Is cosl.com.sg Safe? Security Analysis for China Oilfield Services Limited
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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
China Oilfield Services Limited (COSL) is a leading integrated offshore oilfield services provider primarily serving the Asian market with a global footprint. The company offers a comprehensive range of services including geophysical surveys, drilling, well services, and marine support, supported by a large fleet of vessels and advanced technical equipment. The website reflects COSL's enterprise scale and market leadership with detailed service descriptions and investor information. Technically, the website uses standard web technologies such as jQuery and JavaScript, with moderate performance and basic mobile optimization. Security posture is moderate but could be improved by implementing HTTPS enforcement and security headers. Privacy compliance is weak due to the absence of privacy and cookie policies. Overall, the website is professional and trustworthy but would benefit from enhanced security and privacy features.
Detected Technologies
11 urgent findings need attention
3 critical · 8 high
- + 3 more findings in the full report below
Keep cosl.com.sg 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
1 finding
0/100
GDPR Compliance
4 findings
25/100
NIS2 Compliance
9 findings
0/100
Email Security
2 findings
83/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
COSL holds a strong market position as a major player in the offshore oilfield services sector, backed by its parent company CNOOC. Its business model focuses on providing integrated and turnkey solutions across the oil and gas exploration and production lifecycle. The company targets industry clients worldwide, including investors and partners. The website content and structure support investor relations and customer engagement, highlighting corporate governance, social responsibility, and QHSE commitments. Subsidiaries and global offices indicate a broad operational footprint. The company leverages partnerships for corporate mail and analytics services. Growth indicators include recent news releases and investor updates.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a basic security posture with no visible HTTPS enforcement or security headers in the provided data. Forms include basic input validation but lack advanced security controls. No incident response or vulnerability disclosure information is provided, indicating potential gaps in security transparency. Tracking scripts from Baidu and TRS suggest moderate user tracking without clear privacy disclosures. The absence of cookie consent and privacy policies further highlights compliance risks. Recommendations include implementing HTTPS, security headers, privacy policies, and incident response contacts to improve security maturity and regulatory compliance.
Strategic Recommendations
Priority Actions for Security Improvement
Implement HTTPS with HSTS and ensure all site resources load securely.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
China Oilfield Services Limited
China Oilfield Services Limited (COSL) is the leading integrated oilfield services provider in the Asian offshore market. COSL’s four main service divisions—Geophysical Services, Drilling Services, Well Services, and Marine and Transportation Services—cover the exploration, development, and production phases of the oil and gas industry. COSL operates a large fleet of vessels and rigs and offers advanced oilfield technical services.
good
consistent
Technical Stack
moderate
basic
basic
basic
Security Assessment
- No exposed sensitive data in HTML
- Search form input with basic validation
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website content is fully accessible and not blocked by WAF or security challenges.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
👤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
No HTTPS encryption
CRITICALGDPR requires appropriate security measures for personal data
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No HTTPS encryption
CRITICALNIS2 requires appropriate technical measures including encryption
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 NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
HIGHDetected sectors: energy, 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 DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
No BIMI Record
LOWBIMI displays brand logos in email clients
SPF Details
DMARC Details
MTA-STS Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
No HTTPS Encryption
CRITICALWebsite does not use HTTPS encryption, making all data transmission vulnerable to interception
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
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
LOWNo unnecessary services detected on common risky ports
How does cosl.com.sg compare?
cosl.com.sg scores below average. Browse similar domains to see how competitors handle security.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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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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