Security report for lnk.to

Name: Dark-web exposure summary for lnk.to
Creator: OffSeq Breach

Linkfire A/S · Technology · Denmark

High risk. 15 critical or high findings in Network security, Security headers and 1 other check.

Security score

49/100

Risk levelHigh

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

Linkfire A/S operates a sophisticated SaaS platform specializing in smart links for music marketing, podcast promotion, and artist engagement. The company holds a strong market position, trusted by major music labels and over 50,000 artists globally. Their platform simplifies marketing workflows from pre-release to world tours, offering analytics and fan engagement tools. Technically, the website is built on HubSpot CMS with modern integrations such as Google Tag Manager and OneTrust for privacy compliance, reflecting a mature digital infrastructure. Security posture is robust with HTTPS, security headers, and cookie consent mechanisms, though explicit security policies and incident response details are not publicly available. Overall, the site demonstrates high professionalism, excellent content quality, and strong trust signals, though the absence of WHOIS data is a notable anomaly. Strategic recommendations include publishing detailed security policies, adding vulnerability disclosure mechanisms, and providing direct security contacts to enhance transparency and trust.

Scanned

NIS2 and GDPR posture

GDPR outside view: 88/ 100 · Low
Checks completed: 7of 7

NIS2 Art. 21(2)

(a) Risk analysis and security policies: Not visible from outside
(b) Incident handling: One indicator
(c) Business continuity, backups and crisis management: Not visible from outside
(d) Supply chain security: Not visible from outside
(e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
(f) Assessing the effectiveness of security measures: Not visible from outside
(g) Cyber hygiene and security training: Not visible from outside
(h) Cryptography and encryption: Partly checked
(i) HR security, access control and asset management: One indicator
(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

15 findings rated critical or high. Fix these first.

Network security
Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.
- Critical
  Critical Service Exposed: Telnet
  Port 23 (Telnet) is publicly accessible - Telnet - Unencrypted remote access
  What to do: Immediately restrict access to Telnet using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: SMB
  Port 445 (SMB) is publicly accessible - SMB - Windows file sharing, high risk
  What to do: Immediately restrict access to SMB using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: MSSQL
  Port 1433 (MSSQL) is publicly accessible - MSSQL - Database server
  What to do: Immediately restrict access to MSSQL using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: Oracle
  Port 1521 (Oracle) is publicly accessible - Oracle - Database server
  What to do: Immediately restrict access to Oracle using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: MySQL
  Port 3306 (MySQL) is publicly accessible - MySQL - Database server
  What to do: Immediately restrict access to MySQL using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: RDP
  Port 3389 (RDP) is publicly accessible - RDP - Remote Desktop, prime ransomware target
  What to do: Immediately restrict access to RDP using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: PostgreSQL
  Port 5432 (PostgreSQL) is publicly accessible - PostgreSQL - Database server
  What to do: Immediately restrict access to PostgreSQL using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: Redis
  Port 6379 (Redis) is publicly accessible - Redis - In-memory database
  What to do: Immediately restrict access to Redis using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- Critical
  Critical Service Exposed: MongoDB
  Port 27017 (MongoDB) is publicly accessible - MongoDB - NoSQL database
  What to do: Immediately restrict access to MongoDB using firewall or VPN
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- High
  High-Risk Service Exposed: FTP
  Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer
  What to do: Consider restricting access to FTP or implementing strong authentication
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- High
  High-Risk Service Exposed: RPC
  Port 135 (RPC) is publicly accessible - RPC - Windows RPC endpoint
  What to do: Consider restricting access to RPC or implementing strong authentication
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- High
  High-Risk Service Exposed: NetBIOS
  Port 139 (NetBIOS) is publicly accessible - NetBIOS - Windows file sharing
  What to do: Consider restricting access to NetBIOS or implementing strong authentication
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
- High
  High-Risk Service Exposed: Elasticsearch
  Port 9200 (Elasticsearch) is publicly accessible - Elasticsearch - Search engine
  What to do: Consider restricting access to Elasticsearch or implementing strong authentication
  References
  - NIS2 21(2)(e)
  - IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
  - NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
  - NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
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"
  References
  - CWE-1021
  - OWASP A06:2025
  - CAPEC-103
  - ASVS V3.4.6
  - OWASP Secure Headers: OWASP Secure Headers Project recommends X-Frame-Options: deny
  - RFC 7034
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 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
  References
  - CWE-326
  - OWASP A04:2025
  - Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048
  - NIS2 21(2)(h)
  - IR 2024/2690 9.2(b): Implementing Regulation (EU) 2024/2690, Annex point 9.2(b): Cryptography
  - NIST SC-13: NIST SP 800-53 Rev. 5 SC-13: Cryptographic Protection

