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Security report for buysellads.com

BuySellAds · Technology · N/a

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

76/100

Risk levelLow

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

BuySellAds is a technology-driven advertising platform that connects publishers and marketers to facilitate ad sales and campaigns. The platform offers a variety of advertising solutions including programmatic ads, native ads, and self-serve campaign tools. The website demonstrates a strong market position with trusted brand partnerships and client testimonials, indicating a reputable presence in the advertising technology sector. Technically, the site is built on HubSpot CMS with modern JavaScript frameworks like Alpine.js, providing a responsive and well-structured user experience. Security posture is generally good with HTTPS enforced and secure login portals, though the absence of security headers and explicit privacy policies suggests room for improvement. The lack of WHOIS data reduces domain trustworthiness slightly, but the overall business credibility remains high based on content and branding. Strategic recommendations include enhancing privacy compliance, publishing security policies, and improving security header implementation to strengthen trust and compliance.

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

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"

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  3. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching buysellads.com

This scan found 18 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.

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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
55
Email security
82
DNS health
85
Network security
100
GDPR outside view
68
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

BuySellAds operates in the technology and media sectors, targeting advertisers and publishers seeking contextual and programmatic advertising solutions. Their business model revolves around providing a marketplace and technology platform for ad placements across websites, newsletters, and podcasts. The company leverages partnerships with specialized ad networks like Carbon Ads and Coin.Network to cater to niche audiences such as developers and crypto enthusiasts. The presence of notable clients and detailed success stories indicates a mature business with established revenue streams and a focus on growth through targeted advertising. The platform's self-serve capabilities and programmatic offerings position it competitively in the digital advertising ecosystem.

Security posture

The website enforces HTTPS and uses secure login portals for advertisers and publishers, reflecting a baseline security maturity. However, the absence of visible security headers such as Content-Security-Policy, X-Frame-Options, and others indicates potential gaps in defense-in-depth strategies. No vulnerability disclosures or incident response contacts are published, which could hinder rapid response to security incidents. Privacy compliance is minimal, with no explicit privacy or cookie policies detected, raising concerns about GDPR and other regulatory adherence. Overall, the security posture is moderate but would benefit from enhanced policies, transparency, and technical controls.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with user consent mechanisms to improve GDPR compliance.
  2. Add standard security headers (Content-Security-Policy, X-Frame-Options, X-XSS-Protection) to enhance protection against common web attacks.
  3. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Provide clear incident response contact information to improve transparency and readiness.
  5. Enhance accessibility features to meet compliance standards and improve user experience for all users.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BuySellAds
Description
BuySellAds builds advertising solutions for publishers and marketers. Sell ads with powerful advertising technology, or buy ads that reach audiences at scale.
Key services
Ad sales platform for publishers, Ad buying platform for marketers, Programmatic advertising solution (Optimize), Self-serve ad campaign platform, Specialized ad networks (Carbon Ads, Coin.Network)
Content quality
excellent
Branding
consistent

Technology

Stack
HubSpot CMS, Alpine.js, JavaScript, SVG graphics, Web fonts (woff, woff2)
Frameworks
Alpine.js
Platforms
HubSpot
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure login portals for dashboard access

Analytics and tracking

Services
HubSpot Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Carbon Ads, Coin.Network
Tracking pixels
HubSpot Analytics
Marketing tools
HubSpot
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 interactive elements
  2. No WHOIS data available, which is unusual for a .com domain
  3. No explicit privacy or cookie policy found on main page
  4. Contact email support@buysellads.com found in login lightbox and contact links
  5. Uses HubSpot CMS and analytics tools
  6. Strong branding and client testimonials present
  7. No signs of adult or questionable content
  8. No visible security.txt or vulnerability disclosure information
Technical notes

Notes

The website is built on HubSpot CMS, utilizing Alpine.js for interactive components and SVG graphics for branding and UI elements. The use of web fonts and responsive design indicates attention to modern web standards. Performance appears moderate with multiple large images and scripts, suggesting potential optimization opportunities. SEO is supported by proper meta tags and Open Graph data. The technical infrastructure is solid but could be improved by optimizing asset loading and enhancing accessibility compliance. No hosting provider details were found, but the use of HubSpot suggests managed hosting. Overall, the technical implementation supports a professional and scalable platform.
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

Earlier scans of this domain

  1. 75/100Medium27 findingsView report
  2. 75/100 +20Medium27 findingsView report
  3. 55/100Medium25 findingsView report
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