Is heynote.com Safe? Security Analysis for Jonatan Heyman
https://heynote.comCheck if heynote.com is a scam or legitimate. Free security scan and reviews.

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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
Heynote is a specialized software tool designed as a scratchpad for developers, enabling efficient note-taking with features such as block-based text buffers, syntax highlighting, and calculator functionality. The produc… Unlock the full Guard report to read the complete analysis.
Detected Technologies
Keep heynote.com under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
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
Cancel anytime. Alerts sent to the contacts you choose. Unlock the full report to view historical timelines and alerts.
Security Headers
8 findings
15/100
GDPR Compliance
4 findings
35/100
NIS2 Compliance
9 findings
2/100
Email Security
4 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.
Business Intelligence
Market & Strategic Analysis
Heynote operates in the technology sector as a small-scale software provider focusing on developer productivity tools. Its business model revolves around open source distribution and community engagement via GitHub. The product's market position is niche, appealing to developers and power users who require flexible note-taking and scratchpad capabilities. The company behind Heynote is an individual or small entity named Jonatan Heyman, with no parent or subsidiary companies identified. The project has a history dating back to 2012, indicating maturity and ongoing development. The partnership ecosystem is minimal, with no explicit partners or subsidiaries. Revenue streams are not disclosed but likely derive from voluntary contributions or indirect monetization. Growth indicators include regular software releases and active GitHub presence. Strategic observations suggest opportunities to improve compliance and security posture to enhance user trust and adoption.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a moderate security maturity level. HTTPS is enforced, and the domain is protected against unauthorized transfers, which are positive indicators. However, the absence of DNSSEC reduces DNS security. No security headers such as Content-Security-Policy or X-Frame-Options were detected, which could expose the site to certain web-based attacks. There is no published security policy, incident response plan, or vulnerability disclosure mechanism, limiting transparency and preparedness for security incidents. The use of Google Analytics without visible cookie consent raises privacy compliance concerns under GDPR. No exposed sensitive data or vulnerable libraries were identified in the provided content. Overall, the security posture is functional but could be significantly improved by adopting best practices in headers, policies, and user privacy protections.
Strategic Recommendations
Priority Actions for Security Improvement
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✨Observations
AI-powered comprehensive website and business analysis.
A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.
AI-Enhanced Website Analysis
Business Insights
Jonatan Heyman
Heynote is a dedicated scratchpad application designed primarily for developers, offering persistent text buffers divided into blocks with syntax highlighting, auto-formatting, calculator scratchpads, and multiple note buffers organized into directories.
good
consistent
Technical Stack
fast
basic
basic
basic
Security Assessment
- HTTPS enforced
- Domain status clientTransferProhibited
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a niche developer tool with clear focus and consistent branding.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections Unlock the full report to read the complete fix.
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks Unlock the full report to read the complete fix.
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing Unlock the full report to read the complete fix.
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load Unlock the full report to read the complete fix.
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended) Unlock the full report to read the complete fix.
Missing Referrer-Policy header
LOWControls referrer information sent with requests Unlock the full report to read the complete fix.
Missing Permissions-Policy header
MEDIUMControls browser features and APIs Unlock the full report to read the complete fix.
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
Preview of GDPR checkpoints is visible. Unlock to reveal full evidence, policy excerpts, and DPIA guidance.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy Unlock the full report to read the complete fix.
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage Unlock the full report to read the complete fix.
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies Unlock the full report to read the complete fix.
Third-party services without privacy policy
HIGHDetected services: Google Analytics Unlock the full report to read the complete fix.
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.
No security contact information
HIGHNIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.
Critical sector without clear security compliance
HIGHDetected sectors: energy, transport, digital Unlock the full report to read the complete fix.
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails Unlock the full report to read the complete fix.
No BIMI Record
LOWBIMI displays brand logos in email clients Unlock the full report to read the complete fix.
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery Unlock the full report to read the complete fix.
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues Unlock the full report to read the complete fix.
SPF Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1 Unlock the full report to read the complete fix.
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy Unlock the full report to read the complete fix.
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs Unlock the full report to read the complete fix.
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 30 days Unlock the full report to read the complete fix.
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints Unlock the full report to read the complete fix.
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
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DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain Unlock the full report to read the complete fix.
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found Unlock the full report to read the complete fix.
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification Unlock the full report to read the complete fix.
Weak SPF Policy
HIGHSPF record has permissive policy allowing any server to send email Unlock the full report to read the complete fix.
No DMARC Record
MEDIUMDMARC policy not configured Unlock the full report to read the complete fix.
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports Unlock the full report to read the complete fix.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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