Why does my computer show a different IP?

Device settings may show a private LAN address. This page shows the public address reaching the website. NAT, VPNs, proxies and mobile carrier sharing can make them different.

Where can I find my private IP?

On Windows, run ipconfig in Command Prompt; on Linux, run ip addr and inspect the active interface. On macOS, open network details in System Settings. On iPhone, iPad and Android, inspect the connected Wi-Fi details. Names vary by OS version. Distinguish that address from the public IP shown here.

Can this verify my VPN?

Compare the IP and ASN before and after connecting. A change can indicate a different exit, but does not prove VPN security or that every app uses the VPN.

Does my IP stay the same?

It depends on the connection and subscription. Reconnecting or switching networks or VPNs may change it. Opening this page over another network shows that network's address, even if your usual connection has a fixed IP.

Can an IP or hostname identify a person or address?

These results alone cannot identify a person or street address. Organization and reverse DNS names describe network administration. Geolocation is not displayed on this page.

Is unavailable browser information an error?

Not necessarily. Browser support, disabled JavaScript and privacy features can withhold fields. Connection type, memory and speed may be approximate or rounded even when supported.

Can I inspect another IP or device?

This page checks the browser currently opening it. It does not accept arbitrary IP queries or obtain another person's device information.

What is my IP address?

See your public IP, connection and browser information. Use the results to compare networks or explain a problem to support.

Instructions, guides and related tools

Result

Your IP for this connection

216.73.217.100

IPv4

This is the address seen by this website. With a VPN or proxy, it is usually the exit address.

Reverse hostname (PTR): Reverse (PTR) lookup failed (upstream error, not a missing record)
DNS fetched at: 2026-10-17T11:26:10.317Z

A missing PTR alone does not indicate a connection fault. Only the IP version used for this request is shown.

Connection and network

These values describe the connection to our delivery edge. An ASN identifies a network, not a person or street address. Round-trip values estimate this connection; they are not an ICMP ping or speed test.

Network number (ASN): AS16509
Network organization: Anthropic, PBC
HTTP protocol: HTTP/2
TLS version: TLSv1.3
TLS cipher suite: AEAD-AES256-GCM-SHA384
Estimated TCP round trip: 3 ms
Estimated QUIC round trip: 0 ms

Request information received by the server

Settings sent when opening this page. Browsers or intermediaries may omit or alter them. Cookie contents, credentials and referrer URLs are not displayed.

User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Preferred languages (Accept-Language): Unavailable or not reported
Accepted media types (Accept): */*
Accepted content encodings: gzip, deflate, br
Do Not Track (DNT): Unavailable or not reported
Global Privacy Control (GPC): Unavailable or not reported

Browser information on this device

The following values are read within this page. This feature does not send them to a server or save them automatically. Unsupported or withheld values remain unavailable. Reported and estimated values do not guarantee actual network speed.

Viewport: Requires JavaScript
Screen dimensions: Requires JavaScript
Color depth: Requires JavaScript
Device pixel ratio: Requires JavaScript
Browser-reported User-Agent: Requires JavaScript
Reported platform: Requires JavaScript
Browser languages: Requires JavaScript
Time zone: Requires JavaScript
Device time: Requires JavaScript
Cookie setting: Requires JavaScript
Reported online status: Requires JavaScript
Maximum touch points: Requires JavaScript
Reported logical processors: Requires JavaScript
Approximate device memory: Requires JavaScript
Inline PDF support: Requires JavaScript
Estimated effective connection type: Requires JavaScript
Estimated downlink: Requires JavaScript
Estimated network round trip: Requires JavaScript
Data saving preference: Requires JavaScript
Do Not Track (DNT): Requires JavaScript
Global Privacy Control (GPC): Requires JavaScript

The report contains IP, network and device information. Share only the fields needed by the recipient.

Data sources and specifications

IP and connection metadata come from Cloudflare; reverse DNS comes from a public DNS query. Browser information uses APIs available on this device.

Related checks and services

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What this check does

Check the public IP reaching this website, reverse DNS (PTR), network number (ASN) and connection encryption. Our delivery infrastructure observes connection information. Device information is browser-reported and may be omitted or rounded for privacy. These values do not identify a person or street address.

How to read the result

To compare Wi-Fi, mobile data or a VPN, switch connections and refresh. When contacting support, include the time, network used, symptoms and relevant results. IP and PTR alone cannot establish safety. Avoid publishing the full report; share only the fields the recipient needs.

Glossary

Public and private IPs: A public IP is used on the internet. Private addresses such as 192.168.x.x identify devices inside a local network. NAT and carrier sharing can place several devices or customers behind one public IP.
IPv4 and IPv6: IPv4 uses dots; IPv6 uses colons. This page shows the version used for this connection. Seeing only one version does not prove the other is unavailable.
PTR (reverse DNS): A DNS record mapping an IP to a hostname, configured by the IP operator. A missing PTR does not necessarily prevent web browsing, and the name does not establish the visitor's identity.
ASN: A number identifying an internet network. A VPN or transit provider's organization may appear. It is separate from the subscriber's name, current location or street address.
TLS and round-trip time: TLS encrypts this connection. Round-trip time estimates latency to our delivery edge; it does not measure download speed or performance to other websites.

FAQ

Why does my computer show a different IP?: Device settings may show a private LAN address. This page shows the public address reaching the website. NAT, VPNs, proxies and mobile carrier sharing can make them different.
Where can I find my private IP?: On Windows, run ipconfig in Command Prompt; on Linux, run ip addr and inspect the active interface. On macOS, open network details in System Settings. On iPhone, iPad and Android, inspect the connected Wi-Fi details. Names vary by OS version. Distinguish that address from the public IP shown here.
Can this verify my VPN?: Compare the IP and ASN before and after connecting. A change can indicate a different exit, but does not prove VPN security or that every app uses the VPN.
Does my IP stay the same?: It depends on the connection and subscription. Reconnecting or switching networks or VPNs may change it. Opening this page over another network shows that network's address, even if your usual connection has a fixed IP.
Can an IP or hostname identify a person or address?: These results alone cannot identify a person or street address. Organization and reverse DNS names describe network administration. Geolocation is not displayed on this page.
Is unavailable browser information an error?: Not necessarily. Browser support, disabled JavaScript and privacy features can withhold fields. Connection type, memory and speed may be approximate or rounded even when supported.
Can I inspect another IP or device?: This page checks the browser currently opening it. It does not accept arbitrary IP queries or obtain another person's device information.

Updated: 2026-09-16