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Security report for strato.se

STRATO GmbH · Technology · Sweden

Medium risk. 3 critical or high findings in Security headers, Email security and 1 other check.

Security score

72/100

Risk levelMedium

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

STRATO GmbH operates the website strato.se, providing a comprehensive suite of web hosting, domain registration, email services, cloud storage, and digital marketing tools primarily targeting the Swedish market. The company positions itself as a professional and environmentally conscious hosting provider, emphasizing green energy usage and strict data privacy with data centers located exclusively within the EU. The website is well-designed, mobile-optimized, and offers clear navigation and rich content tailored for small to medium businesses and individual professionals seeking to establish or enhance their online presence. Technically, the site leverages modern JavaScript frameworks and a Strapi CMS backend, integrating advanced consent management and analytics tools such as Jentis, Mouseflow, and Kameleoon. The infrastructure appears robust with ISO 27001 certification and a strong focus on GDPR compliance, including a detailed cookie consent mechanism and privacy policy. No security vulnerabilities or exposed sensitive data were detected, and HTTPS is enforced site-wide. While WHOIS data for the subdomain www.strato.se is not available, the overall domain legitimacy is supported by consistent branding, certifications, and trust signals. The absence of explicit incident response or vulnerability disclosure information is noted but does not detract significantly from the security posture. Overall, STRATO demonstrates a mature digital presence with a strong security and privacy focus, suitable for its target audience. Strategic recommendations include enhancing transparency by publishing incident response contacts and security headers, and maintaining continuous compliance with evolving data protection regulations.

Scanned

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

3 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"

  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

      SSL Certificate Expires Soon

      SSL certificate expires in 15 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

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

Keep watching strato.se

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

€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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

€39.90one-time

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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
85
Security headers
45
Email security
50
DNS health
70
Network security
100
GDPR outside view
83
Average
72

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

STRATO GmbH is a large European technology company specializing in web hosting and domain services. It holds a strong market position in Sweden with a broad portfolio including domain registration, email hosting, website builders, WordPress hosting, cloud storage, and digital marketing tools. The business model is primarily B2C and B2B, targeting small and medium enterprises and individual professionals. Revenue streams likely include subscription-based hosting plans, domain sales, and marketing services. The company emphasizes sustainability and data privacy as competitive advantages. Its partnership ecosystem includes Cronon GmbH and multiple country-specific STRATO domains, indicating a well-integrated group structure. Growth indicators include active marketing campaigns and continuous product innovation. The company maintains a professional online presence with consistent branding and trust certifications.

Security posture

STRATO exhibits a strong security posture with ISO 27001 certification and data centers located exclusively within the EU, ensuring compliance with stringent European data protection laws. The website enforces HTTPS and employs a comprehensive cookie consent mechanism aligned with GDPR requirements. Security best practices observed include the use of consent management platforms and avoidance of exposed sensitive data. However, explicit security headers (e.g., CSP, HSTS) were not detected in the provided data, and no public incident response or vulnerability disclosure policies were found. The absence of a published Data Protection Officer contact is a minor compliance gap. Overall, the security maturity is high, with room for improvement in transparency and header implementation to further harden the site against advanced threats.

Recommendations

  1. Publish explicit security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options to enhance protection against common web attacks.
  2. Provide clear incident response and vulnerability disclosure information on the website to improve transparency and facilitate responsible security reporting.
  3. Publish Data Protection Officer contact details to strengthen GDPR compliance and user trust.
  4. Regularly audit third-party scripts and tracking tools to ensure they comply with privacy policies and minimize user tracking.
  5. Maintain and communicate ongoing sustainability and data privacy initiatives to reinforce market differentiation and customer confidence.

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 domain registration, email, website building, web hosting, cloud storage, and digital marketing services primarily targeting Swedish customers.
Key services
Domain registration, Email hosting, Website builder (Sitebuilder), Web hosting including WordPress hosting, Cloud storage (HiDrive), Digital marketing tools
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Strapi CMS, Google Tag Manager, Mouseflow, Kameleoon, Jentis Consent Management
Frameworks
Strapi
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular controls
  • ISO 27001 certified data centers
  • Data stored exclusively in EU

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
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 challenge.
  2. Content is professional, well-structured, and localized in Swedish.
  3. Strong emphasis on GDPR compliance and cookie consent.
  4. Multiple trust signals including ISO 27001 certification and green energy usage.
  5. No explicit contact emails found on the main page; phone number and physical address provided.
  6. Use of modern JavaScript frameworks and consent management tools.
  7. No visible security vulnerabilities or exposed sensitive data.
  8. WHOIS data for www.strato.se subdomain not found, but overall domain legitimacy is high.
Technical notes

Notes

The website is built on a modern technology stack including Strapi CMS and various JavaScript libraries for analytics, consent management, and user experience enhancements. It uses asynchronous loading for performance optimization and integrates multiple marketing and tracking tools such as Google Tag Manager, Mouseflow, and Kameleoon. The site is mobile-optimized with responsive design and accessibility features, including keyboard navigation and ARIA labels. Hosting appears to be managed by STRATO's own certified data centers, ensuring control over infrastructure and compliance. Performance is fast with no broken elements detected. Opportunities exist to improve technical security by adding missing HTTP security headers and publishing more detailed security documentation.
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. 68/100Medium27 findingsView report
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