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Security report for tlnk.io

Branch · Technology · United States

Partial score · DNS & email only

65/100

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

The website tlnk.io currently serves as a deprecated API endpoint for Branch services, returning a 403 error with a message directing users to Branch's developer documentation. Branch is a technology company specializing in tracking commerce, content lifecycle, and custom event tracking, with a domain registered since 2016 and headquartered in the US. The website content is minimal and inaccessible, indicating that this URL is no longer actively serving content or services directly. The technical infrastructure is hosted on AWS DNS servers, but lacks modern security features such as DNSSEC and security headers. No privacy or cookie policies are present, and no contact information or social media links are available on the page.

Scanned

This is an earlier scan of tlnk.io. View the latest report

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
Checks completed
6of 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

6 findings rated critical or high. Fix these first.

  1. 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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

    • High

      No SPF record found

      SPF helps prevent email spoofing

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

  2. GDPR outside view

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

    • 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

    • 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

    • 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

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

Keep watching tlnk.io

This scan found 19 issues across 5 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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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
77
Email security
40
DNS health
70
Network security
100
GDPR outside view
40
Average
65

Not counted

  • Security headers: did not complete in this scan.
  • 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

Branch operates in the technology sector providing SaaS solutions for tracking and analytics. The domain age and registrant information align with an established business model focused on developer tools and commerce tracking. The lack of accessible content on this domain suggests it may be a legacy or deprecated endpoint rather than a primary customer-facing site. No advertising or marketing tools are detected, indicating this domain is not used for direct customer engagement or sales. The company likely relies on other domains for business operations and customer interaction.

Security posture

The security posture of the domain is weak due to the absence of DNSSEC and security headers, which are important for protecting DNS integrity and mitigating common web attacks. The site uses HTTPS (implied by domain status and AWS hosting), but this cannot be fully confirmed from the data. The 403 error and API deprecation message indicate that the endpoint is no longer active, reducing the attack surface but also limiting functionality. No incident response or vulnerability disclosure information is available, and no privacy compliance measures are evident. Overall, the domain shows minimal security best practices and lacks transparency in security policies.

Recommendations

  1. Enable DNSSEC to enhance DNS security and prevent spoofing.
  2. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Provide clear privacy and cookie policies to improve compliance with GDPR and other regulations.
  4. Update or retire deprecated API endpoints to avoid confusion and potential security risks.
  5. Publish contact information and incident response details to improve trust and security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Generic detected. Website returns a 403 error with a message indicating API deprecation and no accessible content, indicating blocked or restricted access. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Company
Branch
Description
Branch provides services related to tracking commerce, content lifecycle, and custom events as indicated by the API deprecation message referencing Branch services.
Key services
tracking commerce, content lifecycle management, custom event tracking
Content quality
poor
Branding
moderate

Technology

Stack
AWS DNS, HTML5
SEO
poor

Security

Observed score
30/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
low

Key observations

  1. Website content is inaccessible due to API deprecation and 403 error.
  2. No privacy, cookie, or terms of service policies found.
  3. No contact information or forms available on the page.
  4. No security headers or DNSSEC enabled.
  5. Domain registration data is consistent and legitimate.
  6. Website appears to be a placeholder or deprecated API endpoint.
  7. No advertising or analytics scripts detected.
  8. No social media or external business contact links found.
  9. Content safety rating is safe with no adult content.
Technical notes

Notes

The website is hosted on AWS DNS infrastructure with multiple AWS name servers. The HTML content is minimal and only contains a JSON error message indicating API deprecation and a 403 Forbidden status. No CMS or frameworks are detected. The site lacks meta tags, SEO optimization, and accessibility features. No scripts or external libraries are loaded. The domain registration is consistent and appropriate for the business. Performance and mobile optimization cannot be assessed due to lack of content. The technical debt appears low but the site is effectively non-functional as a public-facing resource.
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. 65/100Medium27 findings · partial scanView report
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