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Security report for signalr.net

Microsoft · Technology · United States

Low risk. 2 critical or high findings in Security headers.

Security score

86/100

Risk levelLow

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

The website is an official Microsoft subdomain dedicated to ASP.NET SignalR, a technology enabling real-time web functionality. It targets developers and software engineers by providing technical resources and SDKs for multiple programming languages. The site is part of the broader .NET ecosystem, positioning Microsoft as a leading technology provider with a strong developer community. The technical infrastructure leverages modern web technologies including ASP.NET Core, Bootstrap, and Azure monitoring services, ensuring a performant and responsive user experience. Security posture is strong with HTTPS enforced and standard Microsoft security practices, though explicit security headers and incident response policies are not visible on this page. Privacy compliance is partially addressed with a cookie consent mechanism but lacks visible privacy and terms of service documentation on this page. Overall, the site reflects a mature, professional, and trustworthy digital presence consistent with Microsoft's enterprise stature.

Scanned

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 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';…

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Keep watching signalr.net

This scan found 11 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
100
Security headers
45
Email security
93
DNS health
90
Network security
100
GDPR outside view
88
Average
86

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

Microsoft operates this site as part of its extensive developer platform offerings, focusing on real-time web communication technologies. The business model centers on providing robust development tools and frameworks to foster ecosystem growth and adoption. The target audience includes professional developers and enterprises building web applications. Microsoft’s market position as a technology leader is reinforced by the quality and breadth of its offerings. The site integrates with Microsoft’s broader cloud and software services, leveraging partnerships and internal resources. Growth indicators include continuous updates and integration with Azure services. The absence of direct contact information on this page suggests a focus on self-service and community-driven support.

Security posture

The site demonstrates a solid security foundation with HTTPS and integration of Azure monitoring scripts. However, the absence of explicit security headers like CSP, HSTS, and lack of published security or incident response policies on this page indicate areas for improvement. No vulnerabilities or exposed sensitive data were detected in the provided content. The cookie consent mechanism supports privacy compliance but GDPR-specific documentation is not evident. The WHOIS data is not publicly available, which is typical for Microsoft domains and does not raise immediate concerns. Overall, the security posture is strong but could benefit from enhanced transparency and additional security headers.

Recommendations

  1. Implement and publish explicit security headers such as Content Security Policy (CSP) and HTTP Strict Transport Security (HSTS).
  2. Provide clear links to privacy policy and terms of service documents on all pages to improve compliance and user trust.
  3. Publish a dedicated security policy and incident response contact information to enhance transparency and readiness.
  4. Enhance GDPR compliance disclosures and data retention policies to align with regulatory requirements.
  5. Regularly audit and update third-party scripts and tracking mechanisms to minimize privacy risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Microsoft
Description
SignalR in ASP.NET lets your server-side code push content to connected clients, in real-time, with client SDKs for JavaScript, .NET (C#, F#, and VB), and Java.
Key services
ASP.NET Core, SignalR, Web APIs, Blazor, MVC
Content quality
excellent
Branding
consistent

Technology

Stack
ASP.NET Core, JavaScript, Bootstrap, Prism.js, Azure Monitor
Frameworks
ASP.NET Core, Bootstrap
Platforms
Web
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Content Security Policy implied by modern Microsoft standards

Analytics and tracking

Services
Azure Monitor, Microsoft Clarity (implied)
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
Adobe Target (disabled)
Transparency
basic

Site quality

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

Key observations

  1. Website is a Microsoft official subdomain focused on ASP.NET SignalR technology
  2. Content is developer-centric with comprehensive navigation and resources
  3. No contact emails or phone numbers explicitly listed on this page
  4. No explicit privacy or terms of service links found on this page
  5. Uses modern web technologies and Microsoft Azure monitoring scripts
  6. Cookie consent mechanism is implemented
  7. No security.txt or vulnerability disclosure information found
  8. No visible security headers in the provided data but HTTPS is enforced
  9. No signs of adult or questionable content
  10. WHOIS data is not publicly available, typical for Microsoft domains
Technical notes

Notes

The website uses a modern tech stack including ASP.NET Core for backend, Bootstrap for styling, and Prism.js for code syntax highlighting. It is hosted on Microsoft Azure infrastructure, indicated by Azure monitoring scripts. The site is well-optimized for performance and mobile responsiveness, with proper meta tags for SEO and accessibility features. The navigation is clear and consistent, supporting a positive user experience. No CMS is explicitly detected, suggesting a custom or proprietary platform. The technical implementation reflects a mature and well-maintained web presence suitable for enterprise-level applications.
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. 85/100Low21 findingsView report
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