Is llewellynandco.co.uk Safe? Security Analysis for Llewellyn & Co
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Llewellyn & Co is a small, family-owned independent estate and lettings agency specializing in the West London housing market. The company offers a range of services including property lettings, sales, valuations, and landlord support, targeting landlords and tenants in areas such as Hammersmith, Shepherds Bush, and Chiswick. The website reflects a local market focus with a professional but basic online presence, emphasizing personal service and local expertise. Technically, the website is built on ASP.NET WebForms and uses older JavaScript libraries such as jQuery 1.4.2 and Colorbox for UI elements. While functional, the technology stack is outdated, which may pose security and performance challenges. The site includes basic SEO and accessibility features but lacks modern optimizations and mobile responsiveness is limited. From a security perspective, the site shows some positive indicators such as a cookie consent banner and use of HTTPS (implied but not confirmed). However, it lacks important security headers and uses outdated libraries with known vulnerabilities. The WHOIS data is unavailable or invalid, which raises concerns about domain registration legitimacy. No incident response or security policy information is provided. Overall, the website is moderately trustworthy and functional for its business purpose but requires technical and security improvements. The lack of valid WHOIS data and outdated technology stack are key risk factors. Strategic recommendations include updating the technology stack, enhancing security headers, verifying domain registration, and improving privacy compliance to strengthen trust and security posture.
Detected Technologies
11 urgent findings need attention
11 high
- + 3 more findings in the full report below
Keep llewellynandco.co.uk under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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OffSeq Observations
No critical findings yet
62/100
DNS Health
5 findings
60/100
SSL/TLS Security
6 findings
32/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Llewellyn & Co operates as a niche real estate agency focused on residential lettings and sales in West London. Their business model centers on personalized service to landlords and tenants, leveraging local market knowledge. The company appears to maintain a small operational size with no evidence of subsidiaries or parent companies. Their partnership ecosystem includes recognized industry bodies such as The Property Ombudsman and Trading Standards, enhancing credibility. Revenue streams likely derive from lettings commissions, sales fees, and valuation services. The website content and featured properties indicate active engagement in the local market. Growth indicators are limited but the presence of certifications suggests a commitment to industry standards. The absence of social media and modern digital marketing tools may limit broader market reach.
Security Posture Analysis
Comprehensive Security Assessment
The current security posture of the website is basic with several areas of concern. The use of an outdated jQuery version (1.4.2) exposes the site to known vulnerabilities that could be exploited. The absence of key security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security reduces protection against common web attacks. While HTTPS usage is implied, it is not explicitly confirmed in the HTML content. No dedicated security policy, incident response contacts, or vulnerability disclosure mechanisms are present, indicating limited security governance. The cookie consent banner is a positive privacy compliance indicator but GDPR compliance is not fully evident. Overall, the site requires significant security enhancements to mitigate risks and align with best practices.
Strategic Recommendations
Priority Actions for Security Improvement
Upgrade all JavaScript libraries, especially jQuery, to the latest secure versions to eliminate known vulnerabilities.
✨Observations
Comprehensive website and business-context analysis.
AI-Enhanced Website Analysis
Business Insights
Llewellyn & Co
Llewellyn & Co is an independently owned and operated lettings agency with a vast wealth of knowledge in the West London housing market, whom supply a friendly and professional approach in property sourcing.
good
moderate
Technical Stack
moderate
basic
basic
basic
Security Assessment
- Cookie consent banner implemented
- Use of HTTPS implied but not confirmed in HTML
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a small independent real estate lettings agency focused on West London.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
Forces HTTPS connections
Missing X-Frame-Options header
Prevents clickjacking attacks
Missing X-Content-Type-Options header
Prevents MIME type sniffing
Missing Content-Security-Policy header
Controls resources the browser is allowed to load
Missing X-XSS-Protection header
Legacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
Controls referrer information sent with requests
Missing Permissions-Policy header
Controls browser features and APIs
Sensitive data may be cached
Cache-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 Consent Banner found
GDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
Large organizations may need to designate a DPO under GDPR
Privacy policy may not be GDPR compliant
Privacy policy lacks explicit GDPR compliance elements
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
NIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
NIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
NIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
NIS2 requires documented incident response and business continuity plans
No business continuity planning found
NIS2 emphasizes operational resilience and business continuity
No security contact information
NIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
Clear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
Consider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
Detected sectors: transport, digital
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No BIMI Record
BIMI displays brand logos in email clients
No MTA-STS Policy
MTA-STS enforces TLS for email delivery
No TLS-RPT Record
TLS-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
Server supports weak protocols: TLSv1.1
Certificate Transparency Not Implemented
Certificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
SSL certificate expires in 86 days
Weak SSL Key Length
SSL certificate uses 256-bit key, which is considered weak
HSTS Not Enabled
HTTP Strict Transport Security (HSTS) is not configured
Mixed Content Detected
17 resources loaded over insecure HTTP
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
DNSSEC is not configured for this domain
CAA Records Not Configured
Certificate Authority Authorization (CAA) records not found
Domain Transfer Lock Not Enabled
Domain can be transferred without authorization
Domain Delete Lock Not Enabled
Domain can be deleted without additional verification
No DMARC Record
DMARC policy not configured
Domain Registration Details
- •No domain protection locks enabled
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
No unnecessary services detected on common risky ports
How does llewellynandco.co.uk compare?
See how llewellynandco.co.uk stacks up against similar websites in the same industry.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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