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What Is My IP?

Wynik głównydetected
publicIPv4
Bieżące publiczne IP
216.73.216.82
Analiza łańcucha żądań1
1
216.73.216.82
Szczegóły techniczne (zwijane)
Zwinięte domyślnie, aby uniknąć szumu czytania.

Free online tool to view your current public IP address. Automatically detects IPv4/IPv6, geolocation, ISP ASN, and HTTP request header information as soon as the page loads. Also provides command-line query methods like curl/PowerShell/Python, perfect for server whitelist configuration, proxy/VPN troubleshooting, remote connection confirmation, and network fault diagnosis - open and use immediately, no installation required.

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Przypadki użycia

  • Confirm your current exit IP address before configuring server whitelists, database access permissions, or third-party API authorizations
  • Troubleshoot exit IP changes caused by proxies, VPNs, or CDNs, and verify if proxy services are actually working
  • Confirm the public IP address of your current network environment before remote desktop, SSH, or database connections
  • Check if your network supports IPv6 dual-stack access and see which protocol version your current connection is prioritizing
  • Website administrators can compare IP addresses in access logs against actual exit IPs to troubleshoot logging issues
  • Confirm client IP addresses that need to be allowed when configuring firewall rules or cloud server security group policies
  • Diagnose network faults to confirm if there are IP hijacking, carrier-grade NAT, or routing anomalies
  • Quickly verify if exit IP has changed after switching Wi-Fi, mobile data networks, or VPN nodes
  • Quickly obtain public IP via commands like curl in command-line/script environments for automation scripts and CI/CD pipelines

Funkcje

  • Server-side rendering (SSR) + client refresh dual mode - public IP is visible when page HTML loads, no need to wait for JS execution
  • Automatically detects and displays both IPv4 and IPv6 dual-stack addresses, supporting Happy Eyeballs dual-stack environments
  • Intelligent IP address classification labels: automatically identifies public, private, loopback, CGNAT, link-local, and other types
  • Displays IP geolocation information: country, province/region, city, ISP/ASN number
  • Complete request chain visualization: parses proxy headers like X-Forwarded-For, X-Real-IP, CF-Connecting-IP, True-Client-IP, displaying the complete IP chain
  • Browser network status detection: online status, network connection type (WiFi/4G/5G), estimated downlink speed, platform, language
  • One-click expand for technical details: displays complete HTTP request header details (User-Agent, Accept-Language, various proxy headers)
  • One-click copy for IP address and complete request chain, convenient for server whitelist configuration, firewall rule configuration, and technical support communication
  • Provides multiple command-line query code examples including curl/PowerShell/Python, suitable for script and CI/CD environments
  • Compatible with real IP identification across various reverse proxy and CDN architectures including Cloudflare, Nginx, HAProxy, AWS ALB
  • Includes reference materials like private IP address range table and curl public IP service comparison table, all content server-side rendered for SEO

Jak Używać

  1. Open this page in your browser - your public IP address will be obtained during server-side rendering and displayed as soon as the page loads
  2. View the large-font IP address at the top, marked with IP version (IPv4/IPv6) and classification (public/private/loopback, etc.)
  3. Check the geolocation section for country, region, city, and ISP ASN information corresponding to the IP
  4. View the candidate IP list in the request chain section after proxy, CDN, and load balancing forwarding to understand the complete request path
  5. Check the browser network section for your current network status, connection type, estimated downlink speed, and platform language
  6. Expand technical details to view complete HTTP request headers: X-Forwarded-For, X-Real-IP, CF-Connecting-IP, User-Agent, etc.
  7. Click the refresh button to re-detect the IP address - refresh is recommended after switching networks to confirm the latest results
  8. Click the copy button to instantly copy the IP address or complete request chain for easy pasting into whitelist configurations or technical documentation

Często Zadawane Pytania

How do I view my current public IP address?

The easiest way is to open this page - your IP address will be automatically parsed from HTTP request headers during server-side rendering, and you can see your current public IP after loading. If you're in a command-line/server environment, you can quickly get it using curl: curl -s ifconfig.me or curl -s ipinfo.io. Windows users can execute (Invoke-WebRequest -Uri "ifconfig.me" -UseBasicParsing).Content in PowerShell.

