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Is grandoptical.cz a Scam? Security Check Results

grandoptical.cz Security Report Summary

grandoptical.cz received a security score of 70 out of 100 in Guard's comprehensive security analysis, classified as "Moderate Risk". grandoptical.cz operates in the Retail industry in Czech Republic.

GrandOptical.cz is a Czech Republic-based retail business specializing in optical products including prescription glasses, sunglasses, and contact lenses. The website offers a broad product catalog from global and exclusive brands, supported by professional optometrist services and physical store locations across the country. The business model combines e-commerce with brick-and-mortar retail, targeting general consumers seeking quality eyewear and eye care services. The site is well-branded and professionally designed, providing a good user experience with clear navigation and mobile optimization. Technically, the website employs modern technologies such as Google Tag Manager for analytics and Algolia for search functionality, indicating a mature digital infrastructure. The site uses HTTPS with security features like CSRF tokens and reCAPTCHA, enhancing security posture. However, the absence of visible security headers and formal privacy or cookie policies suggests room for improvement in compliance and security best practices. Security-wise, the site shows a moderate security posture with encrypted connections and anti-CSRF measures but lacks explicit privacy and cookie policies, security.txt, or vulnerability disclosure information. No WHOIS data is publicly available, likely due to privacy protection, which slightly reduces transparency but is common for retail businesses. No suspicious or malicious indicators were found in the website content or external links. Overall, GrandOptical.cz presents a legitimate, professional retail website with good content and technical implementation but would benefit from enhanced privacy compliance and security transparency to improve trust and regulatory adherence.

The security scan identified 24 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: Google Tag Manager, Algolia Search.

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 grandoptical.cz Safe? Security Analysis for Úvodní stránka | GrandOptical

https://grandoptical.cz

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

RetailCzech Republicmedium
Google Tag ManagerAlgolia Search
Analyzed 10/14/2025Completed 3:33:56 AM5mo ago
70
Security Score
MEDIUM RISK

Above Retail avg (56)

10,000+

Domains scanned

500+

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Domaingrandoptical.cz
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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

GrandOptical.cz is a Czech Republic-based retail business specializing in optical products including prescription glasses, sunglasses, and contact lenses. The website offers a broad product catalog from global and exclusive brands, supported by professional optometrist services and physical store locations across the country. The business model combines e-commerce with brick-and-mortar retail, targeting general consumers seeking quality eyewear and eye care services. The site is well-branded and professionally designed, providing a good user experience with clear navigation and mobile optimization. Technically, the website employs modern technologies such as Google Tag Manager for analytics and Algolia for search functionality, indicating a mature digital infrastructure. The site uses HTTPS with security features like CSRF tokens and reCAPTCHA, enhancing security posture. However, the absence of visible security headers and formal privacy or cookie policies suggests room for improvement in compliance and security best practices. Security-wise, the site shows a moderate security posture with encrypted connections and anti-CSRF measures but lacks explicit privacy and cookie policies, security.txt, or vulnerability disclosure information. No WHOIS data is publicly available, likely due to privacy protection, which slightly reduces transparency but is common for retail businesses. No suspicious or malicious indicators were found in the website content or external links. Overall, GrandOptical.cz presents a legitimate, professional retail website with good content and technical implementation but would benefit from enhanced privacy compliance and security transparency to improve trust and regulatory adherence.

Detected Technologies

Google Tag ManagerAlgolia Search

8 urgent findings need attention

1 critical · 7 high

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Keep grandoptical.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

2 findings

85/100

GDPR Compliance

3 findings

40/100

NIS2 Compliance

8 findings

17/100

Email Security

4 findings

80/100

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

GrandOptical operates in the retail sector focused on eyewear and eye care products in the Czech Republic. The company leverages both online and physical store channels to reach customers. Its competitive advantage lies in offering a wide range of branded optical products combined with professional eye measurement services. The business targets a broad demographic including men, women, and children. The presence of exclusive brands and virtual try-on features indicates investment in customer experience and innovation. The use of Google Tag Manager and Algolia suggests active marketing and search optimization efforts. The lack of visible company registration or VAT information on the site limits deeper business intelligence insights. The company appears to maintain a medium-sized operation with a focus on quality and service.