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

Keep watching lnk.to

This scan found 31 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. The full timeline opens with your unlock code.

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: 65
Security headers: 45
Email security: 80
DNS health: 85
Network security: 0
GDPR outside view: 88
Average: 61
After the cap: 49

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 · found on this site
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 lnk.to, from OffSeq Breach.

Total records: 192
Employees: 0
Customers: 153
Third parties: 39
Weak passwords: 0%

11 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 lnk.to.

Select it in the checkout above.

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

Open in Breach Monitor on Breach

Technical appendix

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

Business context

Business profile

Linkfire's business model centers on providing digital marketing tools tailored to the music and podcast industries, leveraging smart links to drive fan engagement and analytics. Their competitive advantage lies in their established relationships with major labels and a large user base of artists. Revenue streams likely include subscription plans and enterprise services. The target customers are artists, labels, publishers, and advertisers seeking to optimize digital marketing campaigns. The company maintains a strong partnership ecosystem, including domains like lnk.to for publishers and corporate.linkfire.com for investor relations. Growth indicators include extensive client logos and a comprehensive service offering. Operationally, the company demonstrates a focus on user experience, privacy compliance, and marketing effectiveness.

Security posture

The website exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and cookie consent mechanisms aligned with GDPR. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a published security policy, incident response plan, or vulnerability disclosure program limits transparency. No direct security contact emails were found, which could hinder incident reporting and response. The use of third-party scripts like ClickCease and HubSpot analytics introduces potential risk vectors that require ongoing monitoring. Overall, the security maturity is good but could be improved by formalizing security governance documentation and communication channels.

Recommendations

Publish a dedicated security policy and incident response plan on the website.
Implement and publicize a vulnerability disclosure program or security.txt file.
Provide direct security contact emails such as security@linkfire.com or abuse@linkfire.com.
Regularly audit and update third-party scripts to mitigate supply chain risks.
Enhance accessibility features to improve compliance and user experience.

Contact details published on the site

Addresses

Rentemestervej 80, 2400 Copenhagen, Denmark (map, opens in a new tab)

Legal name

Linkfire A/S

Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company: Linkfire A/S
Description: Smart links for music marketing and podcast promotion. From your first single to your first world tour, Linkfire simplifies music and podcast promotion every step of the way. Trusted by major labels and over 50k artists.
Key services: Smartlinks creation, Music marketing, Podcast promotion, Analytics and measurement, Fan engagement tools
Content quality: excellent
Branding: consistent

Technology

Stack: HubSpot CMS, Google Tag Manager, OneTrust Cookie Consent, ClickCease, Google Fonts (Roboto)
Frameworks: HubSpot CMS
Platforms: Web
Performance: fast
Mobile: excellent
Accessibility: good
SEO: good

Security

Observed score

85/100

Good practices seen

HTTPS enforced
Cookie consent implemented
No exposed sensitive data in HTML
Use of security headers

Analytics and tracking

Services: HubSpot Analytics, Google Tag Manager
Tracking level: moderate
Privacy practices: good

Advertising

Ad networks: ClickCease
Tracking pixels: ClickCease
Marketing tools: HubSpot forms, OneTrust cookie consent
Transparency: good

Site quality

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

Key observations

Website is fully accessible with rich content and professional design.
Strong focus on music and podcast marketing solutions.
Use of modern marketing and analytics tools.
Comprehensive cookie and privacy consent mechanisms implemented.
No direct contact emails or phone numbers found on homepage; contact likely via forms.
WHOIS data unavailable, which is unusual for a major brand domain.
No security.txt or explicit security policy found.
No adult or questionable content detected.

