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Security report for stocktwits.com

Stocktwits · Finance · United States

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

75/100

Risk levelMedium

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

Stocktwits is a leading social media platform and real-time market data provider focused on investors and traders. Founded in 2008, it has grown to serve over 10 million users, offering live stock and cryptocurrency quotes, social community discussions, news, earnings tracking, and AI-powered insights. The platform integrates multiple advertising and analytics services to monetize and optimize user engagement. Technically, Stocktwits employs modern web technologies including Next.js, Cloudflare CDN, and various tracking and marketing tools, ensuring fast performance and mobile optimization. Security posture is strong with HTTPS enforcement and domain locking, though DNSSEC is not enabled and explicit privacy and security policies are not found in the provided content. Overall, Stocktwits presents a professional, trustworthy, and comprehensive service for its target audience of investors and traders.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

5 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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. 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 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
    • 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 stocktwits.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.

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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Full report

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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
57
Security headers
55
Email security
75
DNS health
80
Network security
100
GDPR outside view
85
Average
75

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

Stocktwits occupies a strong market position as a social platform for financial market participants, leveraging community-driven content and real-time data. Its business model combines advertising, subscription, and possibly affiliate revenue streams. The platform targets retail investors, traders, and crypto enthusiasts globally, with a focus on the US market. Partnerships with major ad networks and analytics providers enhance its monetization and data insights capabilities. The company demonstrates growth potential through AI-powered features and live event streaming. However, the absence of publicly visible privacy and security policies may pose compliance risks. The company maintains consistent branding and a strong digital presence across social media channels.

Security posture

Stocktwits demonstrates a mature security posture with HTTPS enforced site-wide, domain registration protections, and use of reputable third-party security and analytics services. The presence of cookie consent mechanisms indicates awareness of privacy regulations. However, the lack of DNSSEC and absence of published incident response or vulnerability disclosure policies represent gaps. No obvious vulnerabilities or exposed sensitive data were detected in the content. The site uses multiple tracking and advertising scripts, which may increase the attack surface and privacy risks if not properly managed. Overall, the security maturity is good but could be improved with formalized policies and DNS security enhancements.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service accessible from the homepage.
  2. Implement and publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  3. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  4. Provide clear incident response contact information, including security and abuse email addresses.
  5. Regularly review and audit third-party scripts and tracking technologies to minimize privacy and security risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stocktwits
Description
Stocktwits provides real-time stock, crypto & international market data to keep you up-to-date. Find top news headlines, discover your next trade idea, share & gain insights from traders and investors from around the world, build a watchlist, buy US stocks, & create and manage your portfolio.
Key services
Real-time stock and crypto market data, Social community discussions, News and live events, Stock rankings and earnings tracking, Portfolio and watchlist management, AI-powered insights
Content quality
excellent
Branding
consistent

Technology

Stack
React (Next.js), Cloudflare DNS and CDN, Google Analytics, Google Tag Manager, Mixpanel, AppsFlyer, Amazon Ads, PubMatic, OneTrust Cookie Consent, mParticle
Frameworks
Next.js
Platforms
Web, iOS (App Store), Android (Google Play)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Domain locked with multiple client prohibitions
  • Use of reputable third-party security and analytics scripts
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Analytics, Mixpanel, Microsoft Clarity, mParticle
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Amazon Ads, Google DoubleClick, PubMatic
Tracking pixels
Microsoft Clarity, Mixpanel, Sift Science, AppsFlyer, mParticle
Marketing tools
OneTrust Cookie Consent
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 no blocking or WAF challenge.
  2. Strong use of modern web technologies and analytics.
  3. Comprehensive marketing and advertising integrations.
  4. Lack of explicit privacy policy and terms of service pages detected in the provided content.
  5. Good security posture with HTTPS and domain locking but missing DNSSEC.
  6. No explicit incident response or vulnerability disclosure information found.
  7. Social media presence is strong with verified links.
  8. Content is professionally presented and highly relevant to target audience.
Technical notes

Notes

The website is built on a modern React-based framework (Next.js) and leverages Cloudflare for DNS and CDN services, ensuring fast and reliable content delivery. The tech stack includes advanced analytics and marketing tools such as Google Analytics, Mixpanel, Microsoft Clarity, AppsFlyer, and mParticle, indicating a high level of digital maturity. The site is mobile optimized with responsive design and good accessibility features. Performance is fast with preloading and preconnecting of critical resources. However, the site could benefit from enabling DNSSEC and consolidating privacy and security documentation to reduce technical debt and compliance 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. 77/100Low26 findingsView report
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