📍 What Is My IP
See your public IP address, reverse hostname, browser, OS, and proxy headers.
100% Free
No signup
Server-side
No logs / DB
Rate-limited
5 languages
Dark mode
Your IP
18.97.9.172
IPv4
18-97-9-172.crawl.commoncrawl.org
🔍 Details
| Client IP | 18.97.9.172 |
| REMOTE_ADDR | 172.19.0.4 |
| X-Forwarded-For | 18.97.9.172 |
| X-Real-IP | — not set |
| CF-Connecting-IP | — not set |
| Hostname (rDNS) | 18-97-9-172.crawl.commoncrawl.org |
| Browser | Unknown |
| OS | Unknown |
| User-Agent | CCBot/2.0 (https://commoncrawl.org/faq/) |
| Accept-Language | en-US,en;q=0.5 |
| Accept-Encoding | zstd, br, gzip |
| Protocol | HTTP/1.1 |
| TLS | No (HTTP) |
📚 About Proxy Headers
• REMOTE_ADDR: IP of the TCP connection (a proxy IP if behind a proxy)
• X-Forwarded-For: Original client IP added by proxies (comma-separated chain)
• CF-Connecting-IP: Real client IP set by Cloudflare
• X-Forwarded-For from untrusted sources can be spoofed — production code must validate against a trusted proxy list.