A domain has a number of records associated with it, and a DNS server can be queried to determine the IP address of the primary domain (A record), mail servers (MX records), DNS servers (NS nameservers) and other items, such as SPF records (TXT records). This is a REST API that performs DNS queries via simple HTTP requests, returning your results as JSON/XML-encoded objects.Get started
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Displays the DNS information critical for identifying who is hosting a particular domain name or website.
Determines the Mail Servers for Particular Domain. Use this API to find out what server(s) accept email for a specific domain by doing an MX record lookup.
Determines the IP address of the primary domain (A record), mail servers (MX records), DNS servers (name servers) and other items such as SPF records (TXT records).
Determines the SPF record for a domain by looking up its TXT record to see if the domain tries to restrict who can send email using the domains.
Even more violent than spam is the dreaded DDoS attack, which is basically a security attack on your web site from dozens or even hundreds of IP address simultaneously. If you suddenly noticean unusual amount of traffic, then you may want to conduct areverse DNS lookup and get to the root of it before it becomes a problem, especially if the traffic is originating from a group of similar IP addresses.
Prevent spam attacks from aparticular web server or IP address. When your site is attacked by spam repeatedly, obtain the IP address(es) of the attackers and then use a reverse DNS lookup tool to obtain site registration informationof that IP address.
Security penetration testers and researchers will use information collected from DNS to expand their knowledge of an organization’s information technology infrastructure and from that knowledge begin to understand the attack surface.
Define website category of the given domain.Learn more
Find connections between various domains, individuals and organizations.Learn more
Get data feeds of new registered domains along with their WHOIS data generated in real time.Learn more
Reveal all the domains that use the same mail server.Learn more
Find relations like ownership between hostnames and IPs.Learn more
Monitor exact matches, variations and common misspellings of your brand name & trademarks.Learn more
Find out the exact physical location of any IP address, email or domain name.Learn more
Ensure the validity and quality of any email address.Learn more
Identify who is hosting a particular domain name or website.Learn more
Keep track of the best business opportunities online.Learn more
Instantly get a screenshot of any web page.Learn more
Enhance your domain research toolkit by our enterprise-grade web-based solution that helps you in searching...Learn more
Get access to the biggest US Internet Retailers Database.Learn more
Find all domains that use the same name server.Learn more
Get well-parsed and normalized WHOIS information for any domain name, IP address or email.Learn more
Get a complete daily list of all the registered domains and zone files.Learn more
Find out which IP range the particular IP belongs to.Learn more
Find out which domains were added or dropped by registrants, with given search criteria.Learn more
We provide complete and relevant domain WHOIS data which can be customized and easily integrated as per your business needs.Learn more
Get full contacts data of the given domain.Learn more
Assess the domain's or IP addresses reputation and risk profile with a simple score based on a comprehensive...Learn more
Get the most relevant data to be ahead of emerging security threats.Learn more
The most accurate domain availability checker offered on the market.Learn more
Easily detect all typosquatting domain names as soon as they are registered each day.Learn more
API access through WhoisXMLAPI can be purchased as an annual subscription. The access pricing is based on the number of queries, which is measured monthly with per-minute rate limits. The pricing structure gives predictability to business planning and solution architecture.Learn more
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