IP Geolocation Lookup

Why is the displayed IP different from my computer's local IP?

Because this page shows your public exit IP, while the IP configured on your computer's network adapter is usually a LAN private address (like 192.168.x.x, 10.x.x.x). When you access the Internet through a router, the router uses NAT (Network Address Translation) to convert internal private IPs to public IPs - servers on the Internet see the converted public IP, not your device's LAN IP. If you use a VPN or proxy, the displayed IP will be the VPN/proxy server's exit IP.

What is NAT?

Can an IP address reveal my specific location/home address?

No. IP geolocation can only roughly infer country, province, and city level, at most locating to a carrier's point of presence (BRAS device location) - it cannot pinpoint to street, neighborhood, house number, or specific room. IP addresses themselves do not contain personal identity information such as name, phone number, or ID number. Specific user identity information can only be provided by ISPs when cooperating with law enforcement, and requires combining precise access times and log records. An IP address alone cannot obtain personal identity or precise address.

Can someone hack my computer just by knowing my IP address?

Merely knowing an IP address is not enough to hack your computer. Modern operating systems (Windows/macOS/Linux) all have built-in firewalls that block unsolicited inbound connections by default; home routers also have NAT firewalls that prevent direct access to internal network devices from outside. Successful hacking usually also requires: known vulnerabilities in systems/software, you actively clicking malicious links or running viruses/trojans, or opening weakly-passworded services to the outside (like ports 3389, 22). Keeping your system updated, not downloading software from unknown sources, and using strong passwords will ensure basic security.

Port Scanner Checker

Why does my IP change when I switch networks/VPN?

After changing Wi-Fi networks, switching mobile data, connecting to different VPN nodes or proxy servers, your Internet exit changes, and your public IP will change accordingly. Most home broadband uses dynamic IP allocation (DHCP) - IP may also change after rebooting the optical modem or router. A few enterprise broadband or cloud servers use static IPs (fixed IPs) that do not change with network reboots. Before configuring server whitelists and firewall rules, it's recommended to reopen this page in the new network environment to confirm the current IP.

What's the difference between IPv4 and IPv6? Why do we need IPv6?

IPv4 uses 32-bit addresses with a total of about 4.3 billion addresses, officially exhausted in 2019. IPv6 uses 128-bit addresses, providing about 3.4×10³⁸ addresses (enough to assign an IP to every grain of sand on Earth), completely solving the address exhaustion problem. IPv6 also has more efficient routing structure, built-in IPSec encryption, better QoS support, Stateless Address Autoconfiguration (SLAAC), and eliminates NAT for true end-to-end communication. Currently, the three major domestic ISPs have basically completed IPv6 deployment, and more and more websites support IPv6 dual-stack access.

IPv4 Format Converter

What's the difference between public IP and private IP? How to tell them apart?

Public IPs are globally uniquely routable addresses assigned by ISPs that can be directly accessed on the Internet. Private IPs are addresses reserved by IANA for internal LAN use that can be reused in different LANs, cannot be routed directly on the public Internet, and require NAT conversion to access the Internet. Private IP ranges include: 10.0.0.0/8 (starts with 10), 172.16.0.0/12 (starts with 172.16-31), 192.168.0.0/16 (starts with 192.168), 100.64.0.0/10 (carrier CGNAT), 127.0.0.0/8 (loopback). This tool automatically displays IP classification labels (public/private/loopback, etc.).

Private Address Range Table

Why is IP geolocation inaccurate/showing another city?

Common reasons for inaccurate IP geolocation: 1) Using a VPN/proxy, showing the proxy node location; 2) ISPs using provincial unified exits rather than local city-level exits (especially common with mobile networks); 3) IP address ranges have just been reallocated but the GeoIP database hasn't been updated yet; 4) ISPs using CGNAT (carrier-grade NAT) with multiple users sharing exit IPs; 5) Enterprise dedicated lines using headquarters registered addresses rather than actual branch locations. City-level accuracy of IP geolocation databases is about 80-90%, district/county-level accuracy is even lower.

