GRC Port Scan - GRC Internet Security Port Scanner. Tests for open ports on your external IP address.
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
What is my IP? - Find out what your IP is. Do not hesitate to open wimip.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
whatismyip.cc - External IP Address lookup tool with option to scan the external IP address.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.