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Security report for tr.ee

Linktree Pty Ltd · Technology · Australia

Medium risk. 3 critical or high findings in Security headers, Email security and 1 other check.

Security score

72/100

Risk levelMedium

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

tr.ee is a URL shortening service operated by Linktree Pty Ltd, an established Australian technology company founded in 2010. The website offers secure, short, and memorable links with tracking and analytics features, targeting general internet users and businesses seeking link management solutions. The platform is built on modern web technologies including React and Next.js, hosted likely on AWS infrastructure, and integrates Google Tag Manager and OneTrust for analytics and consent management. The site demonstrates good digital maturity with fast performance, mobile optimization, and accessibility considerations. Security posture is strong with HTTPS enforced and consent mechanisms in place, though explicit security policies and incident response contacts are not publicly disclosed. Overall, the website is professional, trustworthy, and compliant with privacy regulations, making it a reliable service in the URL shortening market.

Scanned

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

3 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 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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

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

Keep watching tr.ee

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

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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
72
Security headers
55
Email security
50
DNS health
70
Network security
100
GDPR outside view
83
Average
72

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

Linktree Pty Ltd positions tr.ee as a trusted URL shortening brand within its portfolio, leveraging its established market presence since 2010. The business model focuses on providing link shortening and analytics services, appealing to a broad audience including individuals and enterprises. The company maintains a consistent brand identity and offers comprehensive legal and privacy documentation, enhancing credibility. The integration with Google Tag Manager and OneTrust indicates a mature marketing and compliance strategy. The absence of direct contact emails or phone numbers suggests a preference for digital contact channels, likely to streamline support. The parent company relationship with Linktree strengthens market positioning and trust. No suspicious domains or partners were identified, indicating a clean partnership ecosystem.

Security posture

The website enforces HTTPS and employs security best practices such as consent management through OneTrust, reducing privacy risks. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the lack of a publicly available security policy or incident response contact limits transparency in security governance. No vulnerability disclosure program or security.txt file was found, which could be improved to encourage responsible vulnerability reporting. Overall, the security posture is solid for a public-facing web service, but could benefit from enhanced communication of security policies and incident handling procedures to build further trust.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publicize a vulnerability disclosure program or security.txt file.
  4. Enhance transparency around data retention policies and user privacy controls.
  5. Continue monitoring and updating third-party libraries to avoid vulnerabilities.

Contact details published on the site

Addresses
Legal name
Linktree Pty Ltd
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Linktree Pty Ltd
Description
tr.ee by Linktree simplifies sharing with secure, short, and memorable links. Track performance and shorten unlimited URLs effortlessly.
Key services
URL shortening, Link tracking and analytics, Secure and memorable short links
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, AWS DNS (Amazon Route 53), Google Tag Manager, OneTrust (consent management)
Frameworks
Next.js, React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Consent management via OneTrust
  • No exposed sensitive data in HTML
  • Secure input form for URL shortening

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
OneTrust (consent management)
Transparency
good

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. Clear and comprehensive privacy, cookie, and terms policies are present.
  3. No direct company emails or phone numbers found in the HTML content.
  4. Contact form and physical address provided in footer.
  5. Modern React/Next.js technology stack with AWS hosting inferred.
  6. Good security posture with HTTPS and consent management.
  7. No explicit security policy or incident response contacts publicly listed.
  8. No vulnerability disclosure or security.txt found.
  9. Content is safe and suitable for general audiences.
  10. Strong branding consistency and professional presentation.
Technical notes

Notes

The website is built using React and Next.js frameworks, indicating a modern and scalable front-end architecture. Hosting appears to be on AWS, supported by the use of AWS DNS servers. The site loads quickly and is optimized for mobile devices, with good accessibility features. SEO is supported by comprehensive meta tags including Open Graph and Twitter cards. Consent management is handled by OneTrust scripts, ensuring compliance with privacy regulations. No CMS was detected, suggesting a custom or headless approach. The technical implementation is robust with no visible technical debt or performance bottlenecks, positioning the platform well for future growth and feature expansion.
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. 61/100Medium34 findingsView report
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