OneDollarTools

IP Identifier

Show your public IP with reverse DNS in seconds.

Remaining today: unlimited
About this tool

What this tool does

Shows your current public IP and, when available, the reverse DNS (PTR) associated with it.

How it works

The page detects your IP on load and resolves reverse DNS on the server. You can refresh anytime.

When to use

  • Confirm your public IP before whitelisting it in firewalls.
  • Check the IP when using VPN, mobile, or corporate networks.
  • Validate whether reverse DNS is configured.

When to avoid

  • When you need the internal/private IP of your local network.
  • If the network blocks external DNS lookups.
  • For continuous monitoring of IP changes.

Examples

  • Whitelist: copy the IP and paste it into the access panel.
  • Email/server: verify if a PTR record exists.

Quick recommendations

  • Refresh after switching networks or enabling a VPN.
  • If reverse DNS does not appear, check with your ISP.
  • Be cautious on shared networks.

Limitations

  • Reverse DNS may not exist or may time out.
  • The IP shown is the public IP detected by the server.
  • Proxies and CDNs can change the perceived IP.

Privacy / where data is processed

Sent
No extra content; only the request and the detected IP.
Retention
We do not store the IP as content. Technical logs may retain it temporarily.
Processing
On the server.
Logs
IP, timestamps, and status for security.

FAQ

Why is reverse DNS empty?
Not every IP has a PTR record configured.
My IP is different than expected. Why?
VPNs, proxies, or your ISP can change the public IP.
Does it show IPv6?
Yes, when your connection exposes IPv6 to the server.

Links