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Security report for iserv.de

IServ GmbH · Education · Germany

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

64/100

Risk levelMedium

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

IServ GmbH operates a leading digital school platform in Germany, offering a comprehensive suite of over 55 modules designed to facilitate school communication, organization, teaching, and IT management. The platform is GDPR-compliant and certified under ISO 27001, emphasizing data protection and security. IServ targets schools, administrators, teachers, students, and parents, providing flexible cloud deployment options tailored to various infrastructure needs. The company holds a strong market position with thousands of schools and millions of managed devices, supported by a professional and well-structured website with clear calls to action and extensive resources. Technically, the website employs modern JavaScript frameworks, integrates trusted analytics and marketing tools with user consent, and demonstrates excellent performance and mobile optimization. Security posture is robust, with HTTPS enforced, multiple certifications, and no visible vulnerabilities. Privacy compliance is well addressed with comprehensive policies and consent mechanisms. Overall, IServ presents a credible, professional, and secure digital education solution.

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

6 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  3. 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 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 iserv.de

This scan found 23 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.

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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
75
Security headers
55
Email security
70
DNS health
45
Network security
100
GDPR outside view
40
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

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 iserv.de, from OffSeq Breach.

Total records
24
Employees
0
Customers
22
Third parties
2
Weak passwords
21%

1 subdomain 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 iserv.de.

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

IServ GmbH is positioned as a key player in the German education technology sector, providing an integrated platform that addresses the digital transformation needs of schools. Their business model revolves around SaaS with flexible cloud hosting options, appealing to a broad customer base including schools and school districts. The company leverages certifications and compliance as competitive advantages, enhancing trust and market acceptance. Their partnership ecosystem includes educational academies and related service providers, supporting customer education and platform adoption. The website content and structure reflect a mature digital presence, supporting lead generation and customer engagement. Growth indicators include a large user base and device management scale. Strategic observations suggest continued focus on compliance, security, and user experience to maintain leadership.

Security posture

IServ demonstrates a mature security posture with ISO 27001 certification and compliance with German accessibility and data protection regulations. The platform is hosted in Germany, ensuring data sovereignty. The website enforces HTTPS and employs consent-based tracking, reflecting GDPR adherence. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, the absence of explicit incident response or vulnerability disclosure policies and security.txt files indicates areas for improvement in transparency and readiness. Overall, the security culture appears strong, but formalizing incident response communication channels would enhance trust and preparedness.

Recommendations

  1. Publish a dedicated incident response and vulnerability disclosure policy page to improve transparency and user trust.
  2. Implement and publish a security.txt file to facilitate responsible vulnerability reporting.
  3. Provide explicit contact information for security incidents, such as a security@ or abuse@ email address.
  4. Regularly review and audit third-party scripts and tracking tools to minimize potential vulnerabilities.
  5. Enhance documentation on data retention policies and user data lifecycle management to strengthen privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
IServ GmbH
Description
IServ GmbH provides a comprehensive, GDPR-compliant digital school platform with over 55 modules covering school communication, organization, teaching, network and device management, and identity management.
Key services
School communication (videoconferencing, messenger, email), Digital teaching tools, School organization (digital timetable, calendar, knowledge base), Network and device management including BYOD and MDM, Identity management and integrations
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Facebook Pixel, Usercentrics Consent Manager
Frameworks
Highlight.js for code highlighting
Platforms
Web platform, Mobile apps (iOS, Android, Huawei AppGallery)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • GDPR-compliant cookie consent
  • ISO 27001 certified ISMS
  • BITV accessibility compliance
  • Server located in Germany
  • No exposed sensitive data in HTML
  • Secure forms with CSRF protection implied

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel
Marketing tools
Usercentrics Consent Manager
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 and no blocking mechanisms.
  2. Strong focus on GDPR compliance and data protection.
  3. Comprehensive product offering for digital school management.
  4. Use of modern web technologies and tracking with user consent.
  5. Multiple certifications and trust seals displayed prominently.
  6. Clear calls to action for trial and contact.
  7. Social media presence on major platforms.
  8. No visible security or privacy red flags.
Technical notes

Notes

The website is built on a modern JavaScript-based frontend framework with modular components and responsive design, ensuring excellent mobile optimization and user experience. It integrates third-party analytics and marketing tools with a consent management platform, aligning with privacy regulations. Hosting appears to be managed by IServ or a German data center, supporting data sovereignty and performance. The site demonstrates good SEO practices with comprehensive meta tags and Open Graph data. Accessibility compliance is evidenced by BITV certification. No technical debt or outdated technologies were detected in the provided content. Opportunities exist to further enhance security transparency and incident readiness.
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. 64/100Medium31 findingsView report
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