Technical notes

Notes

The website is built on the HubSpot CMS platform, leveraging modern web technologies including Google Tag Manager for analytics and OneTrust for cookie consent management. The site is well-optimized for mobile devices and demonstrates fast loading times. SEO best practices are followed with proper meta tags and Open Graph data. The technical infrastructure supports a scalable SaaS business model with integrations for marketing automation and user engagement. No significant technical debt or outdated technologies were observed. Opportunities exist to further enhance accessibility and security documentation to align with industry best practices.

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.

OWASP Top 10:2025 (opens in a new tab)2025 (membership per CWE 4.20) · CC BY-SA 4.0
OWASP ASVS (opens in a new tab)5.0.0 · CC BY-SA 4.0
OWASP Web Security Testing Guide (opens in a new tab)latest (checklist.json, master) · CC BY-SA 4.0
OWASP Secure Headers Project (opens in a new tab)2026-10-18 · Apache-2.0
Mozilla Server Side TLS (intermediate) (opens in a new tab)6.0 · MPL-2.0
NIST SP 800-53 Rev. 5 (OSCAL catalog) (opens in a new tab)5.2.0 · Public domain (US Government work)
Directive (EU) 2022/2555 (NIS2) (opens in a new tab)OJ L 333, 27.12.2022 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
Commission Implementing Regulation (EU) 2024/2690 (opens in a new tab)OJ L, 18.10.2024 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
Regulation (EU) 2016/679 (GDPR) (opens in a new tab)OJ L 119, 4.5.2016 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
Directive 2002/58/EC (ePrivacy), consolidated (opens in a new tab)19.12.2009 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
RFC Editor metadata (opens in a new tab)per-RFC (obsolete RFCs rejected) · IETF Trust Legal Provisions (metadata only)
NIST CSRC, W3C TR, IETF Datatracker, EDPB, EUR-Lex CELLAR and gesetze-bayern.de (opens in a new tab)per document · Titles and links only
W3C WCAG 2.2 (opens in a new tab)W3C Recommendation (wcag.json) · W3C Software and Document License
Directive (EU) 2019/882 (European Accessibility Act) (opens in a new tab)OJ L 151, 7.6.2019 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
Directive (EU) 2016/2102 (Web Accessibility Directive) (opens in a new tab)OJ L 327, 2.12.2016 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)

Retrieved 2026-10-25

Earlier scans of this domain

13 Jul 202549/100High39 findingsView report

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Priority findings

Network security

Critical Service Exposed: Telnet

Critical Service Exposed: SMB

Critical Service Exposed: MSSQL

Critical Service Exposed: Oracle

Critical Service Exposed: MySQL

Critical Service Exposed: RDP

Critical Service Exposed: PostgreSQL

Critical Service Exposed: Redis

Critical Service Exposed: MongoDB

High-Risk Service Exposed: FTP

High-Risk Service Exposed: RPC

High-Risk Service Exposed: NetBIOS

High-Risk Service Exposed: Elasticsearch

Security headers

Missing X-Frame-Options header

SSL/TLS

Weak SSL Key Length

Keep watching lnk.to

Daily monitoring

Full report

Results by check

Security headers, 6 findings, score 45/100

SSL/TLS, 4 findings, score 65/100

Email security, 4 findings, score 80/100

DNS health, 2 findings, score 85/100

Network security, 14 findings, score 0/100

GDPR outside view, 1 finding, score 88/100

NIS2 outside view, Earlier method, rescan for details · not counted in the security score–