Is hackmd.io Safe? Security Analysis for HackMD
https://hackmd.ioCheck if hackmd.io is a scam or legitimate. Free security scan and reviews.
Above Technology avg (72)
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
HackMD is a collaborative Markdown editor platform founded in 2015 and based in Taiwan. It offers real-time document editing and sharing capabilities targeted at teams, developers, researchers, educators, and communities. The platform supports integrations such as GitHub and provides features like templates, book mode, and UML graph visualization, positioning itself as a versatile tool for knowledge sharing and collaboration. The business model is primarily freemium SaaS with paid tiers for teams and enterprises, serving a global user base including notable organizations like the Ethereum Foundation. Technically, HackMD employs modern web technologies including React and Next.js, hosted on AWS infrastructure. The website demonstrates excellent performance, mobile optimization, and SEO practices. Security is robust with HTTPS enforcement, CSRF protections, and domain transfer restrictions, although DNSSEC is not enabled. Privacy and terms policies are comprehensive and GDPR compliant, with active use of analytics tools such as Google Tag Manager and Plausible Analytics. Security posture is strong with no detected vulnerabilities or exposed sensitive data. However, explicit incident response contacts and vulnerability disclosure mechanisms are not publicly evident, representing an area for improvement. The WHOIS data is transparent and consistent with the business identity, supporting legitimacy and trustworthiness. Overall, HackMD presents a professional, secure, and user-friendly platform with a strong market position in collaborative documentation tools. Strategic recommendations include enabling DNSSEC, publishing explicit security headers, and establishing clear incident response and vulnerability disclosure channels to further enhance security and trust.
Detected Technologies
6 urgent findings need attention
6 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
60/100
GDPR Compliance
3 findings
68/100
NIS2 Compliance
8 findings
17/100
Email Security
4 findings
80/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
HackMD occupies a competitive niche in the collaborative documentation and Markdown editor market, leveraging real-time editing and integrations to attract a diverse audience from startups to established institutions. Its freemium SaaS model allows broad adoption with monetization through team and enterprise plans. The company benefits from strong community engagement and endorsements from reputable organizations, enhancing its market credibility. The partnership ecosystem includes social media channels and community platforms like Discord. Growth indicators include a large user base (1 million users, 30k teams) and global reach (170 countries). The company maintains consistent branding and professional content, supporting sustained market presence.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with HTTPS enforced, clientTransferProhibited domain status, and CSRF tokens in forms. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. Privacy policies and cookie consent mechanisms are in place, indicating compliance with GDPR. However, the absence of explicit incident response contact information and a security.txt file suggests room for improvement in vulnerability management and incident handling transparency. DNSSEC is not enabled, which could be a potential DNS security enhancement. Overall, the security culture appears proactive but could benefit from formalized disclosure and response processes.
Strategic Recommendations
Priority Actions for Security Improvement
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
HackMD
HackMD provides a real-time collaborative Markdown editor for teams and individuals to create, share, and edit documents seamlessly.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- ClientTransferProhibited domain status
- CSRF tokens in forms
- No exposed sensitive data in HTML
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and no blocking.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Weak Referrer-Policy configuration
LOWCurrent value: "same-origin"
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider 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
Complex SPF record
LOWToo many include statements can cause lookup limits
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does hackmd.io compare?
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🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
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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