Is sulko.cz Safe? Security Analysis for SULKO s.r.o.
https://sulko.czCheck if sulko.cz is a scam or legitimate. Free security scan and reviews.
Below Manufacturing avg (52)
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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
SULKO s.r.o. is a well-established Czech manufacturer specializing in plastic, aluminum, and wooden windows and doors, along with shading technology and photovoltaic systems. Founded in 1993, the company has built a strong market presence with over 30 years of experience and thousands of customers domestically and internationally. Their business model focuses on manufacturing high-quality products and providing comprehensive services including free price calculations and support. The website reflects a professional and consistent brand image with clear navigation and relevant content targeting residential and commercial customers. Technically, the website employs a traditional tech stack with jQuery, Google Tag Manager, Hotjar, and other common libraries. While the site is mobile-optimized and SEO-friendly, some outdated libraries like jQuery 1.7.2 present potential security risks. The site uses HTTPS and integrates Google reCAPTCHA for form security. Cookie consent mechanisms are robust and GDPR compliant, enhancing privacy transparency. From a security perspective, the site demonstrates good practices such as encrypted connections and consent management but lacks advanced security headers and explicit incident response policies. The absence of a vulnerability disclosure policy and use of outdated JavaScript libraries are areas for improvement. Overall, the domain registration data aligns well with the business claims, supporting legitimacy. The overall risk profile is moderate with recommendations to upgrade libraries, implement security headers, and publish incident response information to strengthen security posture and trustworthiness.
Detected Technologies
12 urgent findings need attention
1 critical · 11 high
- + 4 more findings in the full report below
Keep sulko.cz 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
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Security Headers
1 finding
0/100
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
SULKO operates in the manufacturing sector with a focus on windows, doors, shading technology, and photovoltaic solutions. Their competitive advantage lies in their long-standing Czech heritage, quality certifications (TUV, REHAU Quality), and diversified product portfolio. Revenue streams likely include direct sales, e-commerce accessories, and service contracts. The target customers are homeowners, businesses, and partners in the Czech Republic and abroad. The company maintains partnerships with industry organizations and has a showroom and e-shop to support sales. Growth indicators include active marketing, video content, and participation in subsidy programs. Strategic observations highlight a solid brand reputation and a comprehensive digital presence but also suggest modernization of technical infrastructure.
Security Posture Analysis
Comprehensive Security Assessment
The website's security maturity is moderate. HTTPS is enforced, and Google reCAPTCHA is used to protect forms. Cookie consent is implemented with granular user controls, supporting GDPR compliance. However, the use of an outdated jQuery version introduces potential vulnerabilities. The absence of security headers such as Content-Security-Policy and X-Frame-Options reduces defense-in-depth. No explicit incident response or vulnerability disclosure policies are published, which may delay handling of security incidents. No exposed sensitive data or obvious vulnerabilities were detected in the HTML content. Overall, the security posture is adequate but could be improved by updating libraries, adding security headers, and formalizing incident response processes.
Strategic Recommendations
Priority Actions for Security Improvement
Upgrade jQuery and other JavaScript libraries to the latest stable versions to mitigate known vulnerabilities.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
SULKO s.r.o.
Český výrobce plastových, hliníkových a dřevěných dveří a oken, stínící techniky a dalších produktů. Tradiční značka s více než 30letou historií a zkušenostmi.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Google reCAPTCHA integration on forms
- Cookie consent banner with granular controls
- No exposed sensitive data in HTML
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and multimedia.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, LinkedIn, YouTube, Google APIs
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
HIGHDetected 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
DMARC not enforcing
MEDIUMDMARC policy is set to "none"
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 41 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Mixed Content Detected
MEDIUM1 resources loaded over insecure HTTP
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
High-Risk Service Exposed: FTP
HIGHPort 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer
How does sulko.cz compare?
sulko.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
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
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
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Community rating
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