What are 192.168.1.1, 127.0.0.1, and localhost respectively?

192.168.1.1 is the most common Class C private IP address, typically the default admin panel address for home routers - accessing http://192.168.1.1 in a browser enters the router settings interface. 127.0.0.1 is the IPv4 loopback address, localhost is its hostname, always pointing to your own device - accessing localhost does not go through the network card, mainly used for local service development and testing (like accessing a local development server http://localhost:3000). If you can't ping 127.0.0.1, there's a fault in your local TCP/IP protocol stack.

Loopback Address Details

What's the difference between static IP and dynamic IP? Which is better?

Static IPs are fixed public IPs that don't change when rebooting routers or reconnecting networks, usually requiring additional payment to ISPs, suitable for scenarios that need to provide external services (like enterprise website servers, VPN gateways, remote video surveillance access, self-hosted game servers, etc.). Dynamic IPs are dynamically allocated by ISPs via DHCP and may change each connection - ordinary home broadband defaults to dynamic IPs, with the advantage of no extra cost and flexible address resource scheduling by ISPs. Regular users don't need static IPs for web browsing.

What is X-Forwarded-For? Why can I see multiple IPs?

X-Forwarded-For (abbreviated XFF) is an HTTP standard request header used to record each layer of IP address in the request path through proxies/CDNs/load balancers, formatted as a comma-separated list of IPs. The leftmost is the original client's real IP, followed by each layer of proxy IP in order. For example, `X-Forwarded-For: User IP, CDN node IP, load balancer IP`. This tool's 'Request Chain' section completely displays all candidate IPs to help you troubleshoot proxy configuration issues. Similar headers include X-Real-IP (Nginx), CF-Connecting-IP (Cloudflare).

HTTP Headers CheckGlossary: X-Forwarded-For

How do I hide or change my public IP?

Common methods include: 1) Using a VPN service where traffic is forwarded through VPN servers, and target websites see the VPN server IP; 2) Using HTTP/SOCKS5 proxy servers; 3) Using the Tor anonymity network; 4) Connecting to public Wi-Fi (using a different network exit). These methods can change the publicly displayed IP and provide a certain degree of privacy protection. Please note: When using VPN/proxies, you should comply with local laws and regulations and not use them for illegal activities.

What is CGNAT (carrier-grade NAT)? Why can't I do port mapping?

CGNAT (Carrier-Grade NAT, RFC 6598) is NAT deployed by ISPs at the backbone level to alleviate IPv4 address exhaustion, with multiple users (usually dozens to hundreds of households) sharing the same public IP. The characteristic is that the IP obtained by the router WAN port is in the 100.64.x.x-100.127.x.x range (belonging to the 100.64.0.0/10 reserved range). In a CGNAT environment, users cannot directly access internal network devices from the external network - functions like port mapping, P2P downloads, remote desktop, and game server hosting will be restricted. Solutions are applying for a public IP or upgrading to IPv6.

Why do I see both IPv4 and IPv6? Which one is actually being used?

If your network environment is assigned both IPv4 and IPv6 addresses (dual-stack network, Dual-Stack), the operating system and browser will automatically select the preferred protocol based on network conditions. Modern browsers typically use the Happy Eyeballs algorithm (RFC 8305), simultaneously attempting IPv4 and IPv6 connections, and using whichever connects first. When visiting this tool, whichever version of IP is displayed on the page indicates which protocol is being prioritized for the current connection. Using curl -4 or curl -6 can force a specific protocol version for testing.

Which IP should I use when configuring server/firewall whitelists?

When configuring whitelists, you should use the main IP address displayed in large font at the top of this tool (i.e., the public IP labeled public as its classification). Recommendations: 1) Refresh this page to confirm IP before configuration; 2) If the network has multiple exit lines (telecom/unicom/mobile), obtain corresponding IPs under each line environment and add all of them; 3) Note that home broadband IPs may change - apply for static IPs or use dynamic DNS (DDNS) if necessary; 4) If using VPN/proxy, make sure to obtain IP in the real office network environment.

