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Is dnssec.cz a Scam? Security Check Results - CZ.NIC, z. s. p. o.

dnssec.cz Security Report Summary

dnssec.cz received a security score of 57 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers CZ.NIC, z. s. p. o.'s website security posture. CZ.NIC, z. s. p. o. operates in the Technology industry in Czech Republic.

The website www.dnssec.cz is operated by CZ.NIC, the official Czech domain registry association responsible for managing the .CZ top-level domain and promoting DNS security technologies such as DNSSEC. The site provides educational content about DNSSEC, tools to test DNSSEC protection on user connections and domains, and contact information for support. It targets Czech internet users, domain owners, and ISPs, positioning itself as an authoritative source on DNS security in the Czech Republic. Technically, the site uses a straightforward technology stack including jQuery and custom JavaScript, with CSS for styling. The site is accessible, uses HTTPS, and embeds multimedia content such as YouTube videos. However, it lacks advanced security headers and comprehensive privacy or cookie policies. Mobile optimization and accessibility are basic but functional. From a security perspective, the site demonstrates good practices by using HTTPS and avoiding exposed sensitive data. However, the absence of security headers and incident response information limits its security maturity. The missing WHOIS data for the domain reduces transparency and trustworthiness from a registration standpoint, although the CZ.NIC branding and contact details support legitimacy. Overall, the site is a reliable educational resource on DNSSEC with moderate technical sophistication and a good business credibility profile. Improvements in privacy compliance, security headers, and WHOIS transparency would enhance trust and security posture.

The security scan identified 31 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: jQuery 3.2.1, JavaScript, CSS, HTML5.

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 dnssec.cz Safe? Security Analysis for CZ.NIC, z. s. p. o.

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TechnologyCzech Republicmedium
jQuery 3.2.1JavaScriptCSSHTML5
Analyzed 10/17/2025Completed 4:52:57 PM5mo ago
57
Security Score
MEDIUM RISK

Below Technology avg (72)

10,000+

Domains scanned

500+

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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

The website www.dnssec.cz is operated by CZ.NIC, the official Czech domain registry association responsible for managing the .CZ top-level domain and promoting DNS security technologies such as DNSSEC. The site provides educational content about DNSSEC, tools to test DNSSEC protection on user connections and domains, and contact information for support. It targets Czech internet users, domain owners, and ISPs, positioning itself as an authoritative source on DNS security in the Czech Republic. Technically, the site uses a straightforward technology stack including jQuery and custom JavaScript, with CSS for styling. The site is accessible, uses HTTPS, and embeds multimedia content such as YouTube videos. However, it lacks advanced security headers and comprehensive privacy or cookie policies. Mobile optimization and accessibility are basic but functional. From a security perspective, the site demonstrates good practices by using HTTPS and avoiding exposed sensitive data. However, the absence of security headers and incident response information limits its security maturity. The missing WHOIS data for the domain reduces transparency and trustworthiness from a registration standpoint, although the CZ.NIC branding and contact details support legitimacy. Overall, the site is a reliable educational resource on DNSSEC with moderate technical sophistication and a good business credibility profile. Improvements in privacy compliance, security headers, and WHOIS transparency would enhance trust and security posture.

Detected Technologies

jQuery 3.2.1JavaScriptCSSHTML5

12 urgent findings need attention

2 critical · 10 high

  • + 4 more findings in the full report below
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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

70/100

GDPR Compliance

5 findings

10/100

NIS2 Compliance

9 findings

2/100

Email Security

5 findings

60/100

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

CZ.NIC operates as a non-profit essential entity in the technology sector, specifically managing the Czech Republic's .CZ domain registry and promoting DNS security. Its business model focuses on providing registry services, internet infrastructure stability, and educational outreach on DNSSEC technology. The organization holds a strong market position as the authoritative domain registry in the Czech Republic, serving ISPs, domain owners, and internet users. Revenue streams likely include domain registration fees and related services. The website reflects a mature partnership ecosystem with links to official CZ.NIC resources and no commercial advertising. Growth indicators include active promotion of DNSSEC adoption and user tools. The organization's operations emphasize trust, transparency, and internet security.

