What is my IP address? The answer from our server
When you ask "what is my IP address?", you want the public address that websites see when you connect to them, and that is what this page shows. When the page opens, it sends one small request to our server, and the server answers with the address that request came from. The page itself is the same for every visitor: your address is fetched separately and is never part of the cached page.
Next to the address you see whether it is IPv4 or IPv6 and what kind of address it is. Press Copy IP to put it on your clipboard, for example for a firewall allowlist or a support ticket.
Public, private and CGNAT addresses
Your computer usually has more than one address. The one in your network settings, such as 192.168.1.23 or 10.0.0.5, is a private address. It only exists inside your home or office network. Your router translates it (NAT) to the public address your internet provider assigned, and that public address is the one this tool shows.
Some providers, especially mobile networks, add a second layer of translation. The address on the internet side of your router is then in the shared range 100.64.0.0/10, called carrier-grade NAT (CGNAT), and many customers leave the provider's network through the same public address. If your router reports an address from 100.64 to 100.127 and this page shows something else, you are behind CGNAT, which is why port forwarding from the internet may not work.
| Kind | Ranges | Meaning |
|---|---|---|
| Public IPv4 | Everything outside the special ranges | Routed on the internet; what websites see |
| Public IPv6 | 2000::/3 | Global unicast, often a separate address per device |
| Private | 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, fc00::/7 | Only valid inside a local network |
| CGNAT | 100.64.0.0/10 | Shared space inside a provider's network |
| Loopback, link-local | 127.0.0.0/8, ::1, 169.254.0.0/16, fe80::/10 | This device or this network segment only |
If the page ever shows a private or loopback address, you are on a local test server, or a proxy between you and the server is not passing your real address on.
IPv4 or IPv6: which one you see
This site can be reached over both IPv4 and IPv6. When your network supports IPv6, browsers normally prefer it, so you see an address with colons instead of a dotted IPv4 address. The tool shows the address of the connection your browser actually used; it cannot show the other family at the same time. For IPv6 it also prints the full expanded form, and for IPv4 the address as a 32-bit number, which some databases and firewall rules use. To see the network an address belongs to, enter it with a prefix length in the CIDR calculator.
Reverse DNS hostname
Look up hostname asks our server for the PTR record of your address: the reverse DNS name your provider publishes for it. Home connections often have a name that contains the address itself, and the name may reveal the provider or region. Many addresses, IPv6 ones in particular, have no PTR record at all, and the tool then says so. The lookup only ever runs for your own address, and its answer is kept for five minutes so that pressing the button again does not repeat the query. To look up any other address, use IP to Hostname.
Browser and device details
Below the address you see your browser, rendering engine, operating system and device type, read from your user agent string with the same parser as the User Agent Parser, plus screen size, window size, time zone, languages and whether cookies are enabled. The page reads these values in your browser. In Chromium-based browsers on Windows it also asks the browser's client hints to tell Windows 10 and Windows 11 apart, because both report "Windows NT 10.0". To see every header your browser sends with a request, open HTTP Request Headers Viewer.
Why there is no location
Many IP pages put a pin on a map. This one does not: it has no geolocation database and does not send your address to any other service to look one up. Location databases estimate a position from address registrations and routing data, so they are often wrong at city level, and with a VPN or a mobile connection they show where the exit point is, not where you are.
Privacy
Our server has to see your address to tell you what it is, as every website does when it answers a request. This tool does not save your address in a database or write it to a log file, and its answers are marked so that neither your browser, our page cache nor the CDN keeps a copy. To limit abuse, the server keeps request counters keyed by a hash of the address (60 checks and 10 hostname lookups per minute), which expire after a minute. Copy report and Download JSON run in your browser and contain only what is on the screen.