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Security report for tailscale.com

Tailscale Inc. · Technology · United States

Low risk. 2 critical or high findings in Security headers.

Security score

81/100

Risk levelLow

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

Tailscale Inc. is a technology company specializing in secure VPN services leveraging the WireGuard® protocol to provide seamless, point-to-point connectivity for businesses and enterprises. The company positions itself as a modern alternative to legacy VPNs, focusing on ease of deployment, security, and zero trust networking principles. Their market presence is strong, trusted by over 10,000 companies, and they offer a comprehensive suite of networking solutions including multi-cloud and site-to-site networking. The website reflects a mature digital presence with professional design, clear navigation, and extensive content tailored to technical and business audiences. Technically, the website is built on modern frameworks such as Next.js and React, hosted on AWS infrastructure, and integrates multiple analytics and marketing tools including Google Analytics, Microsoft Clarity, Hotjar, and various ad networks. The site is optimized for performance, mobile responsiveness, and accessibility, demonstrating a high level of digital maturity. Security best practices are observed with HTTPS enforcement, security headers, and no visible vulnerabilities, although DNSSEC is not enabled and no explicit security policy or incident response contact is published. The security posture is strong with good SSL configuration and use of a secure VPN protocol. However, the absence of a dedicated security contact or vulnerability disclosure mechanism is a minor gap. Privacy compliance is well addressed with clear privacy and cookie policies and GDPR indicators. The domain WHOIS data is consistent and legitimate, supporting the company's credibility. Overall, Tailscale presents a low-risk profile with a robust business model, strong technical infrastructure, and good security hygiene. Strategic recommendations include enabling DNSSEC, publishing a security policy and vulnerability disclosure page, and providing direct security contact information to enhance trust and compliance.

Scanned

This is an earlier scan of tailscale.com. View the latest report

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

2 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';…

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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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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
95
Security headers
30
Email security
85
DNS health
90
Network security
100
GDPR outside view
83
Average
81

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 tailscale.com, from OffSeq Breach.

Total records
40
Employees
0
Customers
36
Third parties
4
Weak passwords
10%

3 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for tailscale.com.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Tailscale operates in the technology sector, providing VPN and secure networking solutions primarily targeting enterprises and technical professionals. Their competitive advantage lies in leveraging WireGuard® technology for fast, secure, and easy-to-deploy VPN services. The business model is SaaS-based, generating revenue through subscriptions and enterprise contracts. The company has a growing customer base exceeding 10,000 companies, indicating strong market adoption. Partnerships and integrations with cloud providers and enterprise platforms enhance their ecosystem. The website content and structure reflect a focus on technical decision-makers such as IT, security, and DevOps professionals. Growth indicators include comprehensive use cases, role-based solutions, and active marketing via multiple channels. The company maintains a consistent brand and professional online presence, supporting its market position as a trusted VPN provider.

Security posture

Tailscale demonstrates a mature security posture with HTTPS enforced, strong SSL configuration, and multiple security headers implemented. The use of WireGuard® VPN protocol indicates a commitment to modern cryptographic standards. No exposed sensitive data or vulnerable libraries were detected in the website content. However, the absence of a published security policy, incident response information, or vulnerability disclosure mechanism represents an area for improvement. Privacy policies are comprehensive and GDPR compliant, but direct security contact channels such as security@tailscale.com are not found. The domain registration is well-managed with prohibitive statuses to prevent unauthorized changes. Overall, the security maturity is high, but transparency in security operations could be enhanced to improve trust and compliance.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response page to improve transparency.
  3. Establish and publicize a vulnerability disclosure program or security.txt file.
  4. Provide direct security contact emails (e.g., security@tailscale.com) for reporting issues.
  5. Regularly review and audit third-party scripts and tracking tools for security risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tailscale Inc.
Description
Securely connect to anything on the internet with Tailscale. Deploy a WireGuard®-based VPN to achieve point-to-point connectivity that enforces least privilege.
Key services
WireGuard VPN deployment, Secure device connectivity, Zero Trust Networking, Multi-cloud and site-to-site networking
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Google Analytics, Microsoft Clarity, Hotjar, Bing Ads, LinkedIn Insight Tag, Reddit Pixel, RudderStack
Frameworks
Next.js
Platforms
AWS (inferred from DNS nameservers)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of WireGuard VPN protocol
  • No exposed sensitive data in HTML
  • Security-related headers present

Analytics and tracking

Services
Google Analytics, Microsoft Clarity, Hotjar, RudderStack
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Bing Ads
Tracking pixels
Microsoft Clarity, Hotjar, LinkedIn Insight Tag, Reddit Pixel, RudderStack
Marketing tools
RudderStack
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is comprehensive and focused on VPN and secure networking solutions.
  3. Strong use of modern web technologies and analytics tools.
  4. No signs of blocking or WAF interference.
  5. Privacy and cookie policies are present and GDPR compliant.
  6. No direct security contact or vulnerability disclosure page found.
  7. Domain registration details support legitimacy and trust.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, hosted on AWS infrastructure as inferred from DNS nameservers. It integrates multiple analytics and marketing tools such as Google Analytics, Microsoft Clarity, Hotjar, Bing Ads, LinkedIn Insight Tag, Reddit Pixel, and RudderStack, indicating a sophisticated marketing and data collection setup. The site is optimized for performance and mobile responsiveness, with good accessibility and SEO practices observed. No CMS is detected, suggesting a custom-built solution. The technical stack and infrastructure support a fast and reliable user experience, though the use of numerous third-party scripts requires ongoing security monitoring to mitigate potential 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

Earlier scans of this domain

  1. 81/100Low24 findingsView report
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