Brand Alert | WhoisXML API

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

Search across all recently registered & deleted domain names and get sets of domain names that contain term(s) that are specified by you.

Get started

500 free API requests. No credit card required.

774 Million+Domains tracked
16.7 Billion+WHOIS records
7,596+TLDs and ccTLDs tracked
52,000+Satisfied customers

Brand Alert product line includes


Fast check all the newly registered and recently expired domains that contain term(s) that are specified by you so as to protect your brand online.

Brand Alert Lookup | WhoisXML API
Brand Alert API | WhoisXML API


The API is ideal for Brand Protection Agents to monitor registrations that contain a trademarked word or product phrase, or which may contain minor variations to a firm’s brand.


  • If a newly registered or dropped (on-hold, deleted) domain name contains any of the search terms, then it will be returned in the search result.

  • By default, the result contains all the domain names registered or dropped within the last day. Your program can actively monitor each set of terms by automatically submitting a single query each day.

  • You can monitor for domain registration, expiration or ownership change. You have the option to exclude terms if they should not be a part of the search.

  • You can backtrack the alerts up to 14 days by setting sinceDate request parameter.

  • The Brand Alert API searches new .com, .net, .org, .biz, .mobi, .us, .pro, .coop, .asia and thousands of gTLDs and ccTLDs for your specified terms.

  • You can also use our "with typos" option, which adds automatically generated misspellings to your search terms to boost your anti-phishing activities.

Practical usage

Trademark Infringement and Copyright Violation Prevention

Track all domains that contain your company or brand name as part of brand protection and anti-counterfeiting efforts. Use them as Brand Alert search terms to get an exhaustive list of web properties that may be mimicking your organization.

Email Security Enhancement

Prevent all employees from interacting with the owners of spoofed email addresses. Brand Alert can alert you each time a well-known brand or company name gets used in newly registered domains (NRDs). Regular monitoring can help you reduce risks tied to phishing, business email compromise (BEC), invoice scams, and spam.

Keep Track of Domain Deletions

Be alerted as soon as domain names that contain branded strings are being dropped by their current registrant, as part of your defensive domain registration efforts or to support your business growth.

Brand Alert Overview | WhoisXML API

Get 500 free API credits. No credit card required.

Get started