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Security report for adbro.me

Gister Private Limited · Media · Singapore

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

76/100

Risk levelLow

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

ADBRO Marketing Solutions, operated by Gister Private Limited, is a Singapore-based digital advertising technology company specializing in high impact marketing channels with guaranteed campaign outcomes. The company offers full-service delivery including creative adaptation, precise targeting, and programmatic media buying through major DSPs. Their market position is strengthened by partnerships with major global brands and leading advertising agencies, supported by certifications such as IAB SEA+India membership and TCF vendor approval. Technically, the website is built on Webflow CMS with modern web technologies, optimized for performance and mobile devices, and integrates Google Analytics and Tag Manager for analytics. Security posture is solid with HTTPS and cookie consent mechanisms, though lacks some advanced security headers and published security policies. The WHOIS data is unavailable, which raises some concerns about domain registration transparency, but the overall business credibility and trust signals are strong. The site is safe for general audiences with no adult content. Overall, the website demonstrates a mature digital presence with room for improvement in security transparency and domain legitimacy verification.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

3 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. 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.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching adbro.me

This scan found 20 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
72
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
83
Average
76

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

ADBRO operates in the media sector, targeting advertisers and marketers seeking effective digital advertising solutions in Southeast Asia, particularly Singapore. Their business model focuses on delivering guaranteed advertising outcomes via programmatic and direct channels, leveraging first-party data and contextual targeting technologies. The company showcases a robust partnership ecosystem with major brands and agencies, enhancing market credibility. Revenue streams likely include media buying fees, creative services, and performance-based pricing models. Growth indicators include a diverse client portfolio and active presence in multiple regional markets. Strategic observations highlight the importance of maintaining domain registration transparency and expanding contact channels to reinforce trust.

Security posture

The website employs HTTPS with a valid SSL configuration and implements cookie consent mechanisms, indicating compliance with privacy regulations. However, the absence of key security headers such as Content-Security-Policy and Strict-Transport-Security reduces the overall security posture. No incident response or security policy information is published, limiting transparency in handling security events. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of third-party scripts appears controlled, but continuous monitoring is recommended. Compliance with GDPR is indicated through privacy policies and consent banners, but explicit data protection officer contact details are missing. Overall, the security maturity is moderate with opportunities for enhancement in policy transparency and technical controls.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection against common web attacks.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and trust.
  3. Verify and update WHOIS domain registration details to ensure domain legitimacy and reduce suspicion.
  4. Introduce a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  5. Expand contact information to include phone numbers and physical addresses to improve business credibility and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Gister Private Limited
Description
High Impact Marketing Channel offering guaranteed outcomes with full-service delivery at top viewability ad spots, free creative adaptation, and precise targeting.
Key services
High impact ad placements, Creative adaptation, Precision targeting, Programmatic and direct media buying, Campaign performance monitoring and reporting
Content quality
excellent
Branding
consistent

Technology

Stack
Google WebFont Loader, jQuery 3.5.1, Webflow CMS, Google Tag Manager, Google Analytics (gtag.js), CSS3, HTML5, JavaScript
Frameworks
Webflow
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

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

Advertising

Ad networks
Google Display & Video 360, The Trade Desk
Tracking pixels
Google Campaign Manager, DoubleVerify, IAS, AppsFlyer, Oracle MOAT
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. Strong branding with multiple high-profile client logos and agency partnerships.
  3. Comprehensive privacy and cookie policies with consent mechanism implemented.
  4. No phone numbers or physical addresses explicitly provided on the site.
  5. Contact primarily via email hello@adbro.me.
  6. No visible security policy or incident response contacts published.
  7. WHOIS data unavailable, raising questions about domain registration transparency.
  8. Use of modern web technologies and good mobile optimization.
  9. No adult or questionable content detected.
  10. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on the Webflow platform, utilizing modern front-end technologies such as HTML5, CSS3, JavaScript, and Google WebFont Loader. It integrates Google Tag Manager and Google Analytics for tracking and analytics purposes. The site is hosted on Webflow's CDN, ensuring fast content delivery and good performance. Mobile optimization is excellent with responsive design and accessibility features in place. SEO is supported by proper meta tags and Open Graph data. No CMS other than Webflow is detected. The technical infrastructure is modern and well-maintained, with no visible technical debt or deprecated libraries. Opportunities exist to enhance security headers and improve domain registration transparency.
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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