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Security report for acrosspf.com

Technology · South Korea

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

Security score

59/100

Risk levelMedium

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

The website '아크로스 광고 시스템 ADN' is an online display advertising platform targeting Korean advertisers and marketers. It offers advanced targeting technologies to optimize advertising campaign performance. The site is built using modern web technologies such as Next.js and React, and integrates common analytics and marketing tools like Google Analytics and Google Tag Manager. However, the absence of WHOIS registration data raises concerns about the domain's legitimacy and trustworthiness. The site lacks visible privacy, cookie, and terms of service policies, which impacts its privacy compliance score. Security posture is moderate but could be improved by implementing security headers and formal vulnerability disclosure mechanisms. Overall, the website presents a professional front but requires enhancements in compliance and security transparency to strengthen trust and reduce risk.

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 acrosspf.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.

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
65
Security headers
15
Email security
70
DNS health
70
Network security
100
GDPR outside view
35
Average
59

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

The business operates in the technology sector, specifically in online advertising. It appears to be a small-sized entity focused on providing display advertising solutions with sophisticated targeting capabilities. The target audience is primarily Korean advertisers seeking to improve campaign effectiveness. The business model revolves around digital advertising services, leveraging third-party ad networks and tracking tools. There is no publicly available information on company registration, certifications, or partnerships, limiting the assessment of market positioning and growth potential. The lack of contact details and corporate disclosures suggests a need for improved transparency to support business credibility.

Security posture

The website employs HTTPS and standard tracking scripts but lacks critical security headers such as Content-Security-Policy and X-Frame-Options, which are essential for mitigating common web vulnerabilities. No evidence of exposed sensitive data or vulnerable libraries was found, but the absence of a security.txt file or incident response contacts indicates limited preparedness for security incidents. Privacy policies and cookie consent mechanisms are missing, which may lead to non-compliance with GDPR and other privacy regulations. The overall security maturity is moderate, with recommendations to enhance header configurations, implement formal policies, and conduct regular security assessments.

Recommendations

  1. Implement comprehensive privacy and cookie policies with clear user consent mechanisms.
  2. Add security headers including Content-Security-Policy, X-Frame-Options, and X-XSS-Protection.
  3. Publish a security.txt file and establish incident response contact channels.
  4. Verify and publish domain WHOIS information to improve legitimacy and trust.
  5. Conduct regular security audits and vulnerability scans to maintain a strong security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
온라인 디스플레이 광고 플랫폼, 정교한 타겟팅 기술로 고도화된 광고 캠페인 성과 도출.
Key services
online display advertising, targeting technology, advertising campaign performance optimization
Content quality
good
Branding
consistent

Technology

Stack
Next.js, React, Google Analytics, Google Tag Manager, Adteip tracking, Noto Sans KR font
Frameworks
Next.js, React
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • HTTPS usage assumed (due to Google Analytics and GTM scripts loaded over HTTPS)

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
Adteip
Tracking pixels
DoubleClick (DC-10528636)
Transparency
basic

Site quality

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

Key observations

  1. Website is in Korean language targeting Korean advertisers.
  2. No WHOIS data available, domain registration status unclear.
  3. No privacy, cookie, or terms of service policies found on the site.
  4. No contact information or business registration details visible.
  5. Uses modern web technologies and standard tracking tools.
  6. No security headers detected; security posture can be improved.
  7. No signs of adult or questionable content.
  8. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on a modern React/Next.js framework, utilizing Google Fonts and multiple Google tracking services. The performance is moderate with deferred loading of scripts and preconnect optimizations. Mobile optimization is good, and basic accessibility features are present. SEO is basic with proper meta tags and Open Graph data but lacks structured data like JSON-LD. Hosting provider and CMS are not explicitly identified. The site uses external ad and tracking services, which should be monitored for privacy compliance. Technical debt appears low, but improvements in security configurations and privacy compliance are needed to reduce operational risks.
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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