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Security report for lerstudio.cz

Ler digital studio s.r.o. · Technology · Czech Republic

High risk. 11 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

40/100

Risk levelHigh

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

Ler digital studio s.r.o. is a well-established Czech digital and branding agency founded in 2013, specializing in web development, graphic design, and online marketing services. The company targets both Czech and international clients, offering tailored digital solutions including website creation, e-commerce, branding, and marketing consultancy. Their market position is reinforced by multiple partnerships with recognized entities such as Google, Wix, Meta, and industry associations, reflecting a strong reputation and trustworthiness in the digital services sector. Technically, the website employs a modern technology stack including Laravel backend, jQuery, Bootstrap, and various front-end libraries for animations and user experience enhancements. The site is hosted by Wedos, a Czech hosting provider, and demonstrates good mobile optimization and SEO practices. Analytics and tracking tools are extensively used, including Google Analytics, Microsoft Clarity, Facebook Pixel, and retargeting services, indicating a mature digital marketing infrastructure. From a security perspective, the site enforces HTTPS and includes CSRF tokens for form security. However, it lacks explicit security headers and a formal security or incident response policy. Cookie usage is disclosed but lacks an explicit consent mechanism, which may be a compliance gap. No vulnerabilities or suspicious content were detected, and the domain registration data aligns well with the business claims, supporting legitimacy. Overall, Ler studio presents a professional, trustworthy, and technically competent digital agency with room for improvement in security best practices and privacy compliance mechanisms. Strategic enhancements in security headers, incident response transparency, and cookie consent would further strengthen their security posture and regulatory compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

11 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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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 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 lerstudio.cz

This scan found 27 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

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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
15
Email security
60
DNS health
80
Network security
0
GDPR outside view
25
Average
40

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 · found on this site
  • 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 lerstudio.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for lerstudio.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

Ler studio operates as a service-oriented digital agency focusing on technology, marketing, and design sectors. Their competitive advantage lies in comprehensive service offerings from web development to branding and marketing, supported by strong partnerships with global platforms like Google and Wix. The business model is client-service based, targeting SMEs and startups as well as established companies. Revenue streams likely include project-based fees and ongoing marketing services. The partnership ecosystem enhances credibility and market reach. Growth indicators include recent references and active blog content. The company maintains multiple office locations in major Czech cities, indicating medium size and regional presence.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and CSRF protection implemented. However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces defense-in-depth. No explicit incident response or vulnerability disclosure policies are present, which may hinder rapid response to security events. Cookie usage is transparent but lacks a consent mechanism, potentially impacting GDPR compliance. The extensive use of third-party tracking scripts increases the attack surface and privacy risks. Overall, the security posture is adequate for a digital agency but could benefit from formalized policies and enhanced technical controls.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to enhance browser security.
  2. Deploy a cookie consent banner/mechanism to ensure explicit user consent and improve GDPR compliance.
  3. Publish a security policy and incident response plan on the website, including contact channels for security issues.
  4. Add a security.txt file to facilitate responsible vulnerability disclosure and improve transparency.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
Ler digital studio s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Ler digital studio s.r.o.
Description
Jsme digitální a brandingová agentura pomáhající českým i zahraničním firmám k úspěchu. Naše zkušenosti sahají od foodu po IT a rádi je dáme k dispozici i vašemu byznysu.
Key services
Tvorba webových stránek, Vývoj webových aplikací, E-shop na míru, Výkonnostní marketing, Strategické konzultace - startupy, Obsahový marketing, Audit a optimalizace webu, Tvorba loga a brandingu, Obalový design, Grafické studio
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap CSS, Slick Carousel, Fancybox, Animate.css, AOS (Animate On Scroll), Google Tag Manager, Google Analytics, Bing Ads, Facebook Pixel, Leady tracking, Lfeeder tracking
Frameworks
Laravel
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in meta and JavaScript
  • Use of async loading for scripts

Analytics and tracking

Services
Google Analytics, Microsoft Clarity, Facebook Pixel
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Google Ads, Bing Ads
Tracking pixels
Microsoft Clarity, Facebook Pixel, Leady, Lfeeder
Marketing tools
Facebook Pixel, Microsoft Clarity, Leady, Lfeeder
Transparency
good

Site quality

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

Key observations

  1. Website is a professional digital and branding agency based in Czech Republic.
  2. Content is comprehensive, well-structured, and localized in Czech language.
  3. Multiple trusted partner badges and certifications are displayed.
  4. Extensive use of modern web technologies and tracking tools.
  5. No explicit privacy or security policy documents beyond GDPR and cookie info found.
  6. No visible security headers detected in HTML source.
  7. Contact information is clearly presented with multiple office locations.
  8. No WAF or blocking mechanisms detected.
  9. No suspicious or malicious content found.
Technical notes

Notes

The website is built on a Laravel backend with a modern front-end stack including jQuery, Bootstrap, and animation libraries. It uses CDN-hosted libraries for performance and reliability. The site is mobile-optimized with responsive design and accessibility considerations. Analytics and marketing tools are integrated asynchronously to reduce load impact. Hosting is provided by Wedos, a reputable Czech provider. Performance is moderate, with potential for optimization in script loading and caching. No CMS detected, indicating a custom or framework-based solution. Technical risks include reliance on multiple third-party scripts and lack of some security headers.
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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