A complete DNS records lookup product line to check the NS, MX, SPF, A, SOA, TXT, etc. record of a domain

Our DNS lookup product line includes an API, lookup tool, and downloadable database to get immediate access to critical DNS server information for a given domain name (i.e., NS, MX, SPF, A, SOA, TXT, and more records).

Get started

500 free API requests. No credit card required.

50 Billion+Domains and subdomains
116 Billion+DNS records
52,000+Satisfied customers
15+Years of data crawling

Our DNS records lookup products include:

Lookup

Just take a domain name and get the Domain Name System (DNS) information to identify who is hosting a particular domain name or website.

DNS Lookup | WhoisXML API
DNS Lookup API | WhoisXML API

API

We also give access to our DNS intelligence with a RESTful API. Results are available in JSON or XML formats obtainable via HTTP requests. Our outputs are properly parsed to facilitate integration with other commercial platforms or internal applications.

DNS Database Download

Our DNS intelligence is also available in an all-inclusive database with billions of DNS records for greater integration possibilities.

DNS Database Download | WhoisXML API

Why conduct a DNS lookup query for NS, MX, SPF, A, SOA, TXT, and more records with our product line:

  • Gather DNS intelligence in a way that works best for you and your organization. Lookups are straightforward with a shareable report, while our API and database are built for easy integration and custom use.

  • From a queried domain name, you can determine its IP address/A record, mail servers/MX records, nameservers/NS records, SPF/TXT records, and many other DNS records.

  • Map entire connected domain footprints by combining our DNS lookup services with reverse IP, reverse MX, and reverse NS queries.

Practical usage

Understand Your DNS Configurations

Use DNS data to expand your knowledge of your web properties. Dangling DNS records and related misconfigurations and settings can lead to vulnerability exploitation. Identifying all your Internet-accessible records is the first step toward seeing the big picture.

Monitor Third Parties

Monitor the configurations and potential anomalies in third-party suppliers’ or partners’ DNS records. Misconfigured, forgotten or unused records can put your users and network at risk if not addressed.

DNS Lookup Services | WhoisXML API

Get 500 free API credits. No credit card required.

Get started

Trusted by
the smartest
companies

You may be interested

Domain Research Suite
Domain Research Suite

Enhance your domain research toolkit by our enterprise-grade web-based solution that helps you in searching...

Learn more
Newly Created Websites Data Feed
Newly Created Websites Data Feed

Get insights for the new business registered on the web.

Learn more
WHOIS Search
WHOIS Search

Get well-parsed and normalized WHOIS information for any domain name, IP address or email.

Learn more
Email Verification
Email Verification

Ensure the validity and quality of any email address.

Learn more
SSL Certificates Database
SSL Certificates Database

Get the most comprehensive database of SSL (Secure Sockets Layer) Certificates.

Learn more
IP Netblocks
IP Netblocks

Find out which IP range the particular IP belongs to.

Learn more
Screenshot Service
Screenshot Service

Instantly get a screenshot of any web page.

Learn more
Domain Registration Streaming
Domain Registration Streaming

Get data feeds of new registered domains along with their WHOIS data generated in real time.

Learn more
DNS Lookup Services
DNS Lookup Services

Identify who is hosting a particular domain name or website.

Learn more
Typosquatting Data Feed
Typosquatting Data Feed

Easily detect all typosquatting domain names as soon as they are registered each day.

Learn more
Threat Intelligence Data Feeds
Threat Intelligence Data Feeds

Get the most relevant data to be ahead of emerging security threats.

Learn more
Domains & Subdomains Discovery API
Domains & Subdomains Discovery API

Find domains and subdomains related by specific terms in their hostnames.

Learn more
MAC Address Vendor Database
MAC Address Vendor Database

Get the most comprehensive database of registered MAC address blocks, also referred to as OUIs (Organizationally Unique Identifiers).

Learn more
Brand Alert
Brand Alert

Monitor exact matches, variations and common misspellings of your brand name & trademarks.

Learn more
Reverse IP
Reverse IP

Find relations like ownership between hostnames and IPs.

Learn more
Domain Reputation API
Domain Reputation API

Assess the domain's or IP addresses reputation and risk profile with a simple score based on a comprehensive...

Learn more
IP Geolocation
IP Geolocation

Find out the exact physical location of any IP address, email or domain name.

Learn more
Website Categorization
Website Categorization

Define website category of the given domain.

Learn more
Reverse DNS
Reverse DNS

Give the list of domain names tied to the specified DNS records via API calls with outputs in JSON and XML.

Learn more
Threat Intelligence API
Threat Intelligence API

Easily identify malicious resources and retrieve their threat information.

Learn more
Newly Registered Domains
Newly Registered Domains

Keep track of the best business opportunities online.

Learn more
SSL Certificates API
SSL Certificates API

Check a domain’s SSL certificate chain via API calls.

Learn more
Domain Availability
Domain Availability

The most accurate domain availability checker offered on the market.

Learn more
Reverse WHOIS
Reverse WHOIS

Find connections between various domains, individuals and organizations.

Learn more
MAC Address API
MAC Address API

Get vendor information, detect virtual machines, manufacturer, location, read the information encoded in the MAC address.

Learn more
WHOIS Database Download
WHOIS Database Download

We provide complete and relevant domain WHOIS data which can be customized and easily integrated as per your business needs.

Learn more
Subdomains Lookup
Subdomains Lookup

Discover subdomains related to the target domain name.

Learn more
Registrant Alert
Registrant Alert

Find out which domains were added or dropped by registrants, with given search criteria.

Learn more
Real-time SSL Certificates Streaming
Real-time SSL Certificates Streaming

Get data feeds of SSL certificates along with their well parsed fields in real time. Accurate. Up-to-date.

Learn more
Reverse MX
Reverse MX

Reveal all the domains that use the same mail server.

Learn more
Reverse NS
Reverse NS

Find all domains that use the same name server.

Learn more