Install an SSL Certificate
Use the following information on this page to install your SSL Certificate. Our SSL Certificates will work with any server, device, hosting account or application that supports the use of an SSL Certificate.
The following links will take you to the SSL Certificate installation instructions for various servers and control panels. The documentation is provided by our partners, click the relevant link below and it will open in a new window.
SSL Certificates can be used in a variety of applications. If your server is not listed or you need additional information, refer to your server documentation or contact your server vendor.
Intermediate Certificates for Trustico® branded SSL Certificates issued after 24 May 2025 are available for download. More Information 🔗
About Installation Support
Due to the large amount of different web servers, control panels and uses for our products we do not offer dedicated installation support. However, feel free to Contact Us 🔗 via online e-mail or live chat and we'll attempt to help to the best of our abilities if you are experiencing a technical problem.
Visit our Premium Installation 🔗 page if you require us to install your SSL Certificate. Premium Installation is an additional service which must be purchased at the time of ordering.
More Resources
This document shows the new (in-use in 2024/2025) Sectigo® issuing CAs and hierarchies, including cross-certificates. Sectigo® CA Hierarchy 🔗
Our SSL Certificates work with any device that supports the use of an SSL Certificate. If you are experiencing any problems with ubiquity, it may be due to the installation of an incorrect intermediate or root. Older devices may not work with all intermediates, ensure you install the most relevant intermediates for your environment. Intermediate Certificate Information 🔗
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PositiveSSL DV Single Site
Vendor :Sectigo CARegular Price From ¥7,400 JPYRegular Price -
Trustico® DV Single Site
Vendor :Trustico CARegular Price From ¥7,400 JPYRegular Price -
PositiveSSL DV + Wildcard
Vendor :Sectigo CARegular Price From ¥26,900 JPYRegular Price -
Trustico® DV + Wildcard
Vendor :Trustico CARegular Price From ¥37,400 JPYRegular Price -
Sectigo® DV Single Site
Vendor :Sectigo CARegular Price From ¥10,400 JPYRegular Price -
PositiveSSL DV + Multi Domain
Vendor :Sectigo CARegular Price From ¥14,900 JPYRegular Price¥0 JPYSale Price From ¥14,900 JPY

We Match Our Competitors Prices
We'd prefer not to lose your business, if you have found a cheaper price we'll ensure to welcome you as a customer of Trustico® by matching the price you have found elsewhere.
Trustico® Blog Posts
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Private Key in Windows SSL Certificates
Without a properly associated private key, your SSL Certificate cannot establish secure connections or authenticate your server identity.
Private Key in Windows SSL Certificates
Without a properly associated private key, your SSL Certificate cannot establish secure connections or authenticate your server identity.
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Client Authentication Extended Key Usage (EKU) ...
The Client Authentication Extended Key Usage (EKU) is an extension in SSL Certificates that enables their use in authenticating users or devices to servers, commonly in mutual TLS (mTLS) or...
Client Authentication Extended Key Usage (EKU) ...
The Client Authentication Extended Key Usage (EKU) is an extension in SSL Certificates that enables their use in authenticating users or devices to servers, commonly in mutual TLS (mTLS) or...
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Which ACME Challenge Type Should I Use? HTTP-01...
The two primary ACME challenge types, HTTP-01 and DNS-01, each serve distinct purposes in the domain validation process.
Which ACME Challenge Type Should I Use? HTTP-01...
The two primary ACME challenge types, HTTP-01 and DNS-01, each serve distinct purposes in the domain validation process.