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://janestreet.com
- Final URL
- https://www.janestreet.com:443/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 566 ms
- HTML size
- 63.1 KB
- Redirect chain
- https://janestreet.com → http://www.janestreet.com/ → https://www.janestreet.com:443/
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Frequently asked questions
- What technology does janestreet.com use?
- janestreet.com is built with Google Analytics, Nginx.
- Is janestreet.com secure (HTTPS)?
- Yes. janestreet.com uses TLS 1.2 with a certificate issued by Amazon, valid until Oct 9, 2026.
- Who hosts janestreet.com?
- janestreet.com is hosted on AWS.
- What is janestreet.com's SEO score?
- janestreet.com scored 90/100 for SEO in the latest analysis (excellent).
- What is janestreet.com's overall website score?
- janestreet.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
- Has janestreet.com's score changed over time?
- janestreet.com's overall score has improved by 3 points (from 79 to 82) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card