IP Viewer Online: Free IP Lookup, Reverse DNS & WHOIS
What it does
- IP lookup: Shows public IPv4/IPv6 address, ISP, approximate geolocation (city, region, country), and timezone.
- Reverse DNS: Resolves an IP to its PTR/hostname when available.
- WHOIS: Retrieves domain or IP allocation records (registrant, registrar, creation/expiration dates where applicable).
- Additional data: ASN (Autonomous System Number), network range (CIDR), and basic abuse/contact info.
Common use cases
- Troubleshooting network connectivity and routing.
- Identifying source IPs in logs or server access.
- Verifying domain ownership and registration details.
- Basic security checks and incident triage (spotting unexpected geolocations or ASNs).
Typical limitations
- Geolocation precision: Usually accurate to city/region level but can be incorrect or show the ISP’s center instead of exact user location.
- Privacy & anonymity: Results reflect public-record and third-party database info; they do not reveal personally identifiable details beyond what registries provide.
- Rate limits / accuracy: Free services may limit queries and use cached/third-party datasets that lag behind registry updates.
How to use it (quick steps)
- Enter an IP address or domain into the search field.
- View the summary: IP, hostname, ISP, ASN, country/city, timezone.
- Open WHOIS for registration details and reverse DNS for hostname resolution.
- Optionally copy CIDR/ASN to run further network tools (traceroute, ping, blacklist checks).
Output example
- IP: 203.0.113.45
- Hostname: host.example.net
- ASN: AS12345 (ExampleISP)
- Location: Austin, Texas, USA
- WHOIS: Registrar — ExampleReg; Created — 2012-05-10; Updated — 2024-03-01
Privacy & responsible use
- Use only for lawful, ethical purposes. Do not attempt to deanonymize individuals or perform targeted harassment.
If you want, I can draft web copy or UI text for this tool (homepage blurb, feature list, or FAQs).
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