Free Domain Tools
Everything you need to research, analyze, and troubleshoot domain names — completely free, no sign-up required. All tools use real-time data.
Bulk Domain Availability Checker
Paste up to 100 domains and check availability, registrar, dates, and the cheapest registration price per TLD — all in one batch. Powered by RDAP.
Bulk WHOIS, batch domain check, domain availability, multiple domains
WHOIS Lookup
Find domain registration details including registrar, creation date, expiry, name servers, and ownership information. Uses real-time RDAP data.
Domain owner, registrar, expiration date, name servers
DNS Lookup
Check DNS records for any domain. View A, AAAA, MX, TXT, NS, CNAME, and SOA records with TTL values. Powered by Cloudflare DNS.
DNS records, A record, MX record, name servers, TTL
Domain Age Checker
Find out exactly how old any domain is. See the original registration date, last update, and expiration. Useful for SEO analysis and domain valuation.
Domain age, registration date, SEO authority, domain history
SSL Certificate Checker
Verify SSL/TLS certificate details for any website. Check issuer, validity dates, encryption strength, and Subject Alternative Names.
SSL certificate, HTTPS, TLS, encryption, certificate authority
IP Address Lookup
Look up any IP address or domain to find its geolocation, ISP, organization, AS number, and timezone. Accepts both IP addresses and domain names.
IP geolocation, ISP lookup, AS number, reverse DNS
About Our Tools
All tools on DomainNameServices.net query live data sources in real time. DNS lookups use Cloudflare's DNS-over-HTTPS infrastructure. WHOIS data comes from RDAP (Registration Data Access Protocol) — the modern, standardized replacement for traditional WHOIS. SSL checks verify actual certificates, and IP lookups use geolocation databases updated daily.
Results are cached briefly at the edge (5 minutes for DNS, 1 hour for WHOIS and SSL, 24 hours for IP geolocation) to ensure fast response times. All tools are free to use. Excessive automated queries may be rate-limited by upstream data providers.