About
Looks up public forward or reverse resolution for a hostname or IP.
How to use
Enter a hostname or IP, such as example.com or a public address.
What this tool checks
How hostname and IP correspond on the public DNS/resolution path.
How to read the results
One host may map to many IPs, especially on a CDN. Reverse DNS may not exist.
Limits and data handling
Public resolution from the server. Do not enumerate addresses you are not allowed to probe.
FAQ
Can it show geolocation?
This tool focuses on resolution, not commercial-grade geolocation.
Can I look up private IPs?
A public probe cannot see your LAN hosts. Results will fail or be meaningless.
How is this different from Current Public IP?
Current Public IP shows your current egress. This tool looks up the host or IP you type.
Related tools
- Network and domain tools
- Domain DNS Record Lookup
Look up A / AAAA / CNAME / MX / TXT / NS.
- Current Public IP
Show the public IP seen when your browser visits this site.
- Public TCP Port Probe
Check whether a port is open on a public host.
- HTTP Response Header View
View HTTP response headers for a URL.
- SSL Certificate Info
View the subject, issuer, and validity of an HTTPS host certificate.