Multi-Level Wildcard SSL

What is a multi-level wildcard SSL certificate?

An Exhaustive Guide to Multi-Level Wildcard SSL: Securing Your Subdomains with Ease

In today's digital ecosystem, where data security is paramount, SSL certificates have become a staple for businesses, especially for those that operate on multiple subdomains. For such businesses, a multi-level wildcard SSL certificate can be a real game-changer. This blog post will explore this specialized SSL certificate, its advantages, and how it can revolutionize online security for your business.

Understanding The SSL Landscape

Secure Sockets Layer (SSL) certificates have become the backbone of website security. They provide a secure connection between the client and the server, protecting sensitive information from being intercepted by unauthorized parties. However, with the evolution of online businesses and their expanding digital footprints, the need for specialized SSL certificates has emerged - one such being the multi-level wildcard SSL.

Defining Multi-Level Wildcard SSL

A multi-level wildcard SSL certificate is a type of SSL certificate designed to secure various levels of subdomains under a single domain. Unlike a single domain certificate, which secures a single domain, a multi-level wildcard SSL can secure an unlimited number of first-level and second-level subdomains. This comprehensive coverage eliminates the need for multiple SSL certificates, making it a more cost-effective and efficient solution for businesses that operate on multiple subdomains. For instance, a multi-level wildcard SSL certificate for '*' would secure the primary domain and its subdomains such as:
  •, etc.

Highlighting the Features of a Multi-Level Wildcard Certificate

A multi-level wildcard SSL certificate comes with an array of features that make it a viable security solution for businesses with multiple subdomains. Let's delve into these features:
  • Unlimited Subdomains:
    It secures multiple subdomains, including the main domain and any number of subdomains, making it ideal for websites with numerous subdomains.
  • 100% Browser Compatibility:
    This certificate is compatible with all major web browsers, mobile browsers, web servers, and OS platforms, ensuring a seamless user experience.
  • Multiple Validation Options:
    Depending on the size and nature of your business, you can choose from Domain Validation and Organization Validation options.
  • Unlimited Reissuances:
    The certificate comes with an unlimited reissuance feature, allowing you to request a certificate reissue in case of SSL expiration, domain changes, SSL upgrades, or data breaches.
  • Robust SSL Encryption:
    The 256-bit SSL encryption ensures that all subdomains are secure, protecting sensitive data from unauthorized access.
  • Enhanced Trust:
    By securing all subdomains with a single certificate, it improves the reputation and trustworthiness of your website.
  • Simplified Certificate Management:
    The certificate reduces the administrative overhead associated with managing multiple certificates.
  • Visible Security Indicators:
    The certificate enables high-end trust symbols in all top web browsers like Padlock icon and HTTPS indicators, reassuring your users about the security of your website.

Types of Domains Secured by a Wildcard SSL Certificate

A Wildcard SSL certificate can secure a variety of domains, including:
  • Subdomains:
    It can secure multiple subdomains under a single domain.
  • Root Domain:
    The root domain (for instance, can also be secured by a Wildcard SSL Certificate.
  • Multiple Domains:
    The certificate can also secure multiple domains.
  • Multi-Level Subdomains:
    Multiple levels of subdomains (for instance, *, *, etc.) can also be covered by these certificates.
It's important to note that a multi-level wildcard SSL certificate only secures the domain and subdomains for which they are issued. They do not secure any additional domains or subdomains not covered by the certificate.

The Working of a Multi-Level Wildcard Certificate

A multi-level wildcard certificate works by securing multiple levels of subdomains within a single certificate. When a Certificate Authority issues it, the certificate covers a specific domain and all of its subdomains, including subdomains of subdomains. When a user accesses a subdomain secured by a multi-level wildcard certificate, their browser establishes a secure, encrypted connection with the website. This secure connection protects sensitive information like passwords, credit card details, and other personal data from being intercepted by malicious third parties. By enabling secure data transmission across multiple levels of subdomains, these SSL certificates provide a comprehensive and flexible solution for businesses. With only one certificate to manage, the cost and complexity of certificate maintenance are significantly reduced.

Best Multi-Level Wildcard SSL Certificate Providers

Several Certificate Authorities offer multi-level wildcard SSL certificates. Some of the top providers are Comodo and Sectigo. Their offerings include:
  • Sectigo UCC SSL Wildcard:
    Ideal for Microsoft Exchange and Office Communication services, this certificate allows multiple domains to be secured under a single SSL certificate.
  • Comodo Multi-Domain SSL Wildcard:
    This certificate allows multiple domains to be secured under a single SSL certificate.
There are also single subdomain SSL certificates from trusted Certificate Authorities like:
  • Comodo Wildcard SSL:
    A premium certificate offering the highest level of trust, validation, and encryption for multiple subdomains.
  • Sectigo PositiveSSL Wildcard:
    A cost-effective solution for securing multiple subdomains under a single domain.

In Conclusion

By investing in a multi-level wildcard SSL certificate, you can secure unlimited subdomains, simplify your security efforts, and save money. It also enhances customer trust in your brand and can even boost your search engine rankings. As a business, especially one operating in the digital space, it's crucial to ensure the security of your online presence. So, secure your digital empire today with a multi-level wildcard SSL certificate and give your customers the peace of mind they deserve.

About ASPGulf

ASPGulf is the oldest managed hosting service provider in the Middle East, based in UAE. We understand the importance of online security, and through our comprehensive solutions, we aim to provide businesses with the highest level of protection. Trust ASPGulf with your hosting needs for top-notch service and unparallel security.

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This post is written by a Cyber-Security Enthusiast who is passionate about keeping up with the latest advancements in the Web/Cyber Security niche. Along with theoretical knowledge, I also implement my practical expertise in day-to-day tasks and help others protect themselves from threats.

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