What Is My IP Address?

Internet Speed Test

Measure your real download & upload speed via the nearest Cloudflare edge. No Flash, no app.

AI Agent Readiness Checker

Test any site for agentic browsing readiness — llms.txt, AI crawler access, structured data and WebMCP.

What LLM Can I Run?

Instantly see which local AI models your computer can handle — GPU, RAM and WebGPU checked right in your browser.

Browser Fingerprint

See how uniquely identifiable your browser is to trackers — 18 signals, 100% client-side.

WebRTC Leak Test

Check if your real IP is exposed through WebRTC — the most common VPN bypass vulnerability.

DNS Leak Test

Find out if your DNS queries are encrypted or visible to your ISP and network administrator.

SSL Certificate Checker

Check any domain's SSL certificate: expiry date, issuer, HSTS, redirect, and security grade (A+ to F).

DNS Lookup

Check A, AAAA, MX, TXT, NS and CNAME records for any domain.

Port Scanner

Check if any TCP port is open on your public IP. Custom port input + 12 common ports. Instant.

HTTP Headers

See the exact request headers your browser sends to sites.

Browser Info

See your browser, OS, engine, screen, hardware, and user agent — all in one place.

Subnet Calculator

Network, broadcast, host range, netmask and wildcard from CIDR.