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Global Website Security Solutions
SSL
Certificates
Encryption Protection for Enterprise Websites
Certified by international Certificate Authorities (CA) to establish high-strength 256-bit encrypted channels. We eliminate browser “Not Secure” warnings, protect user privacy, and boost your SEO rankings—building unshakeable brand trust.
100%
Encryption
Browser
Compatible
SEO
Advantage
Economy S
Basic Plan
Cost-effective, SEO Optimized
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Coverage: Supports both www.site.com & site.com
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Validation: DV (Domain Validation), issued in 15 mins
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Encryption: Up to 256-bit industrial-grade
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Key Length: 2048-4096 bit
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Compatibility: 99.9% Browser & Mobile support
Business M
Recommend 
Unlimited Subdomains, Unified Management
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Coverage: Main domain + All subdomains (Wildcard: *.site.com)
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Validation: DV (Domain Validation), fast online automated audit
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Encryption: Up to 256-bit industrial-grade
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Key Length: 2048-4096 bit
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Compatibility: 99.9% Browser & Mobile support
Professional L
Advanced Plan
Multi-Domain Integration, Custom Config
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Coverage: 3 to 100 different domains (SANs)
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Validation: DV (Domain Validation), flexible multi-domain management
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Encryption: Up to 256-bit industrial-grade
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Key Length: 2048-4096 bit
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Compatibility: 99.9% Browser & Mobile support
Enterprise XL
Enterprise
Identity-Verified Business Standard
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Coverage: Main domain + All subdomains (Wildcard)
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Assurance: High Assurance / Business Design
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Validation: OV (Org), Phone/Paper Audit (2 Days)
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Encryption: Up to 256-bit industrial-grade
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Key Length: 2048-4096 bit
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Compatibility: 99.9% Browser & Mobile support
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- If you have other specific requirements regarding server specifications or performance, please feel free to contact us at 04-2313-0319 or email support@csn.com.tw. The CSN service team is always available to provide you with online support and consultations. Thank you.
- To ensure optimal compatibility, the security icon style in the address bar will be displayed in accordance with the standards of the browser you are using.
- Regarding security levels, we recommend choosing OV (Organization Validation) or EV (Extended Validation) certificates. These certificates require rigorous in-depth verification by a third-party authority. They effectively communicate the reliability of your website to visitors and are key indicators for building a professional brand image and enhancing user trust.
What Can We Do？
UNIVERSAL
TRUST
Top-Tier Encryption
Utilizing symmetric & asymmetric tech to ensure data privacy during transmission.
Universal Compatibility
Trusted by 99% of global browsers and devices with secure connection status.
SEO Boost
Officially verified by Google to improve search rankings and discoverability.
Trust Indicators
Certified static or dynamic security seals to effectively boost conversion rates.
Dell Power
Powered by high-end DELL hardware to guarantee stability and performance.
Premium Network
Connected to Taiwan’s telecom backbone for a secure, ultra-fast experience.