intoDNS - IntoDNS checks the health and configuration and provides DNS report and mail servers report.
Coinflo - The social wallet - It's like Venmo + Coinbase
Dnsstuff - DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering.
Facebook Pay - Send money to your friends via Messenger
MxToolBox - All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
Cash App - The easy way to send, spend, bank, and invest.