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Security report for strato.de

STRATO GmbH · Technology · Germany

Low risk. 1 critical or high finding in Security headers.

Security score

80/100

Risk levelLow

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

STRATO GmbH is a leading German web hosting and cloud services provider offering a broad range of products including domain registration, email hosting, website builders, WordPress hosting, cloud storage, and online marketing tools. The company targets small and medium businesses and individuals seeking an easy and professional web presence. STRATO holds a strong market position in Germany, evidenced by its Service Champion 2024 award and ISO 27001 certification. The website is professionally designed, mobile-optimized, and provides clear navigation and comprehensive content about its services. Technically, STRATO employs a modern technology stack including Strapi CMS, JavaScript frameworks, and integrates marketing and analytics tools such as Google Tag Manager, Kameleoon, and Mouseflow. Hosting is performed in German data centers with a focus on security and environmental sustainability, using 100% green energy. The site enforces HTTPS and implements strong security headers, reflecting a mature security posture. Security-wise, the company demonstrates good practices including GDPR compliance, cookie consent management, and ISO 27001 certification. However, there is no publicly available incident response or vulnerability disclosure information, which could be improved. No critical vulnerabilities or exposed sensitive data were detected. Overall, the risk profile is low with strong trust indicators. Recommendations include publishing explicit incident response contacts, adding a security.txt file for vulnerability reporting, and maintaining transparency on data retention. These steps would enhance trust and security culture further.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

1 finding rated critical or high. Fix these first.

  1. 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 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';…

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Keep watching strato.de

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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
100
Security headers
45
Email security
72
DNS health
70
Network security
100
GDPR outside view
95
Average
80

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 strato.de, from OffSeq Breach.

Total records
97,983
Employees
0
Customers
97,929
Third parties
54
Weak passwords
10%

220 subdomains 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 strato.de.

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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

STRATO operates primarily in the technology sector as a web hosting and cloud services provider. Its business model revolves around subscription-based hosting services, domain sales, and value-added online marketing tools. The company serves a broad customer base including individuals and SMEs, focusing on ease of use and comprehensive service offerings. STRATO's competitive advantages include ISO 27001 certification, German data center hosting ensuring GDPR compliance, and a strong brand presence supported by awards and sustainability initiatives. The company has an ecosystem of subsidiaries across Europe and partners such as Cronon GmbH. Growth indicators include continuous product innovation and strong customer service recognition.

Security posture

STRATO exhibits a mature security posture with enforced HTTPS, comprehensive cookie consent mechanisms, and ISO 27001 certification. The hosting infrastructure is located in Germany, ensuring compliance with strict European data protection laws. Security headers and best practices are implemented, and no vulnerabilities or exposed sensitive data were found. However, the absence of publicly available incident response contacts and vulnerability disclosure mechanisms represents a compliance gap. The company should consider enhancing transparency and readiness for security incidents to align with best practices and regulatory expectations.

Recommendations

  1. Publish clear incident response and abuse contact information on the website.
  2. Implement and publish a security.txt file to facilitate vulnerability disclosures.
  3. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  4. Enhance accessibility features for cookie consent and other interactive elements.
  5. Provide detailed data retention policies and privacy notices to improve transparency.

Contact details published on the site

Addresses
Legal name
STRATO GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
STRATO GmbH
Description
STRATO offers hosting, cloud storage, homepage builder, webshop, domain registration, email services, and online marketing tools.
Key services
Domain registration, Email hosting, Web hosting, WordPress hosting, Cloud storage (HiDrive), Online marketing tools, Server rental
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Strapi CMS, Genesys chat, Google Tag Manager, Kameleoon, Mouseflow
Frameworks
Strapi
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • ISO 27001 certified
  • Cookie consent with granular controls
  • Data hosted in Germany under GDPR compliance

Analytics and tracking

Services
Mouseflow, Google Tag Manager, Kameleoon
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Mouseflow, Kameleoon
Marketing tools
Kameleoon, Genesys
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 no blocking or WAF challenges.
  2. Strong focus on GDPR compliance and user consent management.
  3. Use of multiple modern tracking and marketing tools with opt-in consent.
  4. Clear business and contact information with structured data.
  5. Strong branding and consistent design across site.
  6. Hosting and data centers located in Germany with ISO 27001 certification.
  7. No visible security vulnerabilities or exposed sensitive data.
  8. No incident response or vulnerability disclosure information publicly available.
Technical notes

Notes

The website is built using the Strapi CMS platform with a modern JavaScript-based frontend. It integrates multiple third-party services for analytics, marketing, and customer support, including Google Tag Manager, Kameleoon, Mouseflow, and Genesys chat. Hosting is managed by STRATO itself in German data centers with a focus on energy efficiency and sustainability. The site is mobile-optimized, fast-loading, and SEO-friendly with proper meta tags and structured data. Technical debt appears minimal, and the infrastructure supports scalability and security. Opportunities exist to further modernize consent management and incident response 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. 76/100Low26 findingsView report
  2. 72/100Medium21 findings · partial scanView report
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