determinate.systems
Determinate Systems
Last scanned Jul 26, 2026, 1:49 PM · 1 view
Overall score
Excellent
Summary
The secure software supply chain for critical infrastructure. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: robots.txt not found.
The secure software supply chain for critical infrastructure.
Top issues to fix
4 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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
2 issue(s) found
Performance
281 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
The secure software supply chain for critical infrastructure.
Meta tags
- Title
- Determinate Systems
- Description
- The secure software supply chain for critical infrastructure.
- Canonical
- https://determinate.systems/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Netlify
- 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
- determinate.systems
- Valid from
- Jun 10, 2026
- Valid to
- Sep 8, 2026
- Days until expiry
- 41
- SAN domains
- determinate.systems, www.determinate.systems
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 18 · H3 0
Links
37 internal · 23 external · 20 broken
Images
20 total · 0 missing alt
Scripts / Styles
4 scripts · 1 stylesheets
JS / CSS size
523 B · 0 B
Page size
108 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://determinate.systems
- Final URL
- https://determinate.systems
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 279 ms
- HTML size
- 108 KB
- Redirect chain
- https://determinate.systems
See something wrong on this report? Request a correction
Frequently asked questions
- What technology does determinate.systems use?
- We did not detect any specific technologies for determinate.systems in the latest scan.
- Is determinate.systems secure (HTTPS)?
- Yes. determinate.systems uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 8, 2026.
- Who hosts determinate.systems?
- Hosting provider information for determinate.systems is not available yet.
- What is determinate.systems's SEO score?
- determinate.systems scored 90/100 for SEO in the latest analysis (excellent).
- What is determinate.systems's overall website score?
- determinate.systems has an overall SiteGraph score of 95/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card