Skip to main content

Security report for nhnacademy.com

NHN Academy · Education · N/a

Medium risk. 6 critical or high findings in Security headers and GDPR outside view.

Security score

69/100

Risk levelMedium

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

NHN Academy is an educational institution focused on providing specialized software training, particularly in Backend development and AIoT technologies. The website presents a professional and consistent brand image, targeting software professionals and learners primarily in Korea. The business model centers on mentorship and skill development in software technologies, positioning itself as a regional training academy. Technically, the website is built using modern static site generation technologies including Hugo and Wowchemy, hosted on GitHub Pages. It employs Google Tag Manager for analytics and uses modern web fonts and CSS frameworks. The site is mobile optimized and performs well, though accessibility features are basic. From a security perspective, the site uses HTTPS but lacks important security headers and formal privacy or cookie policies. No contact information or incident response details are provided, which limits transparency and user trust. No vulnerabilities or exposed sensitive data were detected, but improvements in security headers and compliance documentation are recommended. Overall, the website is safe, professional, and functional with moderate risk due to missing privacy and security policy disclosures. Strategic enhancements in compliance and security posture would improve trust and user confidence.

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

6 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';…

  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 nhnacademy.com

This scan found 19 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. See sample alerts.

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
100
Security headers
30
Email security
70
DNS health
80
Network security
100
GDPR outside view
35
Average
69

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

NHN Academy operates in the education sector, focusing on software development training and mentorship. Its market positioning is as a specialized regional training provider, likely targeting students and professionals seeking skills in backend and AIoT technologies. The business model is educational services with no evident commercial e-commerce components. The website does not disclose revenue streams or partnerships. The use of GitHub Pages suggests a lean operational model. The absence of contact details and formal policies may limit business credibility. Growth potential exists in expanding digital presence and formalizing compliance and contact channels.

Security posture

The website demonstrates a basic security posture with HTTPS enabled and no visible vulnerabilities or exposed sensitive data. However, the absence of security headers such as Content-Security-Policy, X-Frame-Options, and others reduces defense-in-depth. Lack of privacy and cookie policies indicates compliance gaps with GDPR and other regulations. No incident response or vulnerability disclosure information is provided, limiting transparency. The use of Google Tag Manager introduces moderate tracking but without clear privacy disclosures. Overall, security maturity is moderate but can be significantly improved by adding security headers, formal policies, and contact information for security incidents.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with GDPR compliance details.
  2. Add essential security headers (Content-Security-Policy, X-Content-Type-Options, X-Frame-Options) to enhance protection.
  3. Provide clear contact information including security incident response contacts.
  4. Establish a vulnerability disclosure policy and publish a security.txt file.
  5. Enhance accessibility features and conduct regular security audits to maintain compliance and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NHN Academy
Description
지역 인재를 찾아서 길러내는 소프트웨어 전문기술 연수기관
Key services
Backend & AIoT training, Mentorship, Software development education
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Google Fonts (JetBrains Mono), FontAwesome, Wowchemy 5.9.3, Hugo static site generator, Google Tag Manager
Frameworks
Wowchemy, Hugo
Platforms
GitHub Pages
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • No visible exposed sensitive data
  • No vulnerable libraries detected

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is fully accessible with no blocking or WAF detected.
  2. WHOIS data is unavailable due to malformed request or privacy protection.
  3. No privacy, cookie, or terms of service policies found on the site.
  4. No contact emails or phone numbers explicitly provided.
  5. Website uses modern static site generator and is hosted on GitHub Pages.
  6. Google Tag Manager is used for analytics and tracking.
  7. No security headers detected; HTTPS is enabled.
  8. Content is educational, focused on software training and mentorship.
  9. No adult or questionable content detected.
  10. No forms or data collection fields detected in the HTML content.
Technical notes

Notes

The website is built on a modern static site generator (Hugo) with the Wowchemy theme, hosted on GitHub Pages, ensuring fast and reliable delivery. It uses Google Fonts and FontAwesome for styling and icons, and Google Tag Manager for analytics. The site is mobile responsive and SEO optimized with proper meta tags and Open Graph data. No broken links or errors were detected. However, the lack of security headers and privacy policies indicates technical debt in compliance and security best practices. The site could benefit from improved accessibility and enhanced security configurations.
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. 63/100Medium34 findingsView report
Reviews of this site

Share your experience with nhnacademy.com. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review nhnacademy.com.

Feedback on this report

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

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.