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Security report for reality-cesky-krumlov.cz

Český Internet s.r.o. · Real Estate · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

57/100

Risk levelMedium

0–100, higher is better. How it is calculated

The website www.reality-cesky-krumlov.cz is a regional real estate listing portal focused on the Český Krumlov district in the Czech Republic. It aggregates property listings for sale and rent, including offerings from verified real estate agencies and private sellers. The platform also provides directories of brokers and agencies, along with relevant real estate articles, targeting individuals and businesses interested in local real estate. The site is operated by Český Internet s.r.o., a known company in the region, which lends credibility to the platform. From a technical perspective, the website employs a modern technology stack including jQuery, Vue.js, Google Analytics, Google Tag Manager, and Facebook SDK. It uses HTTPS with good SSL configuration and implements cookie consent mechanisms compliant with GDPR. The site is mobile optimized with good navigation and SEO practices, although accessibility features are basic. Performance is moderate, with asynchronous loading of scripts and lazy loading of images. Security posture is adequate with HTTPS enforced and some security headers present, but lacks advanced headers like Content-Security-Policy. No explicit security or incident response policies are published. The absence of WHOIS data for the domain is a notable concern, reducing trustworthiness despite the professional presentation and known operator. No phone contact is explicitly provided, and terms of service are missing, which could impact user trust and compliance. Overall, the website is functional and professional for its business purpose but would benefit from improved transparency in domain registration, enhanced security headers, and clearer contact and policy disclosures to strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

9 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

Need hands-on remediation? Email guard@offseq.com

Keep watching reality-cesky-krumlov.cz

This scan found 26 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
62
Security headers
35
Email security
60
DNS health
75
Network security
100
GDPR outside view
10
Average
57

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention reality-cesky-krumlov.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for reality-cesky-krumlov.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The platform serves as a niche real estate marketplace for the Český Krumlov district, leveraging partnerships with local real estate agencies and brokers. Its business model is based on aggregating listings and providing search and filtering tools to end users. The presence of multiple partner domains and integration with a parent company indicates a stable ecosystem. The site targets local buyers, renters, and real estate professionals, positioning itself as a key regional player. Revenue likely derives from advertising, featured listings, and agency partnerships. The content and service offerings suggest a medium-sized operation with a focus on regional market penetration rather than national scale.

Security posture

The website demonstrates a moderate security maturity level with HTTPS and some security headers implemented. The use of third-party analytics and advertising scripts is managed with consent mechanisms, aligning with GDPR requirements. However, the lack of published security policies, incident response contacts, and vulnerability disclosure reduces transparency and preparedness. The missing WHOIS data is a significant red flag that could indicate registry issues or privacy protection but is unexplained. No critical vulnerabilities or exposed sensitive data were detected in the content. Overall, the security posture is adequate but could be improved with better policy disclosures and enhanced HTTP security headers.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Referrer-Policy to enhance protection against common web attacks.
  2. Publish clear security and incident response policies on the website to improve transparency and user trust.
  3. Investigate and resolve the missing WHOIS data issue to improve domain legitimacy and trustworthiness.
  4. Add explicit company phone contact information to facilitate user communication and enhance business credibility.
  5. Develop and publish terms of service and data protection officer contact details to strengthen compliance with legal and regulatory requirements.

Contact details published on the site

Addresses
Legal name
Český Internet s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Český Internet s.r.o.
Description
Realitní inzerce pro okres Český Krumlov. Nemovitosti na prodej či k pronájmu, prověřené RK i nabídky bez realitky.
Key services
Real estate listings for sale and rent, Search filters for property types and features, Broker and real estate agency directories, Real estate news and articles
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Google Analytics, Google Tag Manager, Facebook SDK, AppConsent (cookie consent), Multiple Select JS, Slick Carousel, Flatpickr, Vue.js (importmap for version 3.2.37), HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Use of Google Tag Manager and Analytics with async loading
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Adsense, Adv.ci.cz
Tracking pixels
Facebook Pixel, Twitter UWT
Marketing tools
AppConsent cookie consent
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is a regional real estate listing portal for Český Krumlov district
  2. Content is rich with property listings, broker directories, and articles
  3. Uses modern web technologies and third-party analytics
  4. Includes cookie consent and privacy policy links
  5. No WHOIS data available, which is unusual and reduces trust
  6. No visible security policy or incident response information
  7. No phone numbers explicitly labeled as company contact found
  8. Contact email info@ci.cz found in footer, associated with Český Internet s.r.o.
  9. No terms of service page detected
  10. No data protection officer contact found
Technical notes

Notes

The website uses a combination of modern JavaScript libraries and frameworks including jQuery and Vue.js, alongside Google Analytics and Tag Manager for tracking. It employs lazy loading for images and asynchronous script loading to optimize performance. The site is mobile responsive with a structured layout and semantic HTML. However, accessibility features are minimal and could be enhanced. The absence of a detected CMS suggests a custom or proprietary platform. Hosting provider details are not evident from the content. Overall, the technical implementation is solid but could benefit from improved accessibility and security header configurations.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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