WHOIS and IP Routing Lookup

Free online WHOIS and IP Routing Lookup that runs directly in your browser.

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Client-Side Processing

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Instructions

1

Enter data
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2

Click the button
The tool will immediately process your data in the browser.
3

Get the result
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                                                function runTool() {

                                                  return "Result ready in 0.1s";

                                                }

Settings

Input data

7 characters

Include routing Tool Option

Include extra Tool Option

Result

input: 8.8.8.8 type: ip normalized: 8.8.8.8 report: WHOIS IP Routing Lookup Report Generated: 2026-08-30 22:58:17 UTC Input: 8.8.8.8 Detected type: IP ------------------------------------------------------------ Notes: - Routing data could not be retrieved from the routing endpoint. ------------------------------------------------------------ RDAP (Registry) Summary Source: https://rdap.arin.net/registry/ip/8.8.8.8 Handle: NET-8-8-8-0-2 Name: GOGL IP Version: v4 Range: 8.8.8.0 - 8.8.8.255 Parent handle: NET-8-0-0-0-0 ------------------------------------------------------------ End of report.

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Related tools

Other tools you may find useful

WHOIS and IP routing – domain and IP address information

WHOIS is a protocol for querying Internet domain registration information. WHOIS information includes: registrar, registrar, registration and expiration dates, DNS servers. IP routing (BGP) reveals the country, ASN (Autonomous System Number) and ISP of the owner of the address.

WHOIS domain check domain owner WHOIS information IP location ASN

What is WHOIS

WHOIS: TCP protocol port 43. Query: whois domain.pl. Answer: registrant (owner), admin contact, tech contact, registrar (registrar), creation/expiration date, name servers. Privacy protection: WHOIS Guard/Domain Privacy masks owner data. GDPR 2018: ICANN changed the rules - data of natural persons is hidden.

WHOIS information of the domain

Registrar: the company with which the domain is registered (e.g. OVH, Cloudflare Registrar). Registered: date of first registration. Updated: last change. Expires: expiration date. Name Servers: DNS domain servers. Status: addPeriod, clientTransferProhibited, etc. DNSSEC: whether signed. Registry: responsible for the TLD (NASK for .pl).

IP Routing and ASN

BGP (Border Gateway Protocol): Internet routing protocol. ASN (Autonomous System Number): a unique network number. E.g. Google: AS15169. ISP: internet provider. GeoIP: Approximate location based on IP (not always accurate!). ARIN/RIPE/APNIC: Regional IP Registries (RIRs). Check ASN: bgp.he.net, ipinfo.io.

WHOIS and IP lookup tools

WHOIS: whois.domaintools.com, who.is, NASK.pl (for .pl). IP: ipinfo.io, ipgeolocation.io, abuseipdb.com (blacklist). BGP: bgp.he.net, route-views.org. DNS: dig, nslookup, MXToolbox. RDAP: new standard, replaces WHOIS (JSON format). Linux command: whois domaina.pl, dig +short domaina.pl A.

Frequently asked questions

How to check if a domain is free?

WHOIS: no entry = free. Registrar (OVH, Cloudflare, nazwa.pl): accessibility search engine. Alternative TLDs: .com taken, check .io, .net, .co, .pl. Domainr.com: Checks hundreds of TLDs at once. Expiring domains: deletedbydaylight.com or snapnames.com for valuable expiring domains.

How to protect your data in WHOIS?

GDPR (EU): the registrar must hide the data of natural persons. Domain Privacy/WHOIS Guard: Typically a free service (e.g. Cloudflare Registrar). Tips: Use a domain email address (not a private one). Provide only the required data. Check what you see: whois your-domain.pl.

What is Domain Squatting and how to check?

Domain squatting (cybersquatting): registering a domain similar to a brand for profit/sales. UDRP: ICANN domain recovery procedure (for brands). Check: WHOIS of similar domains, history by DomainHistory. Trademark: register a trademark → legal basis for claims. NASK: procedure for .pl.

How to check if an IP is blacklisted?

MXToolbox Blacklist Check: mxtoolbox.com/blacklists.aspx. AbuseIPDB: abuseipdb.com. Spamhaus: spamhaus.org. Barracuda: barracudacentral.org. Check: if your server sends email and ends up in spam - check the IP on blacklists. Delisting: each blacklist has a delisting process (requires explanation of the reason).

What is the difference between WHOIS and RDAP?

WHOIS: old protocol (1982), plain text, port 43. RDAP (Registration Data Access Protocol): new (2015), JSON format, HTTPS, pagination, structured data. ICANN mandates migration to RDAP. Tools: rdap.org, rdap.arin.net. Compatibility: Most recorders support both.

Related tools: DNS record checker, domain availability checker and SPF tester.