DNS Lookup

Intercept system DNS requests on Windows and configure resolvers with YogaDNS.

DNSlytics provides reverse IP, NS, MX, WHOIS, and domain lookup tools.

IANA Root Zone Database lists delegation details for top-level domains in the DNS root.

IANA manages DNS root zone assignments and other internet numbering and protocol registries.

APNIC administers internet number resources for the Asia Pacific region.

wtfis gathers passive hostname, domain, and IP information from public sources.

Configure DNS over HTTPS or DNS over TLS on iOS, iPadOS, and macOS with DNSecure.

DNS Watch looks up DNS records and measures lookup performance across resolvers.

AFRINIC allocates and manages IP addresses and autonomous system numbers for Africa.

Set up DNS-based URL redirects with redirect.name using DNS records, without a server or dashboard.

SubDomainizer searches web pages, folders, and JavaScript files for subdomains and related information.

ARIN administers IP addresses and autonomous system numbers for internet operations in its region.

Look up DNS records and nameservers with NSLookup.io’s network utilities.

Check domain registration details and availability with Whois.com, which also sells domain names and hosting.

Find subdomains and certificates linked to a website with Merklemap search and enumeration tools.

IPVoid provides IP, network, and DNS utilities, including blacklist checks, WHOIS lookups, and ping tools.

DomainTools provides WHOIS lookups, domain availability searches, IP history, traffic data, and other domain research information.

Domain Digger looks up DNS, WHOIS, IP data, SSL history, and subdomains for a domain.

Verisign Whois Search provides information about domain name registrations, including .com and .net records.

GreyNoise Intelligence analyzes untargeted internet scanning and provides context about IP addresses seen probing networks.

Look up DNS records and RDAP domain information with whois_, which supports common record types and network entities.

LACNIC manages IP addresses and autonomous system numbers for Latin America and the Caribbean.

PyFunceble checks whether domains, IP addresses, and URLs are available or syntactically valid.

LeakIX searches exposed internet services and databases by query terms such as ports, protocols, and IP addresses.