Skip to main content

Security report for tallinnavesi.ee

Tallinna Vesi · Energy · Estonia

High risk. 10 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

40/100

Risk levelHigh

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

Tallinna Vesi is a well-established water utility company based in Estonia, primarily serving the Tallinn region with water supply and wastewater treatment services. The company demonstrates a strong market position supported by comprehensive service offerings including water purification, meter installation, and customer self-service portals. Their website reflects a professional digital presence with multilingual support and investor relations, indicating a mature business model focused on transparency and customer engagement. Technically, the site is built on WordPress with modern plugins and scripts, ensuring good performance and SEO optimization. Security posture is robust with HTTPS enforcement and ISO certifications, although improvements can be made in security headers and incident response transparency. Privacy compliance is mostly adequate but lacks a visible cookie consent mechanism, which should be addressed to fully comply with GDPR requirements. Overall, the website and domain data indicate a trustworthy and credible organization with a solid digital infrastructure.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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

10 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

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

    • 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';…

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

Keep watching tallinnavesi.ee

This scan found 30 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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

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
62
Security headers
15
Email security
70
DNS health
60
Network security
20
GDPR outside view
10
Average
40

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

The company operates in the energy sector as a critical utility provider, targeting residential and commercial customers in Tallinn. Their business model revolves around regulated water services with additional digital self-service capabilities enhancing customer experience. The presence of investor relations and financial reporting sections suggests a publicly accountable entity with transparent governance. Partnerships with local GIS services and a dedicated customer portal indicate a well-integrated ecosystem. Growth is supported by infrastructure investments and sustainability initiatives, positioning Tallinna Vesi as a leader in environmental responsibility within their market. The company’s long domain age and consistent WHOIS data reinforce their established market presence.

Security posture

Tallinna Vesi maintains a strong security posture evidenced by ISO 27001 certification and HTTPS usage. The integration of Google reCAPTCHA on forms reduces automated abuse risks. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options represents an area for enhancement. No vulnerabilities or exposed sensitive data were detected in the analysis. Incident response contact details are not publicly listed, which could hinder timely reporting and mitigation of security incidents. GDPR compliance is generally observed but could be improved with a clear cookie consent mechanism. Overall, the security maturity is good but can be elevated with targeted improvements.

Recommendations

  1. Implement comprehensive security headers (CSP, HSTS, X-Frame-Options) to strengthen defense-in-depth.
  2. Add a visible cookie consent banner to ensure full GDPR compliance and user transparency.
  3. Publish clear incident response and abuse contact information to facilitate security issue reporting.
  4. Conduct regular third-party script audits to mitigate risks from external dependencies.
  5. Enhance accessibility features to improve inclusivity and compliance with standards.

Contact details published on the site

Addresses
Legal name
AS Tallinna Vesi
Registration number
10257326
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tallinna Vesi
Description
Tallinna Vesi is a water utility company providing water supply and wastewater services primarily in Tallinn, Estonia. The company focuses on water purification, wastewater treatment, and infrastructure maintenance.
Key services
Water supply, Wastewater treatment, Water meter installation and remote reading, Customer billing and self-service, Environmental and sustainability initiatives
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO plugin, jQuery, Swiper.js, Google reCAPTCHA, Google Fonts
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA integration on forms
  • ISO 27001 certification

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented in Estonian with multilingual support (EN, RU).
  3. Clear corporate branding and consistent navigation structure.
  4. Use of modern web technologies and SEO best practices.
  5. Contact information and corporate data are transparent and verifiable.
  6. Security posture is strong with ISO certifications and HTTPS, but could improve on security headers and incident response transparency.
  7. No explicit cookie consent mechanism detected, which may be a GDPR compliance gap.
  8. Social media presence on Facebook, Instagram, LinkedIn is active and linked.
  9. WHOIS data supports legitimacy and long-term operation.
Technical notes

Notes

The website leverages WordPress CMS with Yoast SEO and jQuery, ensuring a familiar and maintainable platform. Use of Google Fonts and Swiper.js enhances visual appeal and interactivity. Google Analytics and Tag Manager are employed for user behavior tracking, indicating moderate data collection practices. Performance is moderate with room for optimization, particularly in mobile responsiveness and accessibility. Hosting and domain registration through Zone Media OÜ align with regional infrastructure providers. The site architecture is clear with well-structured navigation and multilingual support, facilitating user engagement. Technical debt appears low, but security header implementation and cookie consent mechanisms represent modernization opportunities.
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

Reviews of this site

Share your experience with tallinnavesi.ee. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review tallinnavesi.ee.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.