What are the risks if my IP address is leaked? Should I be worried?

When browsing websites normally, the website server will necessarily see your public IP (otherwise it can't return data to you) - this is how HTTP protocol works, there's no such thing as a 'leak'. IP addresses themselves are not sensitive information, and regular users don't need to worry excessively. Potential risks include: 1) DDoS attacks (targeting gamers/service operators); 2) IP bans (being mistakenly banned by forums/games affecting other users on the same IP); 3) Rough geographic location being inferred. Regular internet users browsing normally don't need to hide their IPs - those engaged in sensitive activities should use trustworthy VPNs.

What common services are there to view public IP from the command line?

Common public IP query API services include: ifconfig.me (most classic, supports plain text/JSON), ipinfo.io (returns the richest JSON information including geolocation/ASN), icanhazip.com (operated by Cloudflare, minimal output), api.ipify.org (open source, stable), ifconfig.co (fast), ident.me, etc. All these services can be called directly via curl, suitable for use in shell scripts, CI/CD pipelines, and server initialization. See the code examples section on this page for specific usage.

Why can I ping 127.0.0.1 but can't access the Internet?

Pinging 127.0.0.1 tests whether the local TCP/IP protocol stack is working properly, only indicating that your computer's network components are not damaged - it doesn't mean you can access the external network. Possible reasons for not being able to access the Internet include: 1) Network cable/Wi-Fi not connected or poor signal; 2) Router didn't dial successfully or WAN port failure; 3) DNS configuration errors (can ping IPs but can't open web pages); 4) ISP line failure; 5) Firewall/proxy software interception. You can sequentially ping the gateway (192.168.1.1), ping a public IP (like 8.8.8.8), and ping domain names to troubleshoot segment by segment.

DNS Lookup ToolDNS Health Check

What Is an IP Address?

An IP address (Internet Protocol Address) is a unique numerical identifier assigned to each device connected to the Internet, similar to a physical home address or phone number in real life. It operates at the network layer (Layer 3) of the OSI model, allowing devices to locate and communicate with each other, ensuring data packets are correctly routed and sent to their destinations. Without IP addresses, devices on the Internet would not be able to find each other.

There are currently two main versions of IP addresses in widespread use: **IPv4** and **IPv6**. IPv4 uses a 32-bit address space, formatted as four groups of decimal numbers 0-255 separated by dots (e.g., `192.168.1.1`), with a total of approximately 4.3 billion addresses. Due to the explosive growth of mobile Internet and IoT devices, IPv4 addresses were fully exhausted as early as 2019. **IPv6** uses a 128-bit address space, represented as eight groups of hexadecimal numbers separated by colons (e.g., `2001:0db8:85a3:0000:0000:8a2e:0370:7334`), providing approximately 3.4×10³⁸ addresses, completely solving the address exhaustion problem.

IP addresses are typically divided into two categories: **Public IP** and **Private IP**. A public IP is a globally uniquely routable address on the Internet, assigned by ISPs (Internet Service Providers), and can be directly accessed by other devices on the Internet. Private IPs are addresses used within local area networks (LANs), reserved by IANA specifically for internal networks - they cannot be routed directly on the public Internet and require **NAT** (Network Address Translation) technology to convert private addresses to public IPs before accessing the Internet. Common private IP address ranges include `10.0.0.0/8`, `172.16.0.0/12`, and `192.168.0.0/16`.

This page displays your **public exit IP**, which is the IP address exposed by your device that other servers on the Internet see. If you are using a router, proxy server, VPN, or CDN service, the displayed IP may be the address of these intermediate devices rather than your device's own LAN private address. When you visit a website, this is the public exit IP that the website server sees.

IP addresses can roughly infer a visitor's geographic location, usually accurate to country, province, and city level, along with corresponding ISP information. However, please note: IP geolocation **cannot pinpoint to street, neighborhood, or specific room level**, nor does it directly contain personal identity information such as your name or phone number. IP geolocation information is queried from IP address databases (such as MaxMind GeoIP, IP2Location, etc.), which record registration allocation information for different IP ranges.

