Short answer
A wildcard certificate covers every subdomain of a domain at once —
*.yourdomain.com — rather than naming each one. Certificates covering individual subdomains issue automatically on Traxio, so most accounts never need one.This is a general web-hosting explanation, not specific to Traxio.
Learn more
- SSL certificates for subdomainsHow subdomains get SSL on Traxio, how long it takes after creating one, and what to do if a subdomain shows a certificate warning.
- How free SSL certificates work on TraxioHow your free certificate is issued and renewed automatically, what it needs from your DNS, which names it covers, and how to check its status.