Wildcard DNS and Valid SSL Certificates for Everyone.
sslip.io combines a wildcard DNS matched with a valid wildcard SSL certificate and key to provide valid SSL certificates.
Your server's fully-qualified domain name (FQDN) will the format w-x-y-z.sslip.io, where "w-x-y-z" is the IPv4 address of your server, with dashes rather than dots separating each octet.
For example, this web server's FQDN is