Security Posture Analysis

Comprehensive Security Assessment

The website enforces HTTPS and includes CSRF protection and reCAPTCHA, which are positive security controls. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces defense-in-depth. No explicit privacy or cookie policies were found, which is a compliance gap under GDPR. There is no evidence of a published incident response policy or security contact channels. No vulnerability disclosure or security.txt file is present, limiting transparency for security researchers. Overall, the security maturity is moderate but could be improved by implementing recommended headers, publishing privacy and cookie policies, and establishing clear security communication channels.

Strategic Recommendations

Priority Actions for Security Improvement

1

Publish comprehensive privacy and cookie policies with clear GDPR compliance statements.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Description:

Vyberte si z naší široké nabídky brýlí a kontaktních čoček od světových značek. Nabízíme vysokou kvalitu výrobků a profesionální služby v našich prodejnách po celé České republice.

Key Services:
Sale of optical framesSale of sunglassesSale of contact lensesEye measurement servicesProfessional optometrist care
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
Google Tag ManagerAlgolia Search
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
80/100
Best Practices:
  • HTTPS enforced
  • CSRF token present in meta tag
  • reCAPTCHA site key present

Analytics & Tracking

Services:
Google Tag Manager
Tracking Level:moderate
Privacy Compliance:basic

Advertising & Marketing

Marketing Tools:
Algolia Search
Transparency Level:basic

Website Quality Assessment

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

Key Observations

1

Website is fully accessible with rich content and product listings.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

85/100
Score

Weak Referrer-Policy configuration

LOW

Current value: "no-referrer-when-downgrade"

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

40/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

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, YouTube

GDPR Compliance Analysis

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

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

17/100
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

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📧Email Security

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

Email Security

SPF, DKIM, and DMARC validation

80/100
Score

Complex SPF record

LOW

Too many include statements can cause lookup limits

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 ip4:206.122.102.13 ip4:206.164.32.184 ip4:206.164.32.185 ip4:213.16.65.229 ip4:89.185.230.128/25 include:amazonses.com include:proweb.hu include:spf.mail.grandvisioncares.hu include:spf.protection.outlook.com include:_spf-essilor-mailrelay.grandvision.com -all
DNS Lookups:5/10
Policy:-all
DKIM Selectors Found
Selector:selector1(1416-bit rsa)
Selector:selector2(1416-bit rsa)
Selector:s1(1440-bit rsa)
DMARC Details
Policy:reject
Subdomain Policy:reject
Aggregate Reports:dmarc_rua@emaildefense.proofpoint.com
Forensic Reports:dmarc_ruf@emaildefense.proofpoint.com

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

77/100
Score

Weak Protocols Supported

HIGH

Server supports weak protocols: TLSv1.1

Certificate Transparency Not Implemented

LOW

Certificate is not logged in Certificate Transparency logs

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 46 days

Partial SSL/TLS Assessment

LOW

Completed 3 of 4 security checks due to time constraints

Protocol Support

TLSv1.3TLSv1.2TLSv1.1

OCSP Status

OCSP Stapling Enabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

85/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

Domain Registration Details

Domain Age
24 years(mature)

DNS Records

A Records:79.139.63.129
Name Servers:
ns-1083.awsdns-07.org
ns-2044.awsdns-63.co.uk
ns-26.awsdns-03.com
ns-980.awsdns-58.net
MX Records:
10: grandoptical-cz.mail.protection.outlook.com
SOA:Serial: 1, TTL: 86400s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:54ms

SPF Analysis

SPF Record:
v=spf1 ip4:206.122.102.13 ip4:206.164.32.184 ip4:206.164.32.185 ip4:213.16.65.229 ip4:89.185.230.128/25 include:amazonses.com include:proweb.hu include:spf.mail.grandvisioncares.hu include:spf.protection.outlook.com include:_spf-essilor-mailrelay.grandvision.com -all

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 grandoptical.cz compare?

See how grandoptical.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 uses a modern tech stack including Google Tag Manager for analytics and Algolia for search, indicating a focus on performance and user experience. The HTML structure is valid with proper meta tags for SEO and social verification (Facebook domain verification, Google site verification). The site is mobile optimized and responsive. However, no CMS or hosting provider information was detected. Performance appears moderate based on the presence of multiple large images and carousels. There is an opportunity to improve technical SEO and accessibility compliance. The lack of security headers is a technical risk that should be addressed to prevent common web attacks.
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PDF Report & Export

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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

Domaingrandoptical.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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