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Security report for adx.ws

Sevio · Technology · N/a

Medium risk. 6 critical or high findings in Email security, Security headers and 2 other checks.

Security score

68/100

Risk levelMedium

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

The website adx.ws serves as an informational landing page for an ad serving domain owned by Sevio, a technology company specializing in digital advertising services. The site is minimalistic, providing basic information about the domain ownership and directing users to the parent company's main website for further contact and support. The business model centers on ad serving, targeting advertisers and digital marketing professionals. The domain has been registered since 2014, indicating an established presence in the market. From a technical perspective, the site employs standard HTML5 and CSS3 technologies with Google Fonts integration. It lacks complex frameworks or CMS platforms, reflecting a lightweight and straightforward infrastructure. The site is mobile-optimized with good design quality and navigation clarity, although SEO and accessibility features are basic. No analytics or tracking scripts were detected, suggesting minimal user data collection on this domain. Security posture is moderate but could be improved. There is no evidence of security headers or explicit security policies published on the site. HTTPS usage and SSL configuration details are not provided in the data but should be verified. The absence of incident response information and vulnerability disclosure mechanisms indicates room for enhancement in security transparency and readiness. Overall, the website is safe, professional, and consistent with its stated purpose. It does not contain adult or questionable content and maintains a moderate level of trustworthiness. Strategic recommendations include implementing security headers, publishing security policies, and enhancing privacy compliance measures to strengthen the site's security and compliance posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

6 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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 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 adx.ws

This scan found 21 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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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
75
Security headers
30
Email security
60
DNS health
75
Network security
100
GDPR outside view
68
Average
68

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

Sevio operates in the technology sector with a focus on digital advertising and ad serving solutions. The adx.ws domain functions as a dedicated ad serving domain under the Sevio brand, supporting their advertising infrastructure. The business model likely involves serving ads for clients and partners, generating revenue through advertising services. The company targets advertisers and digital marketing professionals seeking ad delivery solutions. The presence of a helpdesk and contact page on the parent domain indicates a structured customer support system. The domain's longevity since 2014 suggests stable operations. No direct revenue streams or partnerships are explicitly mentioned on this domain, but the linkage to sevio.com implies integration within a broader business ecosystem.

Security posture

The current security maturity level of the adx.ws domain is basic. No security headers such as Content-Security-Policy or X-Frame-Options were detected, and there is no published security or incident response policy on the site. The lack of a vulnerability disclosure or security.txt file limits transparency for security researchers. No exposed sensitive data or vulnerable libraries were identified in the HTML content. The site does not collect user data directly, reducing immediate risk exposure. However, the absence of explicit security best practices and incident response readiness suggests potential gaps in security culture and compliance. Enhancing these areas would improve the overall security posture and business resilience.

Recommendations

  1. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish a clear security policy and incident response plan accessible from the website to improve transparency and preparedness.
  3. Add a vulnerability disclosure program or security.txt file to facilitate responsible reporting of security issues.
  4. Verify and enforce HTTPS with strong SSL/TLS configurations to ensure secure communications.
  5. Enhance privacy compliance by integrating cookie consent mechanisms and updating privacy policies to reflect GDPR and other regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sevio
Description
Adx.ws is an ad serving domain owned by Sevio.
Key services
Ad serving
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, Google Fonts
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
50/100

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a simple informational landing page for an ad serving domain owned by Sevio.
  2. No forms or direct contact emails on this domain; contact is redirected to main Sevio site.
  3. No security or incident response policies published on this domain.
  4. No analytics or tracking scripts detected in the HTML content.
  5. Website uses Google Fonts and basic CSS styling.
  6. No social media links or phone numbers found on this domain.
  7. Privacy, cookie, and terms policies are linked but hosted on the parent domain sevio.com.
  8. No signs of adult or questionable content.
  9. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website uses a simple and clean technical infrastructure based on HTML5 and CSS3 with Google Fonts for typography. There is no evidence of a CMS or advanced frameworks, which reduces complexity but may limit scalability. The site is mobile responsive and has good design and navigation clarity. Performance is moderate, likely due to minimal content and lightweight assets. No analytics or third-party tracking scripts were detected, indicating a privacy-conscious approach or minimal user engagement tracking. Technical debt appears low, but modernization opportunities include adding accessibility features and SEO enhancements. The lack of security headers and explicit HTTPS enforcement are technical risks that should be addressed to protect business operations.
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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