In HTTP requests, when passing through reverse proxies (Nginx, HAProxy), CDNs (Cloudflare, CloudFront), or load balancers, the real client IP is passed through specific request headers. The most common ones include: `X-Forwarded-For` (records the entire proxy chain), `X-Real-IP` (commonly used by Nginx), `CF-Connecting-IP` (Cloudflare-specific), `True-Client-IP` (Akamai/Cloudflare Enterprise). This tool automatically parses these headers and displays the complete request chain.

术语表

IPv4
Internet Protocol version 4, using 32-bit address length in dotted-decimal format (e.g., 192.168.1.1), with a total of approximately 4.3 billion addresses. It is currently the most widely used IP protocol version, but addresses are completely exhausted. RFC 791 is the core specification document for IPv4.IPv4 Format ConverterSubnet Calculator
IPv6
Internet Protocol version 6, using 128-bit address length in colon-separated hexadecimal notation (e.g., 2001:db8::1), providing almost unlimited address space (approximately 3.4×10³⁸ addresses). IPv6 is the future direction of the Internet, supporting more efficient routing, built-in IPSec security, better QoS support, and Stateless Address Autoconfiguration (SLAAC).
Public IP
A uniquely routable IP address on the global Internet, assigned by ISPs (Internet Service Providers) to user devices or networks, directly accessible by other servers on the Internet. Public IPs are globally unique, just like your real physical mailing address. This page displays your current public exit IP.IP Geolocation Lookup
Private IP
IP address ranges reserved by IANA for internal LAN use that cannot be routed directly on the public Internet. Private IP addresses can be reused in different LANs. Common private IP ranges include: 10.0.0.0/8 (Class A), 172.16.0.0/12 (Class B), 192.168.0.0/16 (Class C). Home routers typically assign 192.168.x.x addresses to devices.
NAT (Network Address Translation)
Technology that allows multiple devices to share a single public IP address to access the Internet. Home/enterprise routers use NAT to convert internal private IPs to public IPs, solving the IPv4 address shortage problem, but also requiring additional configuration (such as UPnP, port forwarding) for P2P connections, port mapping, and other scenarios.
Loopback Address (localhost)
A special IP address that points to the local machine. In IPv4 it is 127.0.0.1 (the entire 127.0.0.0/8 range is reserved for loopback), and in IPv6 it is ::1. Accessing a loopback address does not send packets to the network - instead, they loop back directly within the local machine, commonly used for local service testing (e.g., accessing http://localhost:3000).
127.0.0.1
IPv4 loopback address, equivalent to localhost, always pointing to your own device. Whether the network is connected or not, ping 127.0.0.1 will always succeed, commonly used to test if the local TCP/IP protocol stack is working properly. If you can't even ping 127.0.0.1, there's a problem with your local network stack.
192.168.1.1
One of the most common private IP addresses, typically the default admin panel address for home routers. Many router brands like TP-Link, Xiaomi, Huawei use this address as the default gateway - users can enter http://192.168.1.1 in a browser to access router settings. Other common default gateways include 192.168.0.1, 192.168.3.1, 10.0.0.1, etc.
ASN (Autonomous System Number)
A unique number assigned by IANA to network operators such as ISPs, large enterprises, and cloud service providers. Each ASN manages one or more IP address ranges and exchanges routing information with other ASes via the BGP protocol. Common ASNs include China Telecom 4134, China Unicom 4837, China Mobile 9800, Cloudflare 13335, Google 15169.IP Geolocation Lookup
X-Forwarded-For
HTTP request header field, formatted as a comma-separated list of IPs, used to record the proxy/load balancer chain an HTTP request passes through. The leftmost IP is typically the original client IP, followed by each layer of proxy IP in order. For example: X-Forwarded-For: 203.0.113.195, 70.41.3.18, 150.172.238.178. It is the standard way to identify the real client IP after passing through proxies.HTTP Headers Checker
CF-Connecting-IP
Cloudflare CDN-specific HTTP request header used to pass the real client IP to the origin server. When a website uses Cloudflare CDN, the connection IP seen by the origin is a Cloudflare edge node IP, while the CF-Connecting-IP header contains the visitor's real IP. Similar headers include X-Real-IP (commonly used by Nginx), True-Client-IP (Akamai/Cloudflare Enterprise).
Subnet Mask
A 32-bit value used to distinguish network bits and host bits in an IP address, e.g., 255.255.255.0. Combining an IP address with a subnet mask can determine whether two IPs are on the same subnet. CIDR notation (e.g., /24) is a shorthand form for subnet masks. This site provides a subnet calculator to quickly compute network addresses, broadcast addresses, usable host ranges, etc.Subnet Calculator
CIDR (Classless Inter-Domain Routing)
A method for IP address allocation and route aggregation, expressed as an IP address followed by a slash and prefix length (e.g., 192.168.1.0/24). The prefix length indicates the number of network bits - /24 corresponds to subnet mask 255.255.255.0, supporting 256 addresses. CIDR replaced the earlier Class A/B/C address classification, allowing more flexible allocation of IP address space.Subnet CalculatorIPv4 Range Expander
Dynamic IP vs Static IP
Dynamic IPs are dynamically assigned by ISPs via DHCP - the IP may change each time you dial-up or restart your router. Most home broadband connections use dynamic IPs. Static IPs are fixed, unchanging IP addresses that usually require additional payment to the ISP, suitable for scenarios like servers providing external services, VPN gateways, and video surveillance.
CGNAT (Carrier-Grade NAT)
Also known as Large-Scale NAT (LSN). Due to IPv4 address exhaustion, ISPs deploy NAT at the carrier level, with multiple users sharing the same public IP exit. The user's router also receives a private IP (usually the 100.64.0.0/10 range, i.e., 100.64.x.x-100.127.x.x). This causes difficulties for P2P, port mapping, remote access, and other scenarios.

