Wildcard certificate

Wildcard certificates do not valid for *.example.com or www.example.com and example.com. If you need a cert to work for example.com and www.example.com, you need to request a certificate with subjectAltNames so that you have "example.com" and "*.example.com".

See also

• HTTP, HTTP client, HTTP/1.1, HTTP/2, HTTP/3, HTTPS, HSTS CSR, TLS, SSL, openSSL, WebSockets, WebRTC, ssl_certificate QUIC, HPKP, CT, List of HTTP status codes, URL redirection, Content-type:, Webhook, HTTP headers, --insecure, Axios HTTP client, HTTP cookies, HTTP ETag, Hypertext Transfer Protocol -- HTTP/1.1
• DNS: Linux DNS, IP, systemd-resolve, /etc/hosts, whois, Domain registrar, dig, host, nslookup, scutil --dns dnsmasq, bind, delv, .local, .internal, .onion, FQDN, TTL, /etc/resolv.conf, /etc/systemd/resolved.conf, dscacheutil (macOS), hostname, hostnamectl, bind, resolvectl status, DNS sinkhole, Domain name server, LLMNR, Resource records:MX, TXT, NS, CAA, SSHFP, Apex, CNAME, Wildcard DNS records, Subdomain, /etc/nsswitch.conf, 1.1.1.1, 8.8.8.8, CoreDNS, dnsPolicy:, Google Public DNS, DNS caches, Kubernetes ExternalDNS, DNS forwarding, IDNA2008, DNS-1035, Domain name registrars, Split-view DNS, Pi-hole, NextDNS