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Is tarsnap.com a Scam? Security Check Results - Tarsnap Reviews

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Is tarsnap.com Safe? Security Analysis for Tarsnap

https://tarsnap.com

Check if tarsnap.com is a scam or legitimate. Free security scan and reviews.

TechnologyN/asmall
HTML5CSSJavaScript (minimal, no external libs detected)
Analyzed 10/9/2025Completed 2:25:27 PM
60
Security Score
MEDIUM RISK
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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

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

HTML5CSSJavaScript (minimal, no external libs detected)

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

1

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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

Company:

Tarsnap

Description:

Tarsnap is a secure online backup service for UNIX-like operating systems that emphasizes encryption, deduplication, and client-side security.

Key Services:
Secure encrypted online backupsData deduplicationOpen source client software
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
HTML5CSSJavaScript (minimal, no external libs detected)
Platforms:
UNIX-like OS (targeted platforms)
Performance:

fast

Mobile:

basic

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
75/100
Best Practices:
  • Client-side encryption
  • Open source client code for auditability
  • Bug bounty program

Analytics & Tracking

Tracking Level:minimal
Privacy Compliance:poor

Advertising & Marketing

Transparency Level:poor

Website Quality Assessment

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

Key Observations

1

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

15/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections Unlock the full report to read the complete fix.

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks Unlock the full report to read the complete fix.

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing Unlock the full report to read the complete fix.

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load Unlock the full report to read the complete fix.

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended) Unlock the full report to read the complete fix.

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests Unlock the full report to read the complete fix.

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs Unlock the full report to read the complete fix.

Sensitive data may be cached

LOW

Cache-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

50/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy Unlock the full report to read the complete fix.

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage Unlock the full report to read the complete fix.

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies Unlock the full report to read the complete fix.

GDPR Compliance Analysis

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

🛡️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

28/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.

No security contact information

HIGH

NIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.

Critical sector without clear security compliance

HIGH

Detected 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

60/100
Score

DMARC not enforcing

MEDIUM

DMARC policy is set to "none" Unlock the full report to read the complete fix.

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails Unlock the full report to read the complete fix.

Strict DMARC Alignment

LOW

Strict alignment may cause legitimate emails to fail Unlock the full report to read the complete fix.

No BIMI Record

LOW

BIMI displays brand logos in email clients Unlock the full report to read the complete fix.

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery Unlock the full report to read the complete fix.

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues Unlock the full report to read the complete fix.

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 a ip4:54.86.246.204/32 include:amazonses.com ~all
DNS Lookups:2/10
Policy:~all
DMARC Details
Policy:none
Subdomain Policy:none
Aggregate Reports:postmaster@tarsnap.com
Forensic Reports:postmaster@tarsnap.com

🏆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

75/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 72 days Unlock the full report to read the complete fix.

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak Unlock the full report to read the complete fix.

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints Unlock the full report to read the complete fix.

Certificate Details

Subject:www.tarsnap.com
Issuer:E8
Valid Until:12/21/2025 (72 days)
SANs:kivaloo.com, kivaloo.net, kivaloo.org +10 more

OCSP Status

OCSP Stapling Disabled

📊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

80/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain Unlock the full report to read the complete fix.

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification Unlock the full report to read the complete fix.

DMARC Policy Set to None

LOW

DMARC is configured but not enforcing any policy Unlock the full report to read the complete fix.

Domain Registration Details

Domain Age
18 years(mature)
Expiry Risk
low(255 days)
Protection Level
basicDNSSEC OFF

DNS Records

A Records:52.70.55.60
AAAA Records:2600:1f18:6306:f601:2191:8fa9:677c:d6d3
Name Servers:
ns-1227.awsdns-25.org
ns-1851.awsdns-39.co.uk
ns-64.awsdns-08.com
ns-995.awsdns-60.net
MX Records:
5: mail.tarsnap.com

DNSSEC Status

DNSSEC Not Enabled

SPF Analysis

SPF Record:
v=spf1 a ip4:54.86.246.204/32 include:amazonses.com ~all

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

100/100
Score

Good Network Security Posture

LOW

No 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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⭐ Verified Community Reviews

What others say about tarsnap.com

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Community rating

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