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Security report for jsk.cz

JŠK, advokátní kancelář, s.r.o. · Other · Czech Republic

Medium risk. 5 critical or high findings in GDPR outside view and SSL/TLS.

Security score

70/100

Risk levelMedium

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

JŠK, advokátní kancelář, s.r.o. is a Czech law firm specializing in commercial law, operating since 2004. The firm offers services in transactions, disputes, and regulatory matters, targeting business clients seeking legal expertise. The website is professionally designed, multilingual (Czech and English), and provides clear contact information and social media presence, supporting its market position as an established legal service provider in the Czech Republic. Technically, the site is built on Webflow with modern web technologies, including Google Fonts, jQuery, and Google Tag Manager for analytics. The site is mobile optimized and performs moderately well. Security posture is adequate with HTTPS enforced and cookie consent implemented, but lacks advanced security headers and explicit security policies. WHOIS data is unavailable, which slightly reduces trust but does not negate the professional presentation and business legitimacy evident on the site. Overall, the site is secure, professional, and compliant with basic privacy regulations.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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. 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

  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 jsk.cz

This scan found 20 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

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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
57
Security headers
60
Email security
85
DNS health
75
Network security
100
GDPR outside view
40
Average
70

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 jsk.cz, from OffSeq Breach.

Total records
4
Employees
0
Customers
0
Third parties
4
Weak passwords
50%

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 jsk.cz.

Select it in the checkout above.

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

Technical appendix

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

Business context

Business profile

The firm operates in the legal services sector with a focus on commercial law, serving medium-sized business clients primarily in the Czech Republic. Its business model is service-based, relying on expert legal advice and representation. The website indicates a stable market presence with a history since 2004 and a medium-sized organizational scale. The firm maintains active social media channels on Facebook and LinkedIn, enhancing its professional network and client engagement. No parent or subsidiary companies are indicated. The firm emphasizes personal approach and responsibility, which may be a competitive advantage in client relations. The website content and navigation support client education and service promotion effectively.

Security posture

The website enforces HTTPS and includes a cookie consent mechanism, indicating awareness of privacy and security best practices. However, the absence of security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options represents a security gap that could expose the site to certain web-based attacks. No vulnerability disclosure or incident response information is provided, which limits transparency in security management. The WHOIS data absence is a concern for domain legitimacy verification. Overall, the security posture is moderate but could be improved with additional technical controls and policy disclosures.

Recommendations

  1. Implement standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to enhance protection against common web attacks.
  2. Publish a comprehensive security policy and incident response plan accessible on the website to improve transparency and trust.
  3. Investigate and resolve the WHOIS data unavailability to improve domain legitimacy and trustworthiness.
  4. Regularly audit third-party scripts and tracking tools to ensure no vulnerabilities or privacy issues.
  5. Enhance privacy compliance by providing detailed data retention policies and explicit GDPR compliance statements.

Contact details published on the site

Addresses
Legal name
JŠK, advokátní kancelář, s.r.o.
VAT number
CZ24712485
Registration number
24712485
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
JŠK, advokátní kancelář, s.r.o.
Description
Pomáháme ve všech oblastech komerčního práva už od roku 2004. Věříme v osobní přístup, protože jedině tak vám můžeme nabídnout chytré a smysluplné řešení.
Key services
Commercial law, Transactions, Disputes, Regulation
Content quality
good
Branding
consistent

Technology

Stack
Webflow, Google Fonts, jQuery, Finsweet CMS Library, Google Tag Manager
Platforms
Webflow CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

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 challenges
  2. Professional law firm website in Czech language with English option
  3. Cookie consent implemented with clear user options
  4. No visible security headers detected in HTML source
  5. WHOIS data unavailable from CZ NIC WHOIS server
  6. Contact info including phone, email, and physical address clearly presented
  7. Social media presence on Facebook and LinkedIn
  8. No explicit privacy or security certifications displayed
  9. No terms of service page found
  10. No vulnerability disclosure or security.txt found
Technical notes

Notes

The website is built on the Webflow platform, leveraging modern web technologies such as Google Fonts and jQuery. It uses Google Tag Manager for analytics and tracking. The site is hosted on Webflow's CDN, providing reliable performance and availability. Mobile optimization is good, and the site structure supports clear navigation. However, accessibility features are basic and could be enhanced. SEO is adequately addressed with proper meta tags and Open Graph data. The site does not expose sensitive data and uses secure HTTPS connections. There is room for improvement in security headers and privacy disclosures to reduce technical risks.
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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