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Security report for onlinecity.dk

Onlinecity.io ApS · Technology · Denmark

High risk. 9 critical or high findings in Network security, Security headers and 2 other checks.

Security score

46/100

Risk levelHigh

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

Onlinecity.io ApS is a Danish technology company specializing in advanced yet user-friendly platforms focused on IoT connectivity and SMS communication services. Their key offerings include NexCon.io for professional SIM cards in M2M and IoT devices, GatewayAPI as a cost-effective SMS gateway, and RelationCity for automated customer communication. The company has a medium-sized presence with a global client base and a strong emphasis on platform scalability and customer experience. Technically, the website employs modern frameworks like Vue.js and is hosted with Cloudflare DNS, ensuring good performance and mobile optimization. Security posture is solid with HTTPS and domain transfer protections, but lacks DNSSEC and some security headers. Privacy compliance is weak due to missing privacy and cookie policies. Overall, the domain registration is consistent and trustworthy, supporting the legitimacy of the business.

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

9 findings rated critical or high. Fix these first.

  1. 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

  2. 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';…

  3. 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

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

Keep watching onlinecity.dk

This scan found 26 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.

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Full report

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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
77
Security headers
15
Email security
75
DNS health
75
Network security
0
GDPR outside view
35
Average
46

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

The company positions itself as a provider of scalable communication platforms targeting businesses needing IoT device connectivity and SMS-based customer engagement. Their business model revolves around platform services (PaaS/CPaaS) with multiple subsidiaries managing specialized services. The presence of reputable clients and a transparent leadership team indicates a mature operation. Growth is supported by a flexible, agile work culture and global reach. The company leverages partnerships and subsidiaries to diversify offerings and maintain competitive advantages in the telecommunications and IoT sectors.

Security posture

The website demonstrates a moderate security maturity level with enforced HTTPS and domain transfer lock. However, the absence of DNSSEC, Content-Security-Policy, and other security headers exposes potential risks. No vulnerability disclosure or incident response policies are publicly available, which could hinder rapid response to security incidents. Privacy compliance gaps, including missing privacy and cookie policies, present regulatory risks especially under GDPR. The company should enhance its security framework and transparency to improve trust and compliance.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security.
  2. Publish comprehensive privacy and cookie policies with GDPR compliance details.
  3. Implement Content-Security-Policy and other security headers to mitigate web vulnerabilities.
  4. Establish and publicize a vulnerability disclosure and incident response policy.
  5. Enhance contact information availability including email and physical address for better transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Onlinecity.io ApS
Description
ONLINECITY.IO boosts the standard for advanced but easy to use platforms. They focus on scalable platforms, SMS technology, and provide services such as professional SIM cards for M2M and IoT devices (NexCon.io), SMS gateway services (GatewayAPI), and customer communication automation (RelationCity).
Key services
NexCon.io - SIM cards for M2M and IoT devices, GatewayAPI - SMS gateway service, RelationCity - Automated customer communication platform
Content quality
good
Branding
consistent

Technology

Stack
Vue.js, Cloudflare DNS, Custom CSS and JS, SVG graphics
Frameworks
Vue.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Domain status clientTransferProhibited
  • Use of Cloudflare DNS

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is professionally designed with a clear focus on platform services for IoT and SMS communication.
  2. No privacy or cookie policies found, which is a compliance gap.
  3. Contact information is limited to a phone number; no email or physical address found.
  4. No forms detected that collect user data.
  5. No social media links found in the provided content.
  6. Use of Cloudflare DNS but no DNSSEC enabled.
  7. WHOIS data is transparent and consistent with the business.
  8. No security.txt or vulnerability disclosure policy found.
  9. No explicit security or incident response policies published.
Technical notes

Notes

The website uses a modern JavaScript framework (Vue.js) with SVG graphics and custom CSS, hosted behind Cloudflare DNS. Performance is moderate with good mobile optimization. However, accessibility features are basic and SEO is good but could be improved with structured data. No CMS detected, indicating a custom-built platform. The technical infrastructure supports scalability but lacks some modern security enhancements. There is opportunity to improve technical debt by adding security headers and privacy compliance 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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