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Is postmarketos.org a Scam? Security Check Results - postmarketOS

postmarketos.org Security Report Summary

postmarketos.org received a security score of 51 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers postmarketOS's website security posture. postmarketOS operates in the Technology industry in Netherlands.

postmarketOS is an open-source Linux distribution project focused on extending the life cycle of mobile devices by providing a sustainable and privacy-respecting operating system. The project is well-positioned within the Linux mobile ecosystem, collaborating closely with upstream projects such as Alpine Linux, GNOME, KDE, and others. The website reflects a mature, community-driven initiative with excellent content quality and clear messaging aimed at Linux enthusiasts and developers interested in mobile Linux solutions. Technically, the website is modern, fast, and mobile-optimized, though it lacks some advanced security headers and cookie consent mechanisms. Security posture is moderate with room for improvement in formal policies and technical controls. Overall, the domain registration and WHOIS data are consistent and trustworthy, supporting the legitimacy of the project.

The security scan identified 33 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: Linux kernel, Alpine Linux, HTML5, CSS3, SVG, WebP images.

About this security scan

Guard performs automated security assessments of websites by analyzing SSL/TLS certificates, HTTP security headers, DNS configuration, email authentication protocols (SPF, DKIM, DMARC), GDPR compliance indicators, NIS2 directive compliance, network exposure, and AI-powered business intelligence. Each report provides domain-specific findings, risk scores, and actionable recommendations.

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Is postmarketos.org Safe? Security Analysis for postmarketOS

https://postmarketos.org

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TechnologyNetherlandssmall
Linux kernelAlpine LinuxHTML5CSS3SVG+1 more
Analyzed 7/22/2025Completed 2:26:57 PM8mo ago
51
Security Score
MEDIUM RISK

Below Technology avg (72)

10,000+

Domains scanned

500+

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AI Summary

postmarketOS is an open-source Linux distribution project focused on extending the life cycle of mobile devices by providing a sustainable and privacy-respecting operating system. The project is well-positioned within the Linux mobile ecosystem, collaborating closely with upstream projects such as Alpine Linux, GNOME, KDE, and others. The website reflects a mature, community-driven initiative with excellent content quality and clear messaging aimed at Linux enthusiasts and developers interested in mobile Linux solutions. Technically, the website is modern, fast, and mobile-optimized, though it lacks some advanced security headers and cookie consent mechanisms. Security posture is moderate with room for improvement in formal policies and technical controls. Overall, the domain registration and WHOIS data are consistent and trustworthy, supporting the legitimacy of the project.

Detected Technologies

Linux kernelAlpine LinuxHTML5CSS3SVGWebP images

11 urgent findings need attention

11 high

  • + 3 more findings in the full report below
Continuous monitoring

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Security drift alerts

Risk score drops, new high-severity issues, and header hardening gaps

Compliance watch

GDPR / NIS2 posture changes with governance evidence snapshots

Infrastructure surface

Unexpected open services, SSL expiry, DNS & email authentication changes

Content & tracker intelligence

Marketing tech shifts, analytics drift, and AI recommendation updates

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Security Headers

8 findings

15/100

GDPR Compliance

4 findings

53/100

NIS2 Compliance

9 findings

2/100

Email Security

5 findings

65/100

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

postmarketOS operates in the niche technology sector of mobile Linux distributions, targeting users who value device longevity, privacy, and open-source software. Its business model is community and contribution-driven rather than commercial. The project benefits from strong partnerships with upstream Linux projects and user interface providers, enhancing its ecosystem integration. The absence of commercial advertising and tracking tools aligns with its privacy-focused mission. Growth indicators include ongoing kernel and hardware enablement work and active community engagement. The project’s transparency and open-source nature foster trust and credibility within its target audience.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a basic to moderate security maturity level. HTTPS is enforced, but no advanced security headers are detected. There is no published security policy, incident response plan, or vulnerability disclosure mechanism, which limits transparency in security management. No forms or data collection points reduce attack surface, but the lack of DNSSEC and security.txt are areas for improvement. The project’s open-source nature and upstream contributions indicate a positive security culture, but formalizing policies and technical controls would enhance resilience and compliance.

