A wildcard SSL certificate protects all subdomains of your domain with a single certificate. It is issued as *.yourdomain.com.
What does it cover?
| Address | Status |
|---|---|
www.yourdomain.com, blog.yourdomain.com, shop.yourdomain.com | Covered |
yourdomain.com (main domain) | Included as an extra name in most certificates |
shop.blog.yourdomain.com | Not covered (second-level subdomain) |
Advantages
- When you add a new subdomain, you do not need another certificate.
- One certificate is easy to manage and renew.
- Cheaper if you have many subdomains.
When creating the CSR for a wildcard certificate, enter the domain as *.yourdomain.com. Let's Encrypt wildcard certificates are only issued with DNS validation.
Wildcard options: SSL Certificates
