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Security report for telc.net

telc GmbH · Education · Germany

Medium risk. 4 critical or high findings in Email security, SSL/TLS and 1 other check.

Security score

64/100

Risk levelMedium

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

telc GmbH operates a professional website focused on language examinations and certifications across more than 10 languages, targeting learners, professionals, and educational institutions primarily in Germany. The website is built on the TYPO3 CMS platform, leveraging modern web technologies and frameworks such as Bootstrap and FontAwesome, and integrates advanced analytics and marketing tools including Google Analytics, Matomo, and Cookiebot for consent management. The site demonstrates a strong commitment to privacy compliance with a comprehensive cookie consent mechanism and GDPR-aligned privacy policy. Security measures include HTTPS enforcement, CSRF protection, and secure session management, though explicit security policies and incident response information are not publicly available. The absence of WHOIS data for the domain reduces the overall trust score, but the website content and technical infrastructure indicate a legitimate and professional operation.

Scanned

This is an earlier scan of telc.net. View the latest report

NIS2 and GDPR posture

GDPR outside view
83/ 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

4 findings rated critical or high. Fix these first.

  1. 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.

    • High

      SPF DNS Lookup Limit Exceeded

      SPF record requires 11 DNS lookups (max 10)

      What to do: Reduce includes and mechanisms to stay under limit

  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

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Domain Expires Soon

      Domain expires in 13 days

      What to do: Renew domain registration before expiration

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

Keep watching telc.net

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
52
Security headers
85
Email security
60
DNS health
65
Network security
40
GDPR outside view
83
Average
64

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

telc GmbH holds a significant position in the education sector, specializing in language certification services. Their business model revolves around providing standardized language exams and related learning materials, catering to a diverse audience including integration candidates and higher education institutions. The company leverages partnerships and subdomains to extend its service offerings, such as training and community engagement platforms. The website's use of reputable analytics and marketing services suggests a mature digital marketing strategy. However, the lack of visible direct contact information and absence of terms of service may limit user engagement and trust. The domain's unclear WHOIS status warrants further verification for complete business credibility assessment.

Security posture

The website exhibits a solid security posture with HTTPS enforced and multiple security headers implemented, including HSTS, CSP, and X-Frame-Options. The presence of CSRF protection cookies and secure session handling reflects adherence to best practices. Cookie consent is managed transparently via Cookiebot, enhancing privacy compliance. However, the lack of published security policies, incident response contacts, and vulnerability disclosure mechanisms represents a gap in security transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the analyzed content. Overall, the security maturity is good but could be improved by publishing explicit security documentation and providing clear security contact channels.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency and user trust.
  2. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Add clear and verified contact information including emails and phone numbers for general and security inquiries.
  4. Ensure terms of service are available and easily accessible to users to clarify legal and usage conditions.
  5. Regularly review and audit third-party scripts and cookies to minimize privacy risks and improve compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
telc GmbH
Description
Sprachprüfungen, Lernmaterialen und Trainings. Für Beruf, Integration und Hochschulen. Zertifikate von A1 bis C2 - jetzt informieren.
Key services
language examinations, certificates from A1 to C2, learning materials, training for professional and integration purposes
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, Bootstrap Package, FontAwesome, Google Tag Manager, Matomo Analytics, Cookiebot Consent Management
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF protection cookie (XSRF-TOKEN)
  • Cookie consent management
  • Session management with secure cookies

Analytics and tracking

Services
Google Analytics, Matomo
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google, YouTube
Tracking pixels
Matomo
Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content in German language.
  2. Uses modern CMS TYPO3 with good technical implementation.
  3. Comprehensive cookie consent and privacy compliance mechanisms in place.
  4. No explicit contact emails or phone numbers found in the provided HTML snippet.
  5. No WHOIS data available, which reduces domain trustworthiness score.
  6. No visible security.txt or vulnerability disclosure page.
  7. No explicit terms of service page detected.
  8. Extensive use of Google and YouTube tracking cookies and marketing tools.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built on a robust TYPO3 CMS framework with a modern front-end stack including Bootstrap and FontAwesome, ensuring responsive and accessible design. Integration with Google Tag Manager and Matomo indicates advanced analytics capabilities. Cookiebot is used for comprehensive cookie consent management, reflecting strong privacy compliance. Performance is moderate with asynchronous loading of scripts and optimized CSS. Accessibility and SEO are well addressed through proper meta tags, language attributes, and structured content. No critical technical debts or outdated libraries were identified. Hosting details are not explicit, but the presence of custom subdomains suggests a managed hosting environment. Opportunities exist to enhance technical documentation and security transparency.
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

Earlier scans of this domain

  1. 69/100Medium27 findingsView report
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