Private vs Public IP Addresses Explained
Understand the difference between local private IP addresses, public IPs and carrier-grade NAT.
Private address ranges
Common IPv4 private ranges are 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16. They are intended for internal networks and normally are not directly routed across the public internet.
Your public address
A website generally sees the internet-facing address of your connection or VPN, not necessarily the private address assigned to your laptop or phone.
Check before troubleshooting
Use the IP Checker for address validity, the IPv4 Classifier for special ranges, and What Is My IP to see the externally visible address.
Try it yourself
Use the related NetToolForge utility and compare the results with the explanation above.