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Security report for circle.so

Circle · Technology · N/a

Low risk. 2 critical or high findings in Security headers and DNS health.

Security score

83/100

Risk levelLow

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

Circle is a technology company offering a comprehensive SaaS community platform that enables users to build branded communities, host events, and manage courses. The platform targets community builders, event organizers, and course creators, positioning itself as a complete solution in the community management space. Founded in 2019, Circle has established a professional online presence with a well-structured website and modern technology stack. The website leverages advanced frameworks such as Next.js and React, and integrates multiple marketing and analytics tools to optimize user engagement and business insights. Security posture is solid with HTTPS enabled and Cloudflare DNS usage, though improvements such as enabling DNSSEC and publishing security policies could enhance trust. Privacy compliance is limited based on the provided data, with no visible privacy or cookie policies, which is an area for improvement. Overall, Circle demonstrates a mature digital infrastructure and a strong market position in the technology sector.

Scanned

This is an earlier scan of circle.so. View the latest report

NIS2 and GDPR posture

GDPR outside view
88/ 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

2 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 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. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Unregistered MX Record

      MX record points to unregistered domain: 5b6vhttjgzjo6qhcfz3sogfdmyojuvxgulgf4tjfswlukdc4kstq.mx-verification.google.com

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching circle.so

This scan found 14 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

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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
100
Security headers
70
Email security
70
DNS health
70
Network security
100
GDPR outside view
88
Average
83

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

Circle operates in the technology sector with a focus on SaaS community platforms. Its business model revolves around providing a branded platform for communities, events, and courses, catering to a medium-sized enterprise audience. The company uses a variety of third-party services for marketing, analytics, and affiliate programs, indicating a robust partnership ecosystem. The domain registration and technical infrastructure align with the company's profile, supporting legitimacy and operational stability. However, the absence of explicit contact information and compliance documentation on the website suggests potential gaps in customer support and regulatory adherence.

Security posture

The website employs HTTPS and Cloudflare DNS, indicating a baseline of security best practices. However, DNSSEC is not enabled, and no security headers were detected in the provided data, which could expose the site to certain attack vectors. The extensive use of third-party analytics and marketing scripts increases the attack surface and requires vigilant monitoring. There is no evidence of published security policies, incident response plans, or vulnerability disclosure programs, which are important for transparency and trust. The security score reflects a good but improvable posture, with recommendations to enhance DNS security, implement security headers, and publish security-related documentation.

Recommendations

  1. Enable DNSSEC to strengthen domain name system security.
  2. Implement and verify HTTP security headers such as Content Security Policy, HSTS, and X-Frame-Options.
  3. Publish comprehensive privacy and cookie policies with clear GDPR compliance statements.
  4. Add a security policy page and incident response contact information to improve transparency.
  5. Establish a vulnerability disclosure program or security.txt file to encourage responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Circle
Description
Build a home for your community, events, and courses — all under your own brand.
Key services
community platform, event hosting, course management
Content quality
good
Branding
consistent

Technology

Stack
React (Next.js), Cloudflare DNS, Google Tag Manager, Microsoft Clarity, TikTok Pixel, Reddit Pixel, LinkedIn Insight Tag, HubSpot, ProfitWell, Visual Website Optimizer (VWO), PartnerStack
Frameworks
Next.js, React
Platforms
Web
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • Use of Cloudflare DNS
  • No DNSSEC enabled (potential improvement area)

Analytics and tracking

Services
Microsoft Clarity, Google Analytics (via GTM), HubSpot Analytics, ProfitWell
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Bing Ads, TikTok Ads, Reddit Ads, LinkedIn Ads, Google Ads
Tracking pixels
Microsoft Clarity, TikTok Pixel, Reddit Pixel, LinkedIn Insight Tag, HubSpot Analytics, ProfitWell
Marketing tools
HubSpot, ProfitWell, Visual Website Optimizer
Transparency
good

Site quality

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

Key observations

  1. Website is a professional SaaS platform for community management
  2. No privacy or cookie policy pages detected in the provided HTML
  3. Extensive use of third-party marketing and analytics tools
  4. No direct contact information or security policies found in the HTML
  5. Domain is active and well-maintained with no DNSSEC enabled
  6. No WAF or blocking mechanisms detected
Technical notes

Notes

The website is built on a modern technology stack including Next.js and React, ensuring good performance and mobile optimization. Hosting appears to be supported by Cloudflare DNS and CDN services, contributing to fast load times and reliability. The site integrates multiple analytics and marketing tools such as Google Tag Manager, Microsoft Clarity, TikTok Pixel, HubSpot, and ProfitWell, indicating a data-driven approach to user engagement and business growth. Accessibility and SEO are at a basic to good level, with room for enhancement. No CMS was detected, suggesting a custom or headless architecture. Overall, the technical infrastructure is robust and supports the business objectives effectively.
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. 78/100Low25 findingsView report
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