Whoisology - Connected database of whois records and whois history
Digicert - Encryption & Authentication
Bulk Whois API - Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, top notch support, and more.
Let's Encrypt - Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
SSL For Free - Free SSL Certificate issued in less than a minute.