What this tool checks
- A and AAAA records for hostnames
- Reverse DNS for IP addresses
- Public IP validation
DNS and Domain Tools
IP Lookup
Resolve domains to public IP addresses or check reverse DNS for an IP.
Run the check
Enter a public target. Checks are a point-in-time sample; private and internal addresses are blocked.
Why it matters
IP lookup confirms what infrastructure a hostname points to.
Plain-English examples
- Find IPv4 and IPv6 addresses for a website
Recommended fixes
- Avoid pointing public DNS at private IP ranges
- Add reverse DNS for mail servers
Understanding the result
Use findings as a starting point, confirm the intended configuration with your provider, and retest after a change. A successful check does not guarantee security, delivery, uptime or search rankings. Results depend on public DNS and what the server exposes at the time of the check.
Related tools
Run these checks next for a fuller picture.
WHOIS / RDAP Lookup
Look up public registration data, domain status, important dates and nameservers.
Run check
DNS Lookup
Query public DNS records for a domain and explain what is present or missing.
Run checkDNS Propagation Checker
Compare answers from Cloudflare, Google and Quad9 resolvers.
Run checkReverse DNS Checker
Check PTR records and reverse DNS guidance for public IPs.
Run checkNeed help fixing the result?
