whois.b1s4.xyz
whois is a developer resource for coding, documentation, communities, security research, or software tools.
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whois.com
Whois is a developer resource for coding, documentation, communities, security research, or software tools.
github.com
Whois is a GitHub repository or organization with source code, releases, documentation, or project resources.
osint.sh
OSINT.sh tool for checking historical WHOIS records and domain ownership changes.
webwhois.verisign.com
Verisign WHOIS lookup for checking domain registration records and registry information.
osint.sh
Reverse WHOIS lookup for finding domains connected to the same registrant, email, or ownership details.
website.informer.com
Website.informer offers a free aggregated report on any domain, including WHOIS, visitors, IP and DNS details, competitors, and owners. It provides website statistics such as daily visitors, safety status, and global rank, plus competitor and similar-site research. It also offers IP and DNS lookup, WHOIS records, a browser extension for website analysis and security checks, and email-to-domain matching from WHOIS data.
who.is
Who.is is a domain and IP information lookup service. It offers WHOIS and RDAP lookups, DNS records, nameserver lookup, IP address lookup, domain history and uptime checks. Premium offerings include downloadable domain history reports, website monitoring for up to 10 domains and API access providing parsed WHOIS, RDAP, DNS and TLS certificate data as JSON over HTTPS, with a free tier.
whoishiring.io
whoishiring is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.
whoisrequest.com
WhoisRequest is a developer resource for coding, documentation, communities, security research, or software tools.
whoxy.com
Whoxy is a hosted web service that returns parsed WHOIS fields to applications in XML or JSON format over HTTP requests. It follows WHOIS registry referral chains to find the correct servers, and supports 2026 domain extensions including gTLDs and ccTLDs. The page notes a free account signup and query pricing by volume.
kriztalz.sh
Domain Recon Tool is a free online tool for security researchers and analysts that retrieves DNS records, WHOIS and RDAP data, SSL certificates, IP addresses and subdomains for a domain or URL. It supports complete DNS record analysis and WHOIS registration data retrieval.
easywhois.com
Easy whois is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
whois-webform.markmonitor.com
Mark Monitor WHOIS is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
osint.sh
OSINT.SH is a collection of information gathering tools. It lists tools for finding public cloud buckets, subdomains, DNS history, reverse IP lookups, technology detection, certificate searches, DNS lookups, reverse Google Analytics and AdSense IDs, WHOIS history, reverse WHOIS, reverse domain searches, OCR text extraction, MD5 hash guessing, SSL checking, IP geolocation, and reverse MX and name server records.
securitytrails.com
API to search current and historical DNS records, current and historical WHOIS, technologies used by sites and whois search for phone, email, address,
one-plus.github.io
OSINT Toolkit Website Information is a collection of tools for researching websites, IP addresses, domains, emails and MAC addresses. It lists lookups including Ping Website, Whois, reverse Whois, network and TLD lookup, IP history and geolocation, MAC vendor lookup, DNS report and header and source code search. The page states that some tools require the IP address, email address, domain name or MAC address of the target.
whois.arin.net
is a web service for Whois data contained within ARIN's registration database
whoishostingthis.com
WhoIsHostingThis is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
whoismind.com
WhoIsMind offers a free IP address lookup tool that reports an IP address's location, ISP, ASN and domain information. The site also explains reverse IP lookups, which return the hostname or domain associated with an IP address via PTR records, and discusses public, private, static and dynamic IP address types.
whoisology.com
Whoisology is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
domainbigdata.com
Domain intelligence tool for researching WHOIS data, ownership patterns, and connected domains.
github.com
Awesome CSEs is a public GitHub repository that hosts a list of custom browser search engine configurations and shortcuts. It is designed to improve daily workflow by replacing Chrome's default long, hard-to-trigger custom search engine keywords with short, memorable alternatives. The list includes provided shortcuts for services including Gmail, GitHub, Amazon, Airbnb, reference sites, and specialized tools like filming location and whois lookups, reducing the number of keystrokes needed to access targeted search results directly.
check-host.net
Check-Host.net is an online tool for checking the availability of websites, servers, hosts and IP addresses. It offers domain and IP location data from geolocation databases and whois, ping to measure latency and packet loss from servers worldwide, HTTP response checks, DNS record retrieval, TCP and UDP port checks, a subnet calculator, a live server terminal for diagnostics, and API documentation for building monitoring solutions.