OSTSEEgutachter.de, operated by Sachverständigenbüro Hartmut Häusler, is a specialized real estate appraisal and consulting firm based in Rostock, Germany. The company offers a broad range of services including property valuation, mold inspection, building biology, thermography, and measurement services. With multiple certifications such as DIN EN ISO/IEC 17024, DEKRA, and HypZert, the business positions itself as a trusted expert in the Mecklenburg-Vorpommern region and surrounding federal states. The website reflects a professional and well-structured digital presence, targeting private clients, banks, and courts requiring certified appraisal services.
Scanned ·
NIS2 and GDPR posture
GDPR outside view
28/ 100 · High
Checks completed
7of 7
NIS2 Art. 21(2)
a(a) Risk analysis and security policies: Not visible from outside
b(b) Incident handling: One indicator
c(c) Business continuity, backups and crisis management: Not visible from outside
d(d) Supply chain security: Not visible from outside
e(e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
f(f) Assessing the effectiveness of security measures: Not visible from outside
g(g) Cyber hygiene and security training: Not visible from outside
h(h) Cryptography and encryption: Partly checked
i(i) HR security, access control and asset management: One indicator
j(j) Multi-factor authentication and secured communications: Not visible from outside
Partly checked
One indicator
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
5 findings rated critical or high. Fix these first.
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
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"
This scan found 25 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.
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
100
Security headers
35
Email security
55
DNS health
65
Network security
100
GDPR outside view
28
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 ostseegutachter.de, from OffSeq Breach.
No leaked records found
Breach holds no records for ostseegutachter.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Business context
Business profile
The company leverages its certifications and long-standing experience (over 17 years) to maintain a competitive edge in the regional real estate appraisal market. Its business model focuses on service provision to individuals and financial institutions, with a clear emphasis on compliance and quality assurance. Partnerships with certification bodies and related service providers enhance credibility. The website content and structured data reinforce the company's market positioning and trustworthiness.
Security posture
The website employs HTTPS with a valid SSL certificate and uses service workers to enhance user experience. However, it lacks explicit security headers and a published security policy or incident response contact. No vulnerabilities or exposed sensitive data were detected. The security posture is solid for a small business website but could be improved by adding security headers and a vulnerability disclosure policy.
Recommendations
Implement HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to enhance protection against common web attacks.
Publish a dedicated security policy and incident response contact information to improve transparency and preparedness.
Consider adding a security.txt file to facilitate responsible vulnerability disclosure.
Enhance accessibility features to improve compliance and user experience for all visitors.
Maintain and regularly update certifications and trust indicators on the website to reinforce business credibility.
JavaScript, jQuery (implied by usage of $.DM.events), Flexslider, Skrollr, Service Workers, Cloudfront CDN
Platforms
1AND1_EU_PROD hosting platform
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good
Security
Observed score
85/100
Good practices seen
HTTPS enforced (canonical URL is https)
Service worker registered for PWA
No exposed sensitive data in HTML
No vulnerable libraries detected
Analytics and tracking
Tracking level
minimal
Privacy practices
good
Advertising
Transparency
basic
Site quality
Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high
Key observations
Website is professionally designed and content-rich for a small real estate appraisal business.
Multiple certifications and trust seals are prominently displayed.
Contact information is clear and consistent across page and structured data.
No signs of malicious or suspicious activity.
No social media links detected in provided content.
Cookie consent banner present and GDPR compliance indicated.
No explicit security policy or incident response info found.
No forms detected in provided HTML snippet.
Use of modern web technologies and service workers for PWA support.
Technical notes
Notes
The website is built on the Duda platform, utilizing JavaScript libraries such as Flexslider and Skrollr for UI effects. It uses service workers for PWA capabilities and is hosted on a 1&1 IONOS infrastructure with Cloudfront CDN for content delivery. The site is mobile-optimized with responsive design and includes SEO best practices like meta tags and structured data. Performance is moderate, with room for optimization in loading speed and accessibility compliance.
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.
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