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

Unlock the complete security report for tarsnap.com
Get full access to AI recommendations, compliance evidence, vulnerability remediation steps, and downloadable PDF reports. Upgrade once for lifetime access to this scan.
Full Report Access
All modules, AI insights, PDF download
Marketing Intelligence
Contact emails, phone numbers & warm leads
How it works
- Enter your email to receive the unlocked report.
- Complete the secure EveryPay checkout (cards & local methods supported).
- You’ll receive an email with your unique unlock code and the PDF export.
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
AI Summary
Tarsnap is a specialized online backup service targeting security-conscious users who operate UNIX-like systems. The company emphasizes client-side encryption, data deduplication, and transparency through open source cli… Unlock the full Guard report to read the complete analysis.
Detected Technologies
Security Headers
8 findings
15/100
GDPR Compliance
3 findings
50/100
NIS2 Compliance
6 findings
28/100
Email Security
6 findings
60/100
🧠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
Tarsnap occupies a niche market focused on secure online backups for UNIX-like systems, appealing to technically savvy and security-conscious users. Their competitive advantage lies in strong encryption, open source transparency, and efficient deduplication technology. The prepaid, usage-based pricing model aligns well with cost-conscious customers who want to pay only for what they use. The company maintains a clear focus on security and technical excellence, supported by an active changelog and bug bounty program. However, the lack of visible company registration data and contact information may limit broader market trust. The absence of marketing or advertising tools suggests a reliance on organic growth and reputation within the security community.
Security Posture Analysis
Comprehensive Security Assessment
Tarsnap demonstrates a mature security posture through client-side encryption, open source client software, and a bug bounty program. These practices reduce risks related to data breaches and unauthorized access. However, the website lacks visible security headers and explicit privacy or cookie policies, which are important for compliance and user trust. The missing WHOIS data is a concern for domain legitimacy verification. No vulnerabilities or exposed sensitive data were detected in the website content. Incident response contact information is not provided, which could delay handling of security issues. Overall, the security posture is strong in product design but could improve in web presence and compliance transparency.
Strategic Recommendations
Priority Actions for Security Improvement
Upgrade to the full Guard report to access tailored remediation steps.
✨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
Tarsnap
Tarsnap is a secure online backup service for UNIX-like operating systems that emphasizes encryption, deduplication, and client-side security.
good
consistent
Technical Stack
fast
basic
basic
good
Security Assessment
- Client-side encryption
- Open source client code for auditability
- Bug bounty program
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
🛡️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.
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 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 security contact information
HIGHNIS2 requires clear incident reporting channels 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: 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
DMARC not enforcing
MEDIUMDMARC policy is set to "none" Unlock the full report to read the complete fix.
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails Unlock the full report to read the complete fix.
Strict DMARC Alignment
LOWStrict alignment may cause legitimate emails to fail 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
DMARC 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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 72 days Unlock the full report to read the complete fix.
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak Unlock the full report to read the complete fix.
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints Unlock the full report to read the complete fix.
Certificate Details
OCSP Status
📊DNS Health
DNS configuration and security assessment.
Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.
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.
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification Unlock the full report to read the complete fix.
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy Unlock the full report to read the complete fix.
Domain Registration Details
DNS Records
DNSSEC Status
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
How did we do?
Your feedback directly shapes our roadmap. Rate the quality of this report, leave an optional comment, and let us know if you want our security specialists to follow up.
What others say about tarsnap.com
Share your experience to help others make informed decisions. We verify every review by email and publish it once our moderation team approves it.
Community rating
—out of 5
0 reviews published