IP Checker — What Is My IP Address?

An IP (Internet Protocol) address is the numeric label assigned to every device or service that connects to the internet. When your browser requests a page, the server needs an address to send the response back to — that address is your public IP. The banner at the top of this page shows yours right now.

IPv4 vs IPv6

There are two versions of the Internet Protocol in active use:

IP addresses are allocated in blocks to regional internet registries (RIRs like RIPE NCC or ARIN), which assign them to organizations — ISPs, cloud providers, enterprises. Geolocation databases such as MaxMind GeoLite2 aggregate these registry records, routing data, and user-contributed corrections to map IP ranges to locations. ASN databases do the same for the organizations that announce address blocks via BGP.

Accuracy caveat: country-level accuracy is typically 95-99%, but city-level results are less precise. The coordinates usually point to the ISP's registered office or network hub, not the actual device. IP geolocation is a best estimate — it is not GPS.

• Firewall allowlists — before granting a partner or vendor access, verify their egress IP actually resolves to the organization they claim.
• Verifying egress IPs — services behind NAT or egress gateways present a shared public IP; confirm which one your workloads appear as before registering it with a third-party API.
• CDN and Cloudflare debugging — compare the client IP your origin server sees against the CDN edge forwarding headers to chase caching or rate-limit issues.
• Geo-restricted APIs — many providers gate endpoints by source country; an IP lookup tells you whether your CI pipeline or proxy will pass the check.
• GDPR data residency — for EU workloads, knowing where an IP geolocates (and who owns it) is the first step in a data-residency review.