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Security report for just4web.cz

just4web.cz s.r.o. · Technology · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 3 other checks.

Security score

53/100

Risk levelMedium

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

just4web.cz s.r.o. is a Czech Republic-based small business specializing in web development and online marketing services, operating since 2009. The company positions itself as a reliable partner for businesses seeking quality websites and effective digital marketing to grow their online presence. Their website showcases a professional portfolio, client references, and clear contact information, indicating a mature business model focused on service delivery to small and medium enterprises. Technically, the website employs a variety of JavaScript libraries including jQuery, Owl Carousel, and Google Tag Manager, indicating a moderate level of digital maturity. The site is mobile optimized with good SEO practices and a cookie consent mechanism aligned with GDPR requirements. However, the absence of explicit security headers and incomplete WHOIS data suggest areas for improvement in infrastructure transparency and security hardening. From a security perspective, the site uses HTTPS and implements cookie consent, but lacks visible security policies or incident response information. No critical vulnerabilities or exposed sensitive data were detected, but updating libraries and adding security headers would enhance the security posture. The missing WHOIS data reduces domain trustworthiness, though the website content and business information appear legitimate. Overall, just4web.cz s.r.o. presents a professional and trustworthy online presence with room for technical and security enhancements. Strategic focus on improving security headers, verifying domain registration, and publishing security policies will strengthen their risk profile and client trust.

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

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. 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';…

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

Keep watching just4web.cz

This scan found 21 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

€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.

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Full report

€39.90one-time

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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
72
Security headers
40
Email security
85
DNS health
60
Network security
20
GDPR outside view
40
Average
53

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

Technical appendix

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

Business context

Business profile

The company operates in the competitive Czech web development and online marketing sector, targeting small and medium businesses. Their competitive advantage lies in long-term experience (21 years in the industry) and a broad portfolio of completed projects. Revenue streams likely derive from custom website development and ongoing marketing campaigns. The company maintains active social media channels and provides comprehensive client support resources, indicating a customer-centric approach. No parent or subsidiary companies were identified, suggesting an independent operation. Growth indicators include a large number of marketing campaigns and completed websites. The partnership ecosystem is not explicitly detailed but includes common digital marketing platforms such as Google and Seznam.

Security posture

The current security maturity level is moderate. The website enforces HTTPS and uses cookie consent mechanisms, demonstrating compliance with basic privacy regulations. However, the absence of security headers such as Content-Security-Policy and X-Frame-Options is a gap that could expose the site to certain web attacks. No incident response or security policy pages were found, indicating limited transparency in security governance. The use of older JavaScript libraries like jQuery 1.9.1 may pose vulnerabilities if not regularly updated. There is no evidence of a vulnerability disclosure program or security.txt file. Overall, the security culture appears basic but functional, with opportunities for improvement in formal policies and technical controls.

Recommendations

  1. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish a dedicated security policy and incident response page to improve transparency and preparedness.
  3. Regularly update all JavaScript libraries and dependencies to the latest secure versions.
  4. Add a security.txt file to facilitate vulnerability disclosure and improve security communication.
  5. Verify and publish domain WHOIS information to enhance trust and legitimacy.

Contact details published on the site

Addresses
Legal name
just4web.cz s.r.o.
VAT number
CZ27547876
Registration number
IČ: 27547876
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
just4web.cz s.r.o.
Description
Pomáháme vám uspět na internetu už od roku 2009. Tvoříme weby, které fungují, a zajišťujeme marketing, který přináší výsledky. Jsme vašim partnerem v online prostoru a pomáháme vám po celou dobu spolupráce.
Key services
Webové stránky, Online marketing
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.9.1, Google Tag Manager, Google Analytics, Owl Carousel, PrettyPhoto, PhotoSwipe, MicroModal, Nette Forms
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • Form validation with client-side rules

Analytics and tracking

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

Advertising

Ad networks
Google Ads
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 rich content and navigation.
  2. No WHOIS data available, which is unusual and warrants further investigation.
  3. Strong presence of privacy and cookie policies with GDPR compliance.
  4. Contact information is complete and professional.
  5. No visible security headers detected; opportunity for improvement.
  6. Use of multiple modern JavaScript libraries and tracking tools.
  7. No signs of adult or questionable content.
  8. Good mobile responsiveness and user experience.
  9. No terms of service page found.
Technical notes

Notes

The website is built on a custom or proprietary CMS platform with a front-end leveraging jQuery, Owl Carousel, PrettyPhoto, and PhotoSwipe for UI components. Google Tag Manager and Google Analytics are integrated for marketing and analytics purposes. The site is mobile responsive and uses modern fonts and CSS for styling. Performance is moderate, with asynchronous loading of scripts and lazy loading of images. Accessibility is basic but could be improved. No major technical debt or deprecated technologies were detected aside from the older jQuery version. Hosting provider details are not disclosed. Overall, the technical infrastructure supports the business needs but could benefit from modernization and enhanced security 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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