About WhatsMyIPv4

WhatsMyIPv4 is a free internet diagnostics and network troubleshooting toolkit. Whether you want to know your IP address, test your connection speed, confirm your VPN is working, or debug a DNS issue, you can do it here in seconds. No sign-up, no app.

What we offer

• IP tools: your public IPv4 & IPv6, geolocation, ISP/ASN and router IP.
• Network tools: internet speed test and a subnet / CIDR calculator.
• Privacy tools: VPN/proxy detection and a WebRTC IP leak test.
• Browser tools: what your browser reveals and full user-agent details.
• DNS tools: DNS, reverse DNS, MX, SPF and DMARC lookups.

Why we built it

Most "what is my IP" sites stop at a single number. We wanted a place that actually helps you solve internet problems. We measure what's happening, explain what the numbers mean, and point you to the next useful tool or guide. Every result comes with plain-English context so you learn something, not just look something up.

How it works

Our tools run in your browser wherever possible (for speed and privacy) and use trusted infrastructure, such as Cloudflare for speed testing and public DNS-over-HTTPS resolvers for DNS lookups. We don't require accounts and we don't store your raw IP address in our analytics. See our Privacy Policy for details.

Get started

Head to the home page to see your IP and connection overview, run a speed test, or browse the full toolkit in the footer below.