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Security report for sublimetext.com

Sublime HQ Pty Ltd · Technology · Australia

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

51/100

Risk levelMedium

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

Sublime Text is a sophisticated text editor designed for code, markup, and prose, developed and marketed by Sublime HQ Pty Ltd, an Australian company. The website presents a professional and polished interface targeting software developers and technical users, offering products such as Sublime Text and Sublime Merge. The company positions itself as a niche player in the developer tools market with a focus on performance and user experience. Technically, the website uses standard web technologies including HTML5, CSS3, and JavaScript, and supports multiple platforms including Windows, Mac, and Linux. The site is well-optimized for performance and mobile devices, with clear navigation and high-quality content. Security-wise, while the site uses HTTPS (implied by the URL), no explicit security headers were detected in the provided data, and no forms or user input fields are present, reducing attack surface. However, the absence of privacy and cookie policies and lack of WHOIS data transparency slightly reduce trust. Overall, the site is professional and trustworthy but could improve transparency and security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

8 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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';…

  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

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

Keep watching sublimetext.com

This scan found 25 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.

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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
72
Security headers
15
Email security
70
DNS health
75
Network security
40
GDPR outside view
35
Average
51

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

Sublime HQ Pty Ltd operates in the technology sector, focusing on software development tools. Their business model revolves around software licensing and sales, targeting developers and technical professionals globally. The company maintains a consistent brand presence with a clear product portfolio including Sublime Text and Sublime Merge. The website links to official social media and community forums, indicating an engaged user base. The lack of detailed WHOIS data and absence of contact emails or phone numbers on the main site suggests a preference for indirect contact channels, possibly via forums or support pages. The company appears to be a small-sized entity based in Australia with a focused product offering and a stable market position in the developer tools niche.

Security posture

The website demonstrates a moderate security posture. It uses HTTPS, which is mandatory for secure communication, but lacks visible security headers such as Content-Security-Policy or X-Frame-Options that enhance protection against common web attacks. No forms or input fields reduce the risk of injection or data leakage vulnerabilities. The absence of privacy and cookie policies indicates potential compliance gaps with GDPR and other privacy regulations. No incident response or security contact information is provided, which could hinder timely vulnerability reporting and mitigation. Overall, the security maturity is adequate for an informational product site but could be improved by adding security headers, privacy documentation, and clear security contacts.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies to improve compliance and user trust.
  2. Add standard security headers (Content-Security-Policy, X-Frame-Options, X-Content-Type-Options) to enhance web security.
  3. Provide clear contact information for security incidents and vulnerability disclosures.
  4. Improve WHOIS transparency or provide domain registration details to enhance legitimacy perception.
  5. Consider adding analytics with privacy-respecting configurations and cookie consent mechanisms.

Contact details published on the site

Addresses
Legal name
Sublime HQ Pty Ltd
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sublime HQ Pty Ltd
Description
Sublime Text is a sophisticated text editor for code, markup and prose. It offers a slick user interface, extraordinary features, and amazing performance. The company also offers Sublime Merge, a cross-platform Git client.
Key services
Sublime Text editor, Sublime Merge Git client
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript
Platforms
Windows, Mac, Linux
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • No forms detected to collect user input
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content and interactive elements
  2. No forms or direct contact emails visible on main page
  3. No privacy, cookie, or terms of service pages linked or detected
  4. Strong branding and product focus on developer tools
  5. No security headers detected in provided data
  6. No analytics or tracking scripts detected in provided HTML
  7. No suspicious or malicious content found
Technical notes

Notes

The website is built using modern web standards (HTML5, CSS3, JavaScript) with responsive design and good performance characteristics. It supports multiple platforms and uses client-side scripting for interactive features such as theme and OS selectors and animated screencasts. No CMS or third-party analytics/tracking scripts were detected, indicating a lightweight and focused technical stack. The site lacks advanced frameworks or libraries but is well-structured and optimized for user experience. Technical risks are minimal, though the absence of security headers and privacy mechanisms represents an area for improvement.
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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