Check which domains link back to a mail server via API calls to avoid hosts with a dubious reputation, improve email delivery, and other purposes.Get started
100 free credits monthly. No credit card required.
A reverse MX API is a way to check if several domains can be found on a specified mail server through API calls. This information can help verify if a mail server is dedicated or shared across multiple hosts for cybersecurity and marketing ends.
We provide results pulled from the world’s largest and constantly updated DNS database with information on 1,4B+ domains and subdomains, 142,703,533 MX records updated daily.
Reverse MX API is a fast and easy-to-use API for quick access to domains with a shared mail server. All the results are duly parsed and normalized to a consistent format such as JSON and XML for easy integration into your business processes.
Prevent your mail server from being blacklisted and avoid harm to your email deliverability. Use Reverse MX API to identify bad hosts that may be involved in spamming, phishing, and other malicious activities.
Find all domains that use the same name server.Learn more
Monitor exact matches, variations and common misspellings of your brand name & trademarks.Learn more
Easily detect all typosquatting domain names as soon as they are registered each day.Learn more
Find out which domains were added or dropped by registrants, with given search criteria.Learn more
Get insights for the new business registered on the web.Learn more
Get access to the biggest US Internet Retailers Database.Learn more
Find out which IP range the particular IP belongs to.Learn more
Keep track of the best business opportunities online.Learn more
Get full contacts data of the given domain.Learn more
Instantly get a screenshot of any web page.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
Define website category of the given domain.Learn more
Get a complete daily list of all the registered domains and zone files.Learn more
Identify who is hosting a particular domain name or website.Learn more
Assess the domain's or IP addresses reputation and risk profile with a simple score based on a comprehensive...Learn more
Discover subdomains related to the target domain name.Learn more
Get well-parsed and normalized WHOIS information for any domain name, IP address or email.Learn more
Ensure the validity and quality of any email address.Learn more
Reveal all the domains that use the same mail server.Learn more
The most accurate domain availability checker offered on the market.Learn more
Enhance your domain research toolkit by our enterprise-grade web-based solution that helps you in searching...Learn more
Find relations like ownership between hostnames and IPs.Learn more
Find out the exact physical location of any IP address, email or domain name.Learn more
Get the most relevant data to be ahead of emerging security threats.Learn more
We provide complete and relevant domain WHOIS data which can be customized and easily integrated as per your business needs.Learn more
Find domains and subdomains related by specific terms in their hostnames.Learn more
Reverse MX API is available together with reverse NS, IP, and other domain intelligence APIs as part of an annual enterprise subscription with predictable pricing.Learn more