Is sister-sites.co.uk Safe? Security Analysis for Sister Sites
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
Sister-Sites.co.uk operates as a UK-focused affiliate and review platform specializing in online gambling sister sites, including casinos, bingo, and betting websites. The site positions itself as a trusted independent authority providing detailed operator information, license status, player feedback, and exclusive bonuses. It targets UK gambling players seeking reliable information about related gambling sites under the same operators. Technically, the website is built on WordPress with modern frontend technologies such as Tailwind CSS and integrates Google Analytics and Tag Manager for user tracking and performance insights. The site is mobile-optimized and accessible with good SEO practices. Security-wise, the site enforces HTTPS and implements standard security headers, but lacks explicit published security policies or incident response details. The WHOIS data for the domain is unavailable due to domain naming rules violation, which raises questions about domain registration legitimacy, though the website content and trust signals indicate a legitimate business. Overall, the site demonstrates a mature digital presence with room for improvement in transparency and security disclosures.
Detected Technologies
11 urgent findings need attention
1 critical · 10 high
- + 3 more findings in the full report below
Keep sister-sites.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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Security Headers
8 findings
15/100
GDPR Compliance
2 findings
73/100
NIS2 Compliance
8 findings
17/100
Email Security
6 findings
40/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The website holds a strong market position as a leading UK independent review platform for sister gambling sites, leveraging partnerships with major operators like Broadway Gaming and Skill On Net. Its business model is affiliate-driven, generating revenue through referrals and exclusive bonuses. The target audience is adult UK gamblers seeking trustworthy information on gambling operators and related sites. The platform's content strategy includes expert reviews, player feedback, and comprehensive listings, which enhance user engagement and trust. The presence of DMCA protection and UK Gambling Commission regulation badges further supports credibility. However, the lack of direct company contact details and incomplete WHOIS data may impact perceived transparency. The site’s partnership ecosystem is well-defined with key gambling operators, supporting its affiliate marketing approach.
Security Posture Analysis
Comprehensive Security Assessment
The website maintains a solid security posture with HTTPS enforced and multiple security headers implemented, reducing risks of common web attacks. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a publicly available security policy, incident response plan, or vulnerability disclosure program limits transparency and preparedness perception. No direct security contact channels were found, which could hinder timely incident reporting. The use of third-party scripts like Google Analytics and hCaptcha introduces typical tracking and bot mitigation mechanisms but requires ongoing monitoring for vulnerabilities. Overall, the security maturity is good but could be enhanced by publishing formal security documentation and establishing clear incident response contacts.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a dedicated security policy and incident response information on the website to improve transparency and user trust.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Sister Sites
Sister-Sites.co.uk is the UK's leading independent authority for trusted reviews of sister sites. We provide accurate information for all online casinos, bingo, and betting sites of regulated operators in the United Kingdom.
good
consistent
Technical Stack
moderate
good
good
good
Security Assessment
- HTTPS enforced
- Use of security headers
- No exposed sensitive data in HTML
- Secure forms with CSRF protection implied
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and no blocking detected
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🛡️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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
Privacy policy may not be GDPR compliant
MEDIUMPrivacy 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
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
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No SPF record found
HIGHSPF helps prevent email spoofing
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
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
No email authentication configured
CRITICALDomain is vulnerable to email spoofing
🏆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 62 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Mixed Content Detected
MEDIUM1 resources loaded over insecure HTTP
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
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
Domain Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
- •No domain protection locks enabled
DNS Records
DNSSEC Status
DNS Performance
⚡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
How does sister-sites.co.uk compare?
See how sister-sites.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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PDF Report & Export
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.
SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
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