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Security report for mullvad.net

Mullvad VPN AB · Technology · Sweden

Medium risk. 3 critical or high findings in GDPR outside view and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Mullvad VPN AB is a well-established Swedish company founded in 2008 that provides privacy-focused VPN services aimed at protecting users from mass surveillance, censorship, and data collection. Their business model is subscription-based with a fixed monthly fee, emphasizing anonymity by not requiring personal information for account creation. The company offers a suite of privacy tools including a VPN, a privacy-focused browser, encrypted DNS, and browser extensions. Technically, the website is built on modern frameworks such as SvelteKit, optimized for performance and mobile use, with excellent content quality and clear navigation. Security posture is strong with HTTPS enforced, domain transfer protections, and privacy-respecting practices, though DNSSEC is not enabled and some security headers could be improved. The site shows minimal tracking and no advertising, aligning with their privacy ethos. Overall, Mullvad VPN demonstrates high business credibility and trustworthiness with comprehensive legal policies and transparent contact information.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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. GDPR outside view

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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. 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 mullvad.net

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

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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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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
75
Email security
70
DNS health
85
Network security
100
GDPR outside view
68
Average
73

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

Mullvad VPN occupies a niche in the privacy and security technology sector, targeting privacy-conscious internet users globally. Their competitive advantage lies in their strict no-logs policy, anonymous account creation, and open-source ethos. Revenue is generated through straightforward subscription fees without upselling or intrusive marketing. The company maintains a strong partnership ecosystem including payment processors like PayPal. Growth indicators include multi-language support and a presence on privacy-respecting social platforms. Strategic observations highlight their commitment to transparency and privacy as key differentiators in a crowded VPN market.

Security posture

The security maturity of Mullvad VPN is high, with enforced HTTPS, domain transfer lock, and use of GPG keys for secure communication. The absence of DNSSEC and some missing security headers represent moderate gaps but do not critically undermine security. Incident response mechanisms are in place with clear vulnerability reporting channels. Privacy compliance is robust with comprehensive policies and minimal data collection. No vulnerabilities or exposed sensitive data were detected in the website content. The security culture is evident in the provision of onion services and open-source transparency.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Implement and display a cookie consent mechanism to fully comply with GDPR cookie requirements.
  3. Add standard security headers such as Content Security Policy (CSP), Strict-Transport-Security (HSTS), and X-Frame-Options to improve defense-in-depth.
  4. Consider publishing a security.txt file to facilitate vulnerability disclosures and improve transparency.
  5. Maintain and promote the use of open-source tools and privacy features to strengthen trust and community engagement.

Contact details published on the site

Addresses
Legal name
Mullvad VPN AB
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mullvad VPN AB
Description
Mullvad VPN fights for a free internet free from mass surveillance, censorship, and personal data collection. They offer VPN services, a privacy-focused browser, encrypted DNS, and browser extensions to protect user privacy online.
Key services
VPN service, Privacy-focused browser, Encrypted DNS, Browser extension
Content quality
excellent
Branding
consistent

Technology

Stack
SvelteKit, JavaScript, CSS, SVG
Frameworks
SvelteKit
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Client transfer prohibited domain status
  • No personal data collection
  • Use of GPG key for secure communication
  • Onion service available

Analytics and tracking

Tracking level
minimal
Privacy practices
excellent

Advertising

Transparency
excellent

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 emphasis on privacy and anonymity
  3. No personal data collection or tracking evident
  4. Multiple language support available
  5. Clear and comprehensive legal and privacy documentation
  6. Use of modern web technologies and frameworks
  7. Presence of onion service for enhanced privacy
  8. No advertising or tracking scripts detected
Technical notes

Notes

The website uses a modern tech stack centered on SvelteKit, delivering fast performance and excellent mobile optimization. The infrastructure appears well-maintained with a reputable registrar and domain management practices. The site is SEO optimized with proper meta tags and structured data. There is no evidence of technical debt or legacy technologies. Hosting details are limited but likely involve CDN usage for static assets. Accessibility features such as skip links and ARIA roles are present, enhancing usability. Overall, the technical implementation supports the business goals effectively with minimal risks.
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

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