GRC Port Scan - GRC Internet Security Port Scanner. Tests for open ports on your external IP address.
TEQNIX.io - Online Penetration testing tools and automations
geoiplookup.net - (IPv4 only) Online tool to get accurate IP address information
SmartScanner - SmartScanner is an AI-powered web vulnerability scanner for testing security of web sites and applications
whatismyip.cc - External IP Address lookup tool with option to scan the external IP address.
Endpoint Protector by CoSoSys - Endpoint Protector is a leading developer of multi-OS Data Loss Prevention (DLP) solutions