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Security report for sparkplus.co

SPARKPLUS · Real Estate · South Korea

High risk. 9 critical or high findings in SSL/TLS, Network security and 3 other checks.

Security score

34/100

Risk levelHigh

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

SPARKPLUS is a South Korean company specializing in providing tailored office spaces and coworking environments primarily in Seoul and the greater metropolitan area. Their business model focuses on flexible office rentals, subscription-based personal workspaces, event space rentals, and promotional offerings such as pre-booking and free trial periods. The company positions itself as a modern, customer-centric real estate service provider with a strong emphasis on convenience and practical workspace solutions. Technically, the website is built on a modern JavaScript stack including jQuery, Swiper, and Axios, hosted on Cafe24, a popular Korean hosting platform. The site is mobile-optimized and features rich multimedia content, including embedded Vimeo videos and interactive UI components. Security-wise, the site enforces HTTPS and uses some security best practices but lacks certain headers like Content-Security-Policy and cookie consent mechanisms, which are recommended for enhanced protection and compliance. The WHOIS data is transparent and consistent with the business information presented on the site, indicating a legitimate and trustworthy operation. Overall, the website demonstrates good digital maturity and business credibility, though there is room for improvement in privacy compliance and security hardening.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 100 · Medium
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

9 findings rated critical or high. Fix these first.

  1. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  2. 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: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • 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

  3. 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';…

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

Keep watching sparkplus.co

This scan found 23 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
0
Security headers
15
Email security
52
DNS health
85
Network security
0
GDPR outside view
53
Average
34

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

Technical appendix

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

Business context

Business profile

SPARKPLUS operates in the real estate sector with a focus on office space rental and coworking solutions. Their competitive advantage lies in offering flexible, location-diverse office options with tailored services and promotional incentives. The business targets SMEs, startups, and individual professionals seeking convenient and efficient workspace solutions in prime urban locations. Revenue streams likely include office rental fees, subscription services for lounge and desk spaces, event space rentals, and marketing promotions. The company maintains a professional online presence with clear contact channels and links to related corporate domains, indicating a well-structured partnership ecosystem. Growth indicators include recent domain registration and active promotional campaigns. Strategic observations suggest a focus on customer experience and digital engagement to differentiate in a competitive market.

Security posture

The website exhibits a moderate to good security posture. HTTPS is enforced, and domain status includes clientTransferProhibited, reducing risk of unauthorized domain transfers. However, some recommended security headers such as Content-Security-Policy and X-Content-Type-Options are missing, which could expose the site to certain client-side attacks like XSS or MIME sniffing. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The contact forms implement input validation and require explicit consent for personal data collection, aligning with GDPR principles. The absence of a security.txt file or explicit incident response contact information suggests room for improvement in vulnerability disclosure and incident management readiness. Overall, the security posture is adequate for the business type but could be enhanced with additional headers and formalized security policies.

Recommendations

  1. Implement Content-Security-Policy (CSP) header to mitigate cross-site scripting risks.
  2. Add X-Content-Type-Options header to prevent MIME sniffing attacks.
  3. Introduce a cookie consent banner/mechanism to improve GDPR and privacy compliance.
  4. Publish a security.txt file to facilitate vulnerability disclosure and improve incident response transparency.
  5. Enhance accessibility features to meet higher compliance standards and improve user experience for all users.

Contact details published on the site

Addresses
Legal name
SPARKPLUS
Registration number
877-87-00599
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SPARKPLUS
Description
스파크플러스는 맞춤형 오피스 공간을 제공하는 기업으로, 빠른 입지 이동성과 실용적 공간, 맞춤형 옵션을 통해 새로운 오피스 경험을 제공합니다.
Key services
오피스 임대, 라운지 구독형 업무 공간, 공간 대여, 1인 비즈니스 데스크, 프로모션 및 사전예약
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.6.0, jQuery UI, Swiper.js, AOS (Animate On Scroll), Axios, Vimeo Player
Platforms
Cafe24 (hosting and DNS)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • No exposed sensitive data in HTML
  • Secure form inputs with validation

Analytics and tracking

Services
Google Analytics (via GTM), Naver Analytics, Facebook Pixel, Beusable RUM
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Toast, Bizspring
Tracking pixels
Facebook Pixel, Naver Analytics, Daum KP, Beusable RUM
Marketing tools
Facebook Pixel, Naver Analytics
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected
  2. Comprehensive contact information including phone, email, physical address, and inquiry form
  3. Privacy policy and terms of service are clearly linked and detailed
  4. No explicit cookie consent mechanism found, which may be a compliance gap
  5. Modern JavaScript libraries and tracking tools are used
  6. Security headers partially implemented; room for improvement
  7. WHOIS data fully consistent with website business and location
  8. Business operates in real estate sector focusing on office space rental and related services
Technical notes

Notes

The website uses a modern and popular JavaScript stack including jQuery 3.6.0, jQuery UI, Swiper for sliders, AOS for animations, and Axios for HTTP requests. It is hosted on Cafe24, a well-known Korean hosting provider, which also manages DNS. The site is mobile-optimized with responsive design and includes multimedia content such as embedded Vimeo videos. SEO is supported by proper meta tags and Open Graph tags. Performance is moderate, with asynchronous loading of scripts and external resources. Accessibility is basic but could be improved. No CMS other than Cafe24 platform is explicitly detected. The technical implementation is solid but could benefit from enhanced security headers and privacy mechanisms.
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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