IPv4 Private/Special Reserved Address Range Table

The following address ranges are reserved by IANA (Internet Assigned Numbers Authority) and will not be routed on the public Internet, used only for special or internal purposes:

Address TypeStart AddressEnd AddressCIDR NotationAddress CountPurpose
Class A Private10.0.0.010.255.255.25510.0.0.0/816,777,216Large enterprise internal networks
Class B Private172.16.0.0172.31.255.255172.16.0.0/121,048,576Medium enterprise/campus networks
Class C Private192.168.0.0192.168.255.255192.168.0.0/1665,536Home/small office LANs
CGNAT100.64.0.0100.127.255.255100.64.0.0/104,194,304Carrier-grade NAT shared addresses
Link-Local169.254.0.0169.254.255.255169.254.0.0/1665,536Auto-configuration (when DHCP fails)
Loopback127.0.0.0127.255.255.255127.0.0.0/816,777,216Local loopback/localhost
Documentation192.0.2.0192.0.2.255192.0.2.0/24256Documentation/example code only (TEST-NET-1)
Multicast224.0.0.0239.255.255.255224.0.0.0/4268,435,456Class D/multicast
Reserved240.0.0.0255.255.255.255240.0.0.0/4268,435,456Class E/experimental research reserved

Common curl Commands for Public IP Services Comparison Table

The following are common public services for obtaining public IPs from the command line, suitable for use in scripts, CI/CD, and server environments:

Service NameAPI URLOutput FormatIPv6Features
ifconfig.meifconfig.mePlain text/JSON✓Most classic, supports JSON format for detailed information
ipinfo.ioipinfo.ioJSON✓Returns complete information including geolocation/ASN/company
icanhazip.comicanhazip.comPlain text✓Operated by Cloudflare, minimal pure IP output
api.ipify.orgapi.ipify.orgPlain text/JSON✓Open source, supports separate IPv4/IPv6 endpoints
ifconfig.coifconfig.coPlain text/JSON✓Fast, supports multiple format outputs
ident.meident.mePlain text✓Simple, supports traceroute testing

Authoritative References