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Security report for strato.de

STRATO GmbH · Technology · Germany

Low risk. 2 critical or high findings in Security headers and Email security.

Security score

76/100

Risk levelLow

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

STRATO GmbH is a prominent German web hosting and cloud services provider offering a wide range of products including domain registration, email hosting, website building tools, server rentals, and online marketing solutions. The company targets primarily small to medium businesses and individual users in Germany, positioning itself as a leading player with strong customer service credentials and ISO 27001 certification. Their website reflects a mature digital presence with modern technologies and comprehensive service offerings. Technically, the site is built on Strapi CMS with integrations for analytics and customer support, optimized for performance and accessibility. Security posture is strong with HTTPS, certified data centers, and a detailed cookie consent mechanism, though explicit incident response contacts and vulnerability disclosure policies are not publicly visible. Overall, STRATO demonstrates a high level of professionalism, trustworthiness, and compliance with GDPR, making it a reliable choice in the hosting market.

Scanned

This is an earlier scan of strato.de. View the latest report

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

2 findings 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';…
  2. 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

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

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

Keep watching strato.de

This scan found 19 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
95
Security headers
45
Email security
50
DNS health
70
Network security
100
GDPR outside view
95
Average
76

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.

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

STRATO holds a strong market position in the German hosting industry, leveraging certifications and customer service awards to differentiate itself. Its business model focuses on B2C and B2B segments, offering scalable hosting and cloud solutions. The company maintains a broad partnership and subsidiary ecosystem across Europe, enhancing its reach. Revenue streams likely include subscription-based hosting plans, domain sales, and value-added marketing tools. The website's clear navigation and comprehensive product descriptions indicate a customer-centric approach. STRATO's commitment to sustainability and data protection further strengthens its brand image and market appeal.

Security posture

STRATO exhibits a mature security posture with ISO 27001 certified data centers and enforced HTTPS. The website implements a granular cookie consent mechanism aligned with GDPR requirements. Security best practices such as encrypted communications, secure hosting, and privacy policies are evident. However, the absence of a publicly accessible vulnerability disclosure policy or security.txt file and no explicit incident response contact details represent areas for improvement. No vulnerabilities or exposed sensitive data were detected in the analysis. Overall, STRATO maintains a robust security culture appropriate for its industry and customer base.

Recommendations

  1. Publish a dedicated vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Ensure all recommended security headers are explicitly set and documented for transparency.
  4. Enhance visibility of data protection officer contact information to improve GDPR compliance perception.
  5. Continue investing in security awareness and transparency to reinforce customer trust and compliance.

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, domains, email, and server solutions primarily targeting German customers.
Key services
Domain registration, Email hosting, Web hosting, WordPress hosting, Cloud storage (HiDrive), Server rental, Online marketing tools
Content quality
excellent
Branding
consistent

Technology

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

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • ISO 27001 certified data centers
  • Cookie consent with granular options
  • No exposed sensitive data in HTML
  • Use of security-focused products (Cyber Protect, Domain Guard)

Analytics and tracking

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

Advertising

Tracking pixels
Mouseflow, Kameleoon
Marketing tools
STRATO marketingRadar, STRATO rankingCoach, STRATO listingCoach, STRATO adCoach, E-Mail-Marketing-Tool
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 cookie consent mechanism with granular user controls.
  3. Comprehensive business and product offerings clearly presented.
  4. Multiple trust seals and certifications displayed prominently.
  5. Use of modern web technologies and analytics tools.
  6. Social media presence across major platforms.
  7. No visible security or privacy red flags in content or metadata.
Technical notes

Notes

The website is built using modern web technologies including Strapi CMS, JavaScript frameworks, and integrates third-party analytics and marketing tools such as Google Tag Manager, Mouseflow, and Kameleoon. The site is optimized for mobile devices and accessibility, with fast loading times and well-structured content. Hosting appears to be managed internally or via IONOS infrastructure, ensuring data residency in Germany. The technical implementation supports a professional user experience with no visible technical debt or performance bottlenecks. Opportunities exist to further enhance security header implementation and formalize vulnerability management processes.
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. 80/100Low23 findingsView report
  2. 72/100Medium21 findings · partial scanView report
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