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Is joinmastodon.org a Scam? Security Check Results - Mastodon gGmbH

joinmastodon.org Security Report Summary

joinmastodon.org received a security score of 73 out of 100 in Guard's comprehensive security analysis, classified as "Moderate Risk". This report covers Mastodon gGmbH's website security posture. Mastodon gGmbH operates in the Technology industry in Germany.

Mastodon gGmbH operates the joinmastodon.org website, promoting Mastodon, a decentralized, free, and open-source social media platform. The organization is a non-profit entity focused on empowering users with control over their social media experience, free from corporate influence and advertising. The platform supports federation across independent servers, enabling a global social network built on open web protocols. The website is professionally designed, mobile-optimized, and provides comprehensive information about the platform, its features, and community testimonials. Technically, the site uses modern web technologies including Next.js and React, hosted on Exoscale infrastructure, and employs HTTPS with good SSL configuration. Security posture is solid but could be improved by enabling DNSSEC and adding security headers. Privacy compliance is strong with a clear privacy policy, though cookie consent mechanisms and terms of service are not explicitly found. Overall, the site reflects a mature, trustworthy, and community-driven project with a high level of professionalism and transparency.

The security scan identified 24 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: React, Next.js, JavaScript, WebP images, SVG graphics.

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 joinmastodon.org Safe? Security Analysis for Mastodon gGmbH

https://joinmastodon.org

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TechnologyGermanysmall
ReactNext.jsJavaScriptWebP imagesSVG graphics
Analyzed 10/7/2025Completed 7:47:16 PM5mo ago
73
Security Score
MEDIUM RISK

Above Technology avg (72)

10,000+

Domains scanned

500+

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AI Summary

Mastodon gGmbH operates the joinmastodon.org website, promoting Mastodon, a decentralized, free, and open-source social media platform. The organization is a non-profit entity focused on empowering users with control over their social media experience, free from corporate influence and advertising. The platform supports federation across independent servers, enabling a global social network built on open web protocols. The website is professionally designed, mobile-optimized, and provides comprehensive information about the platform, its features, and community testimonials. Technically, the site uses modern web technologies including Next.js and React, hosted on Exoscale infrastructure, and employs HTTPS with good SSL configuration. Security posture is solid but could be improved by enabling DNSSEC and adding security headers. Privacy compliance is strong with a clear privacy policy, though cookie consent mechanisms and terms of service are not explicitly found. Overall, the site reflects a mature, trustworthy, and community-driven project with a high level of professionalism and transparency.

Detected Technologies

ReactNext.jsJavaScriptWebP imagesSVG graphics

7 urgent findings need attention

7 high

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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

4 findings

65/100

GDPR Compliance

4 findings

53/100

NIS2 Compliance

8 findings

17/100

Email Security

3 findings

85/100

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

Mastodon holds a leading position in the decentralized social media market, leveraging its open-source model and non-profit status to attract a dedicated user base and contributors. Its business model relies on donations and sponsorships, avoiding advertising and data monetization. The platform targets privacy-conscious users, institutions seeking self-hosting solutions, and developers interested in federated social networking. The ecosystem includes partnerships with hosting providers and sponsors, enhancing sustainability. Growth indicators include active community engagement, multilingual support, and continuous development. The company maintains transparency and independence, which strengthens its credibility and appeal in the competitive social media landscape.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a good security maturity level with enforced HTTPS and domain transfer protection. However, the absence of DNSSEC and security headers like Content-Security-Policy and Strict-Transport-Security represents areas for improvement. No vulnerabilities or exposed sensitive data were detected in the content. The lack of a public security policy or incident response contact limits transparency in security governance. Privacy practices align with GDPR requirements, supported by a comprehensive privacy policy. Incident response readiness and vulnerability disclosure mechanisms are not publicly documented, which could be enhanced to improve trust and compliance.

Strategic Recommendations

Priority Actions for Security Improvement

1

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

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

Mastodon gGmbH

Description:

Mastodon is a free and open-source decentralized social media platform that empowers users to control their own timelines without ads or algorithms. It is developed by a non-profit organization and supports federated communication across independent servers.

Key Services:
Decentralized social networkingOpen-source softwareServer hosting and federationCommunity moderation tools
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
ReactNext.jsJavaScriptWebP imagesSVG graphics
Frameworks:
Next.js
Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:
85/100
Best Practices:
  • HTTPS enforced
  • Domain status clientTransferProhibited
  • No ads or tracking scripts detected

Analytics & Tracking

Services:
Datadog
Tracking Level:minimal
Privacy Compliance:good

Advertising & Marketing

Transparency Level:excellent

Website Quality Assessment

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

Key Observations

1

Website is fully accessible with no blocking or WAF challenges.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

65/100
Score

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Weak Referrer-Policy configuration

LOW

Current value: "origin-when-cross-origin"

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
emailphone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

17/100
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

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📧Email Security

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

Email Security

SPF, DKIM, and DMARC validation

85/100
Score

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.google.com include:helpscoutemail.com ~all
DNS Lookups:2/10
Policy:~all
DKIM Selectors Found
Selector:google(1416-bit rsa)
DMARC Details
Policy:quarantine
Subdomain Policy:quarantine
Aggregate Reports:re+o0lrkfqmq6a@dmarc.postmarkapp.com

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

95/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 50 days

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:joinmastodon.org
Issuer:R13
Valid Until:11/27/2025 (50 days)
SANs:api.joinmastodon.org, joinmastodon.org, proxy.joinmastodon.org +1 more

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

85/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

Domain Registration Details

Domain Age
8 years(mature)
Expiry Risk
none(1105 days)
Protection Level
basicDNSSEC OFF

DNS Records

A Records:151.101.65.91, 151.101.129.91, 151.101.193.91, 151.101.1.91
AAAA Records:2a04:4e42:600::347, 2a04:4e42:200::347, 2a04:4e42:400::347, 2a04:4e42:e00::347, 2a04:4e42:800::347, 2a04:4e42:c00::347, 2a04:4e42::347, 2a04:4e42:a00::347
Name Servers:
ns1.exoscale.ch
ns1.exoscale.com
ns1.exoscale.io
ns1.exoscale.net
MX Records:
1: smtp.google.com
SOA:Serial: 1673628181, TTL: 300s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:81ms

SPF Analysis

SPF Record:
v=spf1 include:_spf.google.com include:helpscoutemail.com ~all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

How does joinmastodon.org compare?

See how joinmastodon.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 is built on a modern React and Next.js framework, ensuring fast performance and excellent mobile responsiveness. Hosting is managed via Exoscale, with CDN support from Fastly indicated by sponsor logos. The site uses optimized images (WebP, SVG) and preloads critical assets for performance. Accessibility features such as skip links and ARIA roles are present, enhancing usability. SEO is well addressed with meta tags, Open Graph, and hreflang attributes for multilingual support. No CMS is detected, indicating a custom-built solution. The technical stack is current and well-maintained, with opportunities to improve security headers and DNS configuration.
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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

Domainjoinmastodon.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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