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Security report for socket.io

DNStination Inc. · Technology · United States

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

60/100

Risk levelMedium

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

Socket.IO is a mature and widely adopted open-source technology project providing real-time bidirectional communication capabilities primarily for web developers. The platform leverages WebSocket technology with fallback mechanisms to ensure reliable and scalable communication across multiple platforms. The website is well-structured, built on modern frameworks such as Docusaurus, and offers comprehensive documentation and community engagement channels including GitHub, Stack Overflow, and Slack. The business model is community-driven with sponsorship support, targeting developers and technology professionals globally. Technically, the site demonstrates good performance, mobile optimization, and SEO practices, though it lacks explicit privacy and security policy disclosures. Security posture is solid with HTTPS enforcement and domain management best practices, but could be improved by enabling DNSSEC and publishing security policies. Overall, the site is trustworthy and professional, with no signs of malicious or adult content.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

8 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 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching socket.io

This scan found 26 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
62
Security headers
30
Email security
60
DNS health
75
Network security
100
GDPR outside view
35
Average
60

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

Socket.IO holds a strong position in the real-time communication technology market, serving a developer-centric audience with open-source software and extensive documentation. Its competitive advantage lies in its robust WebSocket implementation and fallback strategies, enabling low-latency and scalable communication. Revenue streams appear to be primarily through community sponsorships and possibly enterprise support. The ecosystem includes partnerships with platforms like GitHub and Stack Overflow, enhancing community engagement and support. Growth indicators include active blog updates and a broad sponsor base. Strategic observations suggest opportunities to enhance compliance and security transparency to further build trust.

Security posture

The website exhibits a moderate to good security maturity level with HTTPS enabled and domain registration protections in place. However, the absence of published security policies, incident response contacts, and security.txt files indicates gaps in transparency and readiness. No security headers were detected in the provided data, which could expose the site to certain web-based attacks. The lack of privacy and cookie policies also suggests incomplete compliance with GDPR and related regulations. No vulnerabilities or exposed sensitive data were identified. Enhancing security headers, publishing policies, and enabling DNSSEC would strengthen the security posture significantly.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish comprehensive privacy and cookie policies including GDPR compliance details.
  3. Add a dedicated security policy and incident response page with clear contact channels.
  4. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Provide clear contact information including company emails and phone numbers to enhance business credibility and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DNStination Inc.
Description
Socket.IO provides bidirectional and low-latency communication for every platform, enabling real-time web applications with WebSocket and fallback technologies.
Key services
Real-time bidirectional communication, WebSocket and HTTP long-polling fallback, Scalable event-based messaging, Developer tools and documentation
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, WebSocket, HTTP long-polling, Algolia DocSearch
Frameworks
Docusaurus v2.4.3
Platforms
Web
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced (implied by canonical URL https://socket.io/)
  • Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited

Analytics and tracking

Services
Algolia DocSearch
Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content and documentation.
  2. No explicit privacy, cookie, or terms of service policies found on homepage or footer.
  3. No contact emails or phone numbers explicitly provided on the homepage.
  4. Strong developer community presence via GitHub, Stack Overflow, Slack.
  5. Sponsors list is extensive but mostly unrelated to core business.
  6. No security.txt or vulnerability disclosure page detected.
  7. No explicit security or incident response policies published.
  8. Website uses HTTPS and modern web technologies.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using Docusaurus, a modern static site generator optimized for documentation sites, ensuring fast load times and good SEO. The tech stack includes JavaScript and WebSocket technologies, with Algolia DocSearch integration for search functionality. Hosting appears stable with reputable registrar and name servers. The site is mobile optimized and accessible with clear navigation and structured content. No technical debt or legacy technology indicators were found. Opportunities exist to improve security headers and privacy compliance to reduce technical risks.
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. 60/100Medium35 findingsView report
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