Is calendly.com Safe? Security Analysis for Calendly
Check if calendly.com is a scam or legitimate. Free security scan and reviews.
AI Summary
Calendly is a leading SaaS provider specializing in online appointment scheduling software, serving over 20 million professionals and a significant portion of Fortune 500 companies. The platform offers a comprehensive suite of scheduling tools including calendar integrations, automated workflows, and admin management features, positioning itself as a market leader in productivity and scheduling solutions. The website demonstrates a mature digital infrastructure built on modern web technologies such as React and Next.js, hosted and delivered via Cloudflare DNS and CDN services, ensuring fast and responsive user experiences across devices. Security posture is solid with HTTPS enforcement and domain registration protections, though improvements such as enabling DNSSEC and publishing explicit security policies could enhance trust further. Privacy compliance indicators are limited in the provided content snapshot, with no explicit privacy or cookie policies detected, suggesting an area for improvement. Overall, Calendly presents a professional, trustworthy, and technically advanced online presence aligned with its enterprise-scale business model.
Detected Technologies
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Calendly operates a subscription-based SaaS business model with tiered pricing plans catering to individuals, small teams, growing businesses, and large enterprises. Its competitive advantage lies in deep integrations with popular productivity and communication platforms such as Zoom, Salesforce, Google Calendar, Slack, Microsoft Teams, and more. The company targets a broad audience from solopreneurs to Fortune 500 enterprises, emphasizing ease of use and scalability. The presence of extensive integrations and automated workflows indicates a strategic focus on ecosystem connectivity and operational efficiency. The website content and structure reflect a strong brand identity and market leadership, supported by trust signals including customer testimonials and enterprise adoption statistics. No parent or subsidiary companies were identified in the provided data.
Security Posture Analysis
Comprehensive Security Assessment
The website enforces HTTPS and employs domain status protections to prevent unauthorized domain modifications. However, DNSSEC is not enabled, which could expose DNS queries to spoofing attacks. No explicit security headers were detected in the provided content, and no dedicated security or incident response policies are published on the site. The use of modern web frameworks and absence of exposed sensitive data or vulnerable libraries indicate a good baseline security maturity. The lack of visible contact channels for security incidents or vulnerability disclosures suggests limited transparency in incident response readiness. Overall, the security posture is good but could be enhanced by adopting DNSSEC, publishing security policies, and implementing comprehensive security headers.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC to improve DNS security and prevent spoofing.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Calendly
Calendly is the modern scheduling platform that makes “finding time” a breeze. When connecting is easy, your teams can get more done.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- Domain status includes clientDeleteProhibited, clientRenewProhibited, clientTransferProhibited, clientUpdateProhibited
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and interactive features
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
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: energy, transport, banking, digital
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
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
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 70 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
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
Domain Registration Details
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