Security Posture Analysis

Comprehensive Security Assessment

The website's security posture is moderate. It uses HTTPS, which is mandatory for secure communications, and avoids exposing sensitive data. However, it lacks important security headers such as Content Security Policy, HSTS, and X-Frame-Options, which are recommended to mitigate common web attacks. No vulnerability disclosure or incident response information is provided, limiting transparency and readiness for security incidents. The absence of privacy and cookie policies also indicates gaps in compliance with data protection regulations such as GDPR. No known vulnerabilities or malicious content were detected. Overall, the site is secure for informational purposes but would benefit from enhanced security controls and compliance documentation.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement comprehensive privacy and cookie policies to improve GDPR compliance and user trust.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

CZ.NIC, z. s. p. o.

Description:

The website educates about DNSSEC technology, its importance for securing DNS queries, and offers tools to test DNSSEC protection for internet connections and .CZ domains. It is managed by CZ.NIC, the association responsible for the .CZ domain registry and DNS infrastructure.

Key Services:
DNSSEC educationDNSSEC testing toolsDomain registry management for .CZ domains
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
jQuery 3.2.1JavaScriptCSSHTML5
Performance:

moderate

Mobile:

basic

Accessibility:

basic

SEO:

basic

Security Assessment

Security Score:
70/100
Best Practices:
  • Use of HTTPS (implied by URL https://)
  • No visible exposed sensitive data
  • No vulnerable libraries detected in provided scripts

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 rich content about DNSSEC technology.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

70/100
Score

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Weak Referrer-Policy configuration

LOW

Current value: "same-origin"

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

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

10/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

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

EU business without adequate privacy measures

CRITICAL

EU businesses are subject to strict GDPR requirements

Third-party services without privacy policy

HIGH

Detected services: YouTube

GDPR Compliance Analysis

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

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

2/100
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

Critical sector without clear security compliance

HIGH

Detected sectors: transport, digital

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📧Email Security

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

Email Security

SPF, DKIM, and DMARC validation

60/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

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

No email authentication configured

CRITICAL

Domain is vulnerable to email spoofing

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

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

65/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 64 days

Weak SSL Key Length

HIGH

SSL certificate uses 384-bit key, which is considered weak

Mixed Content Detected

MEDIUM

1 resources loaded over insecure HTTP

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:kasuar.cz
Issuer:E7
Valid Until:12/21/2025 (64 days)
SANs:dns-ok.cz, dnssec.cz, ietf104.cz +7 more

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

75/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

No DMARC Record

MEDIUM

DMARC policy not configured

Domain Registration Details

Domain Age
19 years(mature)

DNS Records

A Records:217.31.205.51
AAAA Records:2001:1488:0:3::5
Name Servers:
sld1.ns.nic.czDNS only
sld2.ns.nic.czDNS only
sld3.ns.nic.czDNS only
MX Records:
15: mx.nic.cz
10: mail.nic.cz
SOA:Serial: 1760689254, TTL: 7200s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:66ms

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 dnssec.cz compare?

See how dnssec.cz 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 employs a simple but effective technical stack with jQuery 3.2.1 and custom JavaScript for interactivity, supported by CSS for styling. The HTML structure is valid and includes meta tags for viewport and description, aiding SEO. Performance is moderate with embedded YouTube content potentially impacting load times. Mobile responsiveness is basic but present. No CMS or advanced frameworks are detected, indicating a custom or lightweight implementation. Hosting provider details are not discernible from the content. Technical debt appears low, but modernization opportunities include adopting modern JavaScript frameworks and improving accessibility features. Security technical risks include missing security headers and lack of documented incident response.
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PDF Report & Export

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39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

Contact emails, phone numbers & warm leads

49.90 €one-time • Incl. 21% VAT

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

Domaindnssec.cz
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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