What Is My IP Address?
Instantly find your public IP, geolocation, ISP, ASN, timezone, and run WebRTC leak + DNS resolver tests. 100% client-side.
Check which DNS resolver your connection is using. Compare results from multiple providers to detect DNS hijacking.
- What is Client-Side What Is My Ip — Free Online Tool?
- Client-side execution is a zero-knowledge processing model where operations run directly inside your web browser via WebAssembly and JavaScript engines. No files or personal data are ever uploaded to cloud servers, providing 100% data security and 0ms upload latency.
- Why use offline browser processing instead of cloud upload services?
- Offline local processing eliminates file size upload limits, waiting queues, and third-party data collection risks. It is compliant with strict enterprise data security standards including HIPAA, GDPR, and PCI-DSS.
Zero-Knowledge Execution Environment
Unlike cloud-based platforms that upload files to third-party servers, NexaTools operates 100% inside your browser memory via WebAssembly and modern browser APIs. Your data never leaves your device, eliminating data leak risks and guaranteeing absolute confidentiality.
Technical Processing Specifications
| Component | NexaTools (Client-Side) | Legacy Cloud Services |
|---|---|---|
| Processing Boundary | 100% In-Browser (Client-Side) | Remote Cloud Server |
| Data Transmission Risk | Zero (0 bytes transmitted) | High (HTTP POST over WAN) |
| Latency | Instant (no upload wait) | Dependent on upload speed |
| Software Installation | None (browser only) | App or plugin required |
Network Addressing, Routing & WebRTC STUN Mechanics
An Internet Protocol (IP) address serves as the fundamental logical identifier for host routing across the global Internet. While standard web requests simply inspect HTTP connection metadata, NexaTools What Is My IP executes a multifaceted, client-side diagnostic suite that uncovers public routing endpoints, autonomous system numbers (ASN), geolocation boundaries, and local network adapter addresses via WebRTC ICE candidate discovery.
Under the Web Real-Time Communication (WebRTC) protocol (RFC 8829), browsers initiate peer-to-peer media sessions by querying Session Traversal Utilities for NAT (STUN) servers (RFC 5389). This process gathers Interactive Connectivity Establishment (ICE) candidate pairs. By examining these candidate SDP payloads locally in JavaScript, our diagnostic tool reveals whether your browser inadvertently leaks your true private LAN address or VPN bypass tunnel.
IPv4 vs. IPv6 Dual-Stack Resolution
Detects whether your Internet Service Provider (ISP) supports modern 128-bit IPv6 addressing alongside legacy 32-bit IPv4, evaluating dual-stack routing health and latency parity.
Autonomous System (ASN) & BGP Routing
Identifies your upstream network carrier, transit Autonomous System Number (ASN), and organization name responsible for Border Gateway Protocol (BGP) routing announcements.
WebRTC Leak Vulnerability Assessment
Audits whether commercial VPNs or proxy extensions fail to mask local network interface addresses (e.g., 192.168.x.x or 10.x.x.x), identifying potential deanonymization vectors.
Geo-IP Precision & DNS Drift
Cross-references IP geolocation data against regional Internet registries (RIRs) including ARIN, RIPE NCC, and APNIC to verify approximate city, region, and ISP boundaries.
Network Privacy, CGNAT & Diagnostic Troubleshooting
Many modern mobile broadband and fiber optic networks employ Carrier-Grade NAT (CGNAT / RFC 6598, using the `100.64.0.0/10` shared address block). In a CGNAT topology, thousands of distinct residential subscribers share a single public IPv4 address, which can cause unexpected IP ban overlaps, port forwarding failures, and geo-targeting errors.
NexaTools What Is My IP enables network engineers, remote workers, and gamers to quickly troubleshoot routing discrepancies, verify corporate VPN tunnel integrity, and confirm that privacy proxies are routing traffic as intended without storing tracking cookies or selling connection histories.
IPv6 Privacy Extensions & Ephemeral SLAAC Identifiers
In early implementations of IPv6 Stateless Address Autoconfiguration (SLAAC / RFC 2462), a host generated its 64-bit Interface Identifier (IID) directly from the device's physical Network Interface Card (NIC) MAC address using the Modified EUI-64 format. While technically elegant, this introduced an enormous global privacy tracking vulnerability: because a device's MAC address is hardware-burned and globally unique, third-party web trackers could track a laptop across every WiFi network in the world regardless of changing network prefixes.
To eliminate this tracking vector, the IETF published RFC 4941 (IPv6 Privacy Extensions). Modern operating systems (Windows 10/11, macOS, Linux, iOS, Android) now generate randomized, temporary IPv6 interface identifiers that change automatically every few hours or days for outgoing outbound connections.
NexaTools What Is My IP analyzes your active outbound IPv6 connection, allowing users to verify whether their operating system is successfully utilizing temporary privacy addresses rather than leaking persistent hardware-derived identifiers across the public Internet.
What Is My IP Address? — How It Works
Instantly find your public IP address, geolocation, ISP, ASN, timezone, and network details. Free client-side IP lookup tool with WebRTC leak detection. All processing runs locally in your browser — no uploads, no account required, no size limits imposed by NexaTools.
How to Use What Is My Ip
Open the tool in your browser, provide the required input, and the result is generated instantly on your device. No internet connection is required once the page has loaded.
Privacy and Security
No data is ever transmitted to NexaTools servers. The tool runs entirely within your browser's sandboxed environment, making it safe for confidential, financial, and legal content.
Browser Compatibility
Fully supported in Chrome, Firefox, Edge, and Safari. No plugins required. Works on desktop and mobile.