Skip to main content

Security report for refsite.info

Refsite · Energy · Czech Republic

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

60/100

Risk levelMedium

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

Refsite is an independent Czech portal dedicated to sharing references and reviews of companies, services, and products primarily in the energy sector. It serves as a trusted platform recommended by the Czech State Environmental Fund and the Nová zelená úsporám program, highlighting its credibility and market position. The website offers various services including company comparisons, access to specialists, energy savings catalogs, and calculators, targeting consumers and businesses interested in energy efficiency and renewable solutions. Technically, the website is built using modern web technologies such as React and Next.js, hosted partially on Google Cloud Storage for static assets. It employs Google Tag Manager for analytics and SmartSupp Chat for customer interaction, indicating a mature digital infrastructure. The site is mobile-optimized with good accessibility and SEO practices, providing a positive user experience. From a security perspective, the site uses HTTPS and shows good SSL configuration. However, it lacks explicit security headers and does not provide visible privacy or cookie policies, which are areas for improvement. No critical vulnerabilities or exposed sensitive data were detected. The WHOIS data is privacy protected but registered with a reputable registrar, supporting legitimacy. Overall, Refsite presents a professional and trustworthy online presence with strong business credibility in the energy sector. Strategic recommendations include enhancing privacy compliance, adding clear contact and incident response information, and implementing comprehensive security headers to further strengthen its security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

5 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 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  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

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching refsite.info

This scan found 22 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. See sample alerts.

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
42
Security headers
35
Email security
75
DNS health
80
Network security
40
GDPR outside view
85
Average
60

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

Refsite operates as a specialized online platform in the energy sector, focusing on aggregating and sharing verified references and reviews. Its market positioning is strengthened by endorsements from key Czech environmental and energy programs and partnerships with industry associations. The business model revolves around providing transparent and independent information to consumers and professionals, facilitating informed decision-making in energy-related purchases and services. The presence of strategic partners and a comprehensive category structure indicates a well-established ecosystem. Growth potential lies in expanding service offerings and improving compliance and security features to enhance user trust and regulatory adherence.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and no visible exposure of sensitive data. The use of reputable third-party services like Google Tag Manager and SmartSupp Chat is managed asynchronously to reduce risk. However, the absence of explicit security headers such as Content-Security-Policy, X-Frame-Options, and Referrer-Policy represents a gap in defense-in-depth strategies. There is no evidence of a published vulnerability disclosure policy or security.txt file, which limits transparency in incident response. Privacy compliance is weak due to missing privacy and cookie policies, potentially exposing the site to regulatory risks under GDPR. Overall, the security posture is adequate but requires enhancements in policy transparency and header implementation.

Recommendations

  1. Implement comprehensive privacy and cookie policies with user consent mechanisms to ensure GDPR compliance.
  2. Add and enforce security headers including Content-Security-Policy, X-Frame-Options, and Referrer-Policy to strengthen security posture.
  3. Publish a vulnerability disclosure policy and security.txt file to improve transparency and incident response readiness.
  4. Provide clear and accessible contact information including security and incident response contacts.
  5. Regularly audit and update third-party scripts and dependencies to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Refsite
Description
Nezávislý portál pro sdílení referencí a hodnocení firem, služeb a produktů
Key services
Reference sharing, Company and product reviews, Comparison of companies and offers, Access to specialists and project managers, Energy savings catalog, Calculators
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, SmartSupp Chat
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of modern JavaScript frameworks
  • Use of third-party chat support with asynchronous loading

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Marketing tools
SmartSupp Chat
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional, Czech-language portal focused on energy-related company and product references.
  2. No direct contact emails or phone numbers found in the HTML content.
  3. No explicit privacy, cookie, or terms of service pages detected in the provided content.
  4. Use of modern web technologies and frameworks (React, Next.js).
  5. Presence of strategic partners and industry associations logos enhances trust.
  6. No security.txt or vulnerability disclosure information found.
  7. No signs of adult or questionable content.
  8. WHOIS data is privacy protected with no public registrant info.
  9. No WAF or blocking mechanisms detected; content fully accessible.
Technical notes

Notes

The website leverages a modern technology stack centered on React and Next.js, enabling server-side rendering and improved performance. Static assets are served via Google Cloud Storage, indicating cloud-based hosting infrastructure. The site includes asynchronous loading of third-party scripts such as Google Tag Manager and SmartSupp Chat, optimizing load times and user experience. The design is responsive and accessible, with good SEO metadata including Open Graph tags and JSON-LD structured data for enhanced search engine visibility. However, performance could be further optimized by implementing advanced caching and security headers. The absence of a CMS suggests a custom or headless architecture, which may require dedicated maintenance resources.
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 refsite.info. 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 refsite.info.

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.