grapheneos.org
GrapheneOS: the private and secure mobile OS
Last scanned Aug 2, 2026, 7:00 AM · 19 views
Overall score
Excellent
Summary
GrapheneOS is a security and privacy focused mobile OS with Android app compatibility. This website uses Nginx. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
GrapheneOS is a security and privacy focused mobile OS with Android app compatibility.
Top issues to fix
5 issues found · 1 high priority
TLS certificate expires in 6 days
SecurityRenew now (or enable auto-renewal) — an expired certificate blocks visitors with a full-page browser warning.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
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
3 issue(s) found
Performance
62 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 90
- SEO
- 80
- Security
- 85
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
GrapheneOS is a security and privacy focused mobile OS with Android app compatibility.
Meta tags
- Title
- GrapheneOS: the private and secure mobile OS
- Description
- GrapheneOS is a security and privacy focused mobile OS with Android app compatibility.
- Canonical
- https://grapheneos.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1,viewport-fit=cover
- Robots meta
- Manifest
- https://grapheneos.org/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
- Valid from
- Aug 1, 2026
- Valid to
- Aug 8, 2026
- Days until expiry
- 6
- SAN domains
- grapheneos.app, grapheneos.ca, grapheneos.com, grapheneos.dev, grapheneos.foundation, grapheneos.info, grapheneos.net, grapheneos.org, grapheneos.ovh, grapheneos.page, vanadium.app, www.grapheneos.app, www.grapheneos.ca, www.grapheneos.com, www.grapheneos.dev, www.grapheneos.foundation, www.grapheneos.info, www.grapheneos.net, www.grapheneos.org, www.grapheneos.ovh, www.grapheneos.page, www.vanadium.app
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 3 · H3 0
Links
19 internal · 9 external · 20 broken
Images
4 total · 0 missing alt
Scripts / Styles
1 scripts · 1 stylesheets
JS / CSS size
0 B · 0 B
Page size
6.8 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://grapheneos.org
- Final URL
- https://grapheneos.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 62 ms
- HTML size
- 6.8 KB
- Redirect chain
- https://grapheneos.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does grapheneos.org use?
- grapheneos.org is built with Nginx.
- Is grapheneos.org secure (HTTPS)?
- Yes. grapheneos.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 8, 2026.
- Who hosts grapheneos.org?
- Hosting provider information for grapheneos.org is not available yet.
- What is grapheneos.org's SEO score?
- grapheneos.org scored 80/100 for SEO in the latest analysis (great).
- What is grapheneos.org's overall website score?
- grapheneos.org has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has grapheneos.org's score changed over time?
- grapheneos.org's overall score has declined by 3 points (from 93 to 90) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card