Skip to main content

Security report for valuo.cz

Valuo · Real Estate · Czech Republic

Medium risk. 5 critical or high findings in Security headers and SSL/TLS.

Security score

60/100

Risk levelMedium

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

Valuo.cz is a Czech Republic-based real estate analytics platform providing comprehensive tools for property price estimation, market trend analysis, and historical data access. The platform targets both professionals and the general public, offering a suite of services including APIs, widgets, and specialized calculators. The website demonstrates a modern technical infrastructure leveraging Vue.js, Bootstrap, Google Analytics, and Cookiebot for consent management, reflecting a mature digital presence. Security posture is strong with HTTPS enforcement and cookie consent mechanisms, though some security headers and explicit policies are absent. The absence of WHOIS data is a notable transparency gap but does not detract significantly from the site's professional appearance and functionality. Overall, Valuo.cz presents a credible and well-structured service in the Czech real estate market.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 100 · Low
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

5 findings rated critical or high. Fix these first.

  1. 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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';…

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching valuo.cz

This scan found 22 issues across 5 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

€25per month

  • 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.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
52
Security headers
15
Email security
75
DNS health
80
Network security
40
GDPR outside view
100
Average
60

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 valuo.cz, from OffSeq Breach.

Total records
196
Employees
0
Customers
196
Third parties
0
Weak passwords
17%

6 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for valuo.cz.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)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

Valuo operates in the real estate sector, focusing on data-driven insights and analytics. Its business model revolves around SaaS offerings for real estate professionals and public users, monetizing through subscriptions and API access. The platform's market position is solid within the Czech Republic, supported by a portfolio of related domains serving different market segments. The company leverages partnerships and integrates third-party services for analytics and marketing. Growth potential is indicated by continuous feature additions and a professional blog presence. However, the lack of explicit contact and corporate information online may limit trust for some users.

Security posture

The website employs HTTPS and cookie consent management, indicating compliance with basic security and privacy standards. Use of CSRF tokens and modern analytics tools suggests attention to secure data handling. However, the absence of key security headers (e.g., Content-Security-Policy, X-Frame-Options) and lack of published security policies or incident response contacts represent gaps. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The missing WHOIS data reduces domain transparency, which is a minor risk factor. Overall, the security posture is good but could be enhanced by publishing formal security documentation and improving HTTP header configurations.

Recommendations

  1. Implement and publish a comprehensive privacy policy page accessible from the homepage.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to enhance protection.
  3. Provide clear contact information including company emails and phone numbers to improve business credibility.
  4. Publish a security.txt file and incident response contact details to facilitate vulnerability reporting.
  5. Regularly audit third-party scripts and cookies to ensure compliance with evolving privacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Valuo
Description
Valuo provides advanced tools offering an overview of the real estate market in the Czech Republic, including current and historical prices, market trends, and property analyses.
Key services
Valuo PROFI, Valuo MAPA, Valuo INDEX, Valuo API, Valuo WIDGET, Valuo HLÍDACÍ PES, Real estate price calculators and market trend analysis
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, Google Tag Manager, Cookiebot Consent Management, Swiper.js (carousel), Bootstrap (navbar), Custom CSS and JS
Frameworks
Vue.js (implied by data-v-app attribute), Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular controls
  • CSRF token present in meta tag

Analytics and tracking

Services
Google Analytics, Hotjar
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google DoubleClick, Facebook Ads
Tracking pixels
Hotjar
Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Cookie consent is implemented with detailed categories and granular user control.
  3. WHOIS data is missing or unavailable, which is a concern for domain transparency.
  4. No explicit privacy policy or terms of service pages detected in the provided content.
  5. No direct contact emails or phone numbers found in the visible content.
  6. Use of modern analytics and marketing tools is evident.
  7. Website is focused on Czech real estate market data and analytics.
  8. No security.txt or vulnerability disclosure information found.
  9. No data protection officer contact or security incident response info found.
Technical notes

Notes

The website uses a modern tech stack including Vue.js for frontend, Bootstrap for responsive design, and Cookiebot for GDPR-compliant cookie management. Analytics are handled via Google Analytics and Hotjar, with Google Tag Manager orchestrating tags. The site is mobile-optimized with good navigation clarity and professional branding. Performance is moderate, with potential improvements in load speed and accessibility. The absence of a detected CMS suggests a custom or static site architecture. Hosting provider details are not evident from the content. Overall, the technical implementation supports a robust user experience but could benefit from enhanced accessibility features and performance tuning.
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

Reviews of this site

Share your experience with valuo.cz. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review valuo.cz.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.