Is stumbleupon.com Safe? Security Analysis for StumbleUpon
Check if stumbleupon.com is a scam or legitimate. Free security scan and reviews.

AI Summary
StumbleUpon is a long-established web content discovery platform founded in 2001, offering users personalized web content exploration through a simple 'Stumble!' feature. The website is built using modern web technologies including React and Next.js, hosted on AWS infrastructure, and integrates Google services such as reCAPTCHA Enterprise and Google Tag Manager for security and analytics. The site appears to be transitioning or partnering with Mix.com, as indicated by modal content promoting Mix and related authentication flows. Security posture is generally good with HTTPS enforced and domain protections in place, but lacks published privacy, cookie, and security policies, which impacts compliance and user trust. No contact information or vulnerability disclosure mechanisms are present, limiting transparency. Overall, the site is functional and professional but could improve in privacy compliance and security transparency.
Detected Technologies
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
StumbleUpon operates in the technology sector as a niche content discovery and curation platform targeting general web users interested in personalized content. Its business model centers on user engagement through content recommendation and curation. The domain age and registration details support a legitimate and established presence. The partnership or transition to Mix.com suggests strategic repositioning or brand evolution. The absence of direct contact information and formal policies may limit user trust and regulatory compliance. The platform likely generates revenue through user engagement and possibly advertising or partnerships, though no explicit monetization details are present.
Security Posture Analysis
Comprehensive Security Assessment
The website enforces HTTPS and uses Google reCAPTCHA Enterprise to mitigate automated abuse, indicating a baseline security maturity. Domain registration includes multiple prohibitive statuses to prevent unauthorized transfers or deletions, reflecting good domain management. However, the absence of security headers such as Content-Security-Policy and lack of published security policies or incident response contacts represent gaps in security transparency and defense-in-depth. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The site would benefit from enhanced security headers, formalized security policies, and vulnerability disclosure mechanisms to improve overall security posture and compliance.
Strategic Recommendations
Priority Actions for Security Improvement
Publish comprehensive privacy and cookie policies with GDPR compliance and consent mechanisms.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
StumbleUpon
StumbleUpon is a web discovery platform that allows users to find and explore web content personalized to their interests, one click at a time.
good
consistent
Technical Stack
moderate
good
basic
basic
Security Assessment
- HTTPS enforced
- Use of Google reCAPTCHA Enterprise for bot protection
- Domain status includes multiple prohibitions to prevent unauthorized changes
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is accessible with no blocking or WAF challenges.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Third-party services without privacy policy
HIGHDetected services: Google Analytics
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
HIGHDetected sectors: transport, digital
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
Weak DKIM Key
HIGHDKIM selector 'google' uses 480-bit key
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
No DMARC Record
MEDIUMDMARC policy not configured
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings