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Is kastnersw.cz a Scam? Security Check Results - KASTNER software

kastnersw.cz Security Report Summary

kastnersw.cz received a security score of 48 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers KASTNER software's website security posture. KASTNER software operates in the Technology industry in Czech Republic.

KASTNER software is a Czech-based software company specializing in economic, accounting, and tax software solutions tailored for small businesses and entrepreneurs. Their main products include FORM studio for electronic forms, STEREO for accounting and tax management, and ENTER for invoicing and cash register functions. The company positions itself as an experienced provider with over 30 years in the industry and a user base exceeding 10,000 customers. The website is professionally designed, consistent in branding, and provides clear information about their offerings and support services. Technically, the website leverages modern web technologies such as Blazor Server for its frontend framework, integrates multiple analytics and marketing tools including Google Tag Manager, Facebook Pixel, Smartlook, and Seznam Analytics, and employs Google reCAPTCHA v3 for bot protection. The site is mobile-optimized and includes cookie consent mechanisms aligned with GDPR requirements. Performance is moderate with good SEO and basic accessibility features. From a security perspective, the site uses HTTPS and includes anti-bot measures, but lacks explicit security headers visible in the HTML source. No vulnerabilities or exposed sensitive data were detected. However, the absence of WHOIS data for the domain raises some concerns about domain registration transparency and trustworthiness. No direct contact emails or phone numbers are present on the main page, which could impact user trust and support accessibility. Overall, the website presents a professional and trustworthy front for KASTNER software's business, but improvements in domain registration transparency, security header implementation, and clearer contact information would enhance its security posture and business credibility.

The security scan identified 30 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: Blazor Server, Google Tag Manager, Google reCAPTCHA v3, Facebook Pixel, Smartlook, Seznam Analytics, CKEditor 5.

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 kastnersw.cz Safe? Security Analysis for KASTNER software

https://kastnersw.cz

Check if kastnersw.cz is a scam or legitimate. Free security scan and reviews.

TechnologyCzech Republicsmall
Blazor ServerGoogle Tag ManagerGoogle reCAPTCHA v3Facebook PixelSmartlook+2 more
Analyzed 10/13/2025Completed 3:28:42 PM5mo ago
48
Security Score
HIGH RISK

Below Technology avg (72)

10,000+

Domains scanned

500+

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Domainkastnersw.cz
Access tierFull report or marketing add-on

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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

AI Summary

KASTNER software is a Czech-based software company specializing in economic, accounting, and tax software solutions tailored for small businesses and entrepreneurs. Their main products include FORM studio for electronic forms, STEREO for accounting and tax management, and ENTER for invoicing and cash register functions. The company positions itself as an experienced provider with over 30 years in the industry and a user base exceeding 10,000 customers. The website is professionally designed, consistent in branding, and provides clear information about their offerings and support services. Technically, the website leverages modern web technologies such as Blazor Server for its frontend framework, integrates multiple analytics and marketing tools including Google Tag Manager, Facebook Pixel, Smartlook, and Seznam Analytics, and employs Google reCAPTCHA v3 for bot protection. The site is mobile-optimized and includes cookie consent mechanisms aligned with GDPR requirements. Performance is moderate with good SEO and basic accessibility features. From a security perspective, the site uses HTTPS and includes anti-bot measures, but lacks explicit security headers visible in the HTML source. No vulnerabilities or exposed sensitive data were detected. However, the absence of WHOIS data for the domain raises some concerns about domain registration transparency and trustworthiness. No direct contact emails or phone numbers are present on the main page, which could impact user trust and support accessibility. Overall, the website presents a professional and trustworthy front for KASTNER software's business, but improvements in domain registration transparency, security header implementation, and clearer contact information would enhance its security posture and business credibility.

Detected Technologies

Blazor ServerGoogle Tag ManagerGoogle reCAPTCHA v3Facebook PixelSmartlookSeznam AnalyticsCKEditor 5

