What is my IP? - Find out what your IP is. Do not hesitate to open wimip.
ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database
GRC Port Scan - GRC Internet Security Port Scanner. Tests for open ports on your external IP address.
ipinfo.io - Simple IP address information.
geoiplookup.net - (IPv4 only) Online tool to get accurate IP address information
ipdata.co - Get the Geolocation, Organisation, Currency, Timezone, Calling Code, Flag, Proxy, Tor and Threat intelligence data from any IPv4 or IPv6 address.