Data encryption
TLS helps protect data in transit between a visitor's browser and your server.
SSL / TLS · GlobalSign
SSL certificates for websites, subdomains and online services. Choose domain or organisation validation — we can help find the right option.
Why you need a certificate
SSL is the familiar service name. Modern secure connections use TLS.
TLS helps protect data in transit between a visitor's browser and your server.
The browser checks the certificate trust chain and website name.
A correctly installed certificate lets visitors open your website over HTTPS without an untrusted certificate warning.
Choose validation first
DV, OV and EV differ in how the owner is checked. A more expensive certificate does not by itself provide stronger encryption.
Confirms control of the domain. For individuals and organisations.
One website, blog or web serviceChecks the domain and organisation details. The organisation name is included in the certificate.
A business website or serviceA more detailed check of the organisation's legal existence and details.
Projects with owner validation requirementsGlobalSign catalogue
Pricing covers the annual BILLmanager billing period. Confirm individual certificate validity and reissue terms when ordering.
7 certificates
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For a website with one domain name
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For a domain and its subdomains
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Domain validation with SAN options
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For several services on subdomains
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With verification of organisation details
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Organisation validation and subdomains
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With extended organisation validation
Choose DV or OV for subdomains. Discuss SAN options for several addresses with EV validation.
How many addresses need protection?
Address coverage is a separate choice. Wildcard and SAN serve different purposes and depend on the certificate.
When a certificate is needed for a specific website or service.
When several services run on subdomains at one level.
When several names are needed in one compatible certificate.
From choosing to HTTPS
Prepare a domain list and access for domain validation. OV and EV also require organisation details.
Decide the validation type and name list. Confirm issuance availability for your project before ordering.
Confirm domain control using an available method. Complete organisation validation for OV and EV.
Install the certificate and trust chain, check HTTPS and arrange timely renewal.
Customer reviews
Questions and answers
Owner validation, domain coverage and certificate validity.
More about SSL in our blog →DV confirms domain control. OV also validates the organisation; EV checks its legal existence and other details through an extended process. Choose validation for project requirements, rather than a promise of stronger encryption.
Yes. Individuals can use AlphaSSL and DomainSSL DV certificates, including Wildcard versions. OV and EV require organisation validation.
The entry *.example.com covers one level of subdomains, such as shop.example.com and mail.example.com. api.shop.example.com needs separate coverage. Confirm whether the base name example.com is included in your selected product.
SAN is an additional name in a certificate. It can combine several addresses in a compatible certificate. We agree the name list, Wildcard support and extra charges before ordering.
A year is the BILLmanager billing period, separate from the validity of each issued certificate. Confirm the current certificate validity, reissue and installation procedures when ordering.
Check your project requirements. HTTPS needs a correctly installed trusted certificate. Choose a paid product when you need a particular certificate authority, organisation validation or additional names.
TLS protects the connection and helps authenticate the server. Website security still requires updates, access controls, backups and other protection measures.
Timing depends on certificate type, domain validation and document checks. DV generally requires fewer steps than OV or EV. We confirm availability and the details needed for your domain and organisation before ordering.
We can help you choose
Provide the domain and required subdomains. Tell us about organisation or partner requirements so we can select suitable validation.
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