13 urgent findings need attention

1 critical · 12 high

  • + 5 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

7 findings

20/100

GDPR Compliance

4 findings

25/100

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

KASTNER software operates in the technology sector, focusing on software solutions for accounting, tax, and electronic form management primarily targeting small businesses in the Czech Republic and Slovakia. Their business model revolves around software licensing with free trials and online purchases. The company leverages its long-standing market presence and a sizable user base as competitive advantages. The website indicates a mature partnership ecosystem including social media presence and charitable affiliations. Revenue streams likely include software sales, support services, and updates. The company maintains a consistent brand image and provides regular updates and technical support, signaling a stable operational model with growth potential in the regional SME market.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a moderate to good security maturity level with HTTPS enforced and integration of Google reCAPTCHA v3 to mitigate automated abuse. Cookie consent and privacy policy implementation indicate compliance with GDPR. However, the lack of visible security headers such as Content-Security-Policy and Referrer-Policy suggests room for improvement. No incident response or vulnerability disclosure information is provided, which could hinder timely security issue reporting. The absence of WHOIS data reduces domain trustworthiness and may indicate privacy protection or registration issues. Overall, the security posture is adequate for the business type but would benefit from enhanced transparency and additional security controls.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement and publish explicit security headers including Content-Security-Policy, X-Content-Type-Options, and Referrer-Policy to strengthen browser security.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

KASTNER software

Description:

Vyzkoušejte FORM studio - databázi elektronických formulářů a software na jejich vyplňování a elektronické podání, účetní software STEREO nebo fakturační a pokladní systém ENTER.

Key Services:
FORM studio - electronic forms softwareSTEREO - accounting and tax softwareENTER - invoicing and cash register software
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
Blazor ServerGoogle Tag ManagerGoogle reCAPTCHA v3Facebook PixelSmartlookSeznam AnalyticsCKEditor 5
Frameworks:
Blazor
Platforms:
Windows (application downloads)
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
80/100
Best Practices:
  • HTTPS enforced
  • Google reCAPTCHA v3 integration
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics & Tracking

Services:
Google AnalyticsSeznam AnalyticsSmartlook
Tracking Level:moderate
Privacy Compliance:good

Advertising & Marketing

Ad Networks:
Google AdsDoubleClick
Tracking Pixels:
Facebook PixelGoogle Analytics (via GTM)SmartlookSeznam Analytics
Marketing Tools:
Facebook Pixel
Transparency Level:good

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 challenge.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

20/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

25/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

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: Google Analytics, Facebook, Google APIs, Google Ads

GDPR Compliance Analysis

Privacy Policy0% confidence
Cookie Policy85% confidence
Contact Information Found90% confidence
phone

🛡️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, banking, 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

DMARC not enforcing

MEDIUM

DMARC policy is set to "none"

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

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 include:spf-zoner-zmail.zoner.com include:_spf.gateguard.cz -all
DNS Lookups:3/10
Policy:-all
DMARC Details
Policy:none
Aggregate Reports:mcgpi3ju9h@dmarc-reports.ecomailapp.com

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

100/100
Score

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:kastnersw.cz
Issuer:Encryption Everywhere DV TLS CA - G2
Valid Until:11/2/2026 (385 days)
SANs:kastnersw.cz, www.kastnersw.cz

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

80/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

DMARC Policy Set to None

LOW

DMARC is configured but not enforcing any policy

Domain Registration Details

Domain Age
19 years(mature)

DNS Records

A Records:217.198.122.49
AAAA Records:2a00:19a0:3:7a:0:d9c6:7a31:1
Name Servers:
ns1.regzone.czDNS only
ns1.regzone.de
ns1.regzone.info
MX Records:
15: 15mx.zoner.com
9: relay.zoner.com
10: 10mx.zoner.com
4: mail.gateguard.cz
SOA:Serial: 2025100908, TTL: 3600s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:79ms

SPF Analysis

SPF Record:
v=spf1 a include:spf-zoner-zmail.zoner.com include:_spf.gateguard.cz -all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

20/100
Score

High-Risk Service Exposed: FTP

HIGH

Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

How does kastnersw.cz compare?

kastnersw.cz scores below average. Browse similar domains to see how competitors handle security.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website is built using Blazor Server technology, indicating a modern single-page application architecture. It integrates multiple third-party analytics and marketing tools such as Google Tag Manager, Facebook Pixel, Smartlook, and Seznam Analytics, which provide comprehensive user behavior tracking and marketing capabilities. The site uses Google reCAPTCHA v3 for bot mitigation. Performance is moderate with good SEO practices including meta tags and Open Graph data. Mobile optimization is good, but accessibility is basic and could be improved. The site does not appear to use a common CMS but rather a custom Blazor-based solution. Hosting provider details are not discernible from the HTML content. Overall, the technical implementation is solid but could benefit from enhanced security headers and accessibility improvements.
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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

Domainkastnersw.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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