Strategic Recommendations

Priority Actions for Security Improvement

1

Enable DNSSEC on the domain to improve DNS security and prevent spoofing.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

postmarketOS

Description:

postmarketOS develops free and open-source software to extend the life of consumer electronics by providing a Linux distribution for mobile devices and beyond, aiming for a 10 year life-cycle for smartphones.

Key Services:
Linux distribution for mobile devicesHardware enablement and kernel developmentIntegration with multiple user interfaces (GNOME, KDE, Phosh, SXMO)Community support and development contributions
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
Linux kernelAlpine LinuxHTML5CSS3SVGWebP images
Platforms:
Web
Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:
70/100
Best Practices:
  • HTTPS enforced (implied by canonical URL https://postmarketos.org/)
  • No inline scripts detected
  • No forms collecting sensitive data

Analytics & Tracking

Tracking Level:minimal
Privacy Compliance:good

Advertising & Marketing

Transparency Level:poor

Website Quality Assessment

Design Quality:excellent
User Experience:excellent
Content Relevance:excellent
Navigation Clarity:excellent
Professionalism:excellent
Trustworthiness:high

Key Observations

1

Website is a well-maintained open-source project site focused on Linux mobile OS.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

15/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

53/100
Score

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

No Data Protection Officer mentioned

LOW

Large organizations may need to designate a DPO under GDPR

Privacy policy may not be GDPR compliant

MEDIUM

Privacy policy lacks explicit GDPR compliance elements

GDPR Compliance Analysis

Privacy Policy85% confidence
Cookie Policy0% confidence
Contact Information Found90% confidence
phone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

2/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

Critical sector without clear security compliance

HIGH

Detected sectors: energy, transport, health, digital

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📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

65/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

DMARC Partial Enforcement

LOW

DMARC only applies to 50% of messages

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 include:spf.migadu.com include:_spf.osuosl.org -all
DNS Lookups:2/10
Policy:-all
DMARC Details
Policy:quarantine(50% enforcement)
Aggregate Reports:re+dk1uuul1zqs@dmarc.postmarkapp.com

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

75/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 89 days

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:postmarketos.org
Issuer:E6
Valid Until:10/20/2025 (89 days)
SANs:*.postmarketos.org, postmarketos.org

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

75/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

Domain Transfer Lock Not Enabled

MEDIUM

Domain can be transferred without authorization

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

Domain Registration Details

Domain Age
8 years(mature)
Expiry Risk
low(67 days)
Protection Level
noneDNSSEC OFF
Suspicious Indicators Detected
  • No domain protection locks enabled

DNS Records

A Records:95.216.1.254
AAAA Records:2a01:4f9:2a:231::2
Name Servers:
ns1.luadns.net
ns2.luadns.net
ns3.luadns.net
ns4.luadns.netDNS only
MX Records:
10: aspmx1.migadu.com
20: aspmx2.migadu.com
SOA:Serial: 1753162239, TTL: 3600s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:48ms

SPF Analysis

SPF Record:
v=spf1 include:spf.migadu.com include:_spf.osuosl.org -all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

40/100
Score

Service Exposed: SSH

MEDIUM

Port 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced

How does postmarketos.org compare?

See how postmarketos.org stacks up against similar websites in the same industry.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website uses a clean, modern tech stack with HTML5, CSS3, SVG, and WebP images optimized for performance and mobile responsiveness. Hosting and DNS are managed by reputable providers, though DNSSEC is not enabled. The site lacks a CMS indication, suggesting a static or custom-built site. SEO and accessibility are well addressed with proper meta tags and responsive design. No analytics or tracking scripts were detected, aligning with privacy goals. The absence of forms reduces complexity and security risks but also limits direct user engagement channels. Overall, the technical implementation supports a fast, secure, and user-friendly experience with opportunities to enhance security controls and compliance features.
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Marketing Intelligence

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Plan Comparison

FeaturePDF ReportMarketing+
Full security analysis
Professional PDF export
Email delivery
Lifetime access + unlock code
Contact emails & phones
Marketing outreach data

Already purchased?

Order summary

Domainpostmarketos.org
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

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