postmarketos.org
postmarketOS // real Linux distribution for phones
Last scanned Aug 3, 2026, 1:00 PM · 5 views
Overall score
Great
Summary
Aiming for a 10 year life-cycle for smartphones. This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Aiming for a 10 year life-cycle for smartphones
Top issues to fix
9 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
154 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 84
- SEO
- 75
- Security
- 65
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Aiming for a 10 year life-cycle for smartphones
Meta tags
- Title
- postmarketOS // real Linux distribution for phones
- Description
- Aiming for a 10 year life-cycle for smartphones
- Canonical
- https://postmarketos.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- all
- Manifest
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
- *.postmarketos.org
- Valid from
- Jul 17, 2026
- Valid to
- Oct 15, 2026
- Days until expiry
- 72
- SAN domains
- *.postmarketos.org, postmarketos.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 0
Links
14 internal · 22 external · 20 broken
Images
6 total · 0 missing alt
Scripts / Styles
0 scripts · 4 stylesheets
JS / CSS size
0 B · 0 B
Page size
12.6 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
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://postmarketos.org
- Final URL
- https://postmarketos.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 154 ms
- HTML size
- 12.6 KB
- Redirect chain
- https://postmarketos.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does postmarketos.org use?
- postmarketos.org is built with Nginx.
- Is postmarketos.org secure (HTTPS)?
- Yes. postmarketos.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 15, 2026.
- Who hosts postmarketos.org?
- Hosting provider information for postmarketos.org is not available yet.
- What is postmarketos.org's SEO score?
- postmarketos.org scored 75/100 for SEO in the latest analysis (fair).
- What is postmarketos.org's overall website score?
- postmarketos.org has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
- Has postmarketos.org's score changed over time?
- postmarketos.org's overall score has declined by 1 point (from 85 to 84) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card