Brand Alert API | WhoisXML API

Keep an eye on domains that contain a trademarked word or product phrase, or minor variations to your brand

Brand Alert API searches across all recently registered & deleted domain names and returns result sets consisting of domain names that contain term(s) that are specified by you.

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500 free credits. No credit card required.

11.5+ billion Historic WHOIS Records
582+ million Domains tracked
2,864+ TLDs tracking
10+ years of data crawling


  • 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

Brand Protection

Brand Protection

The product 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.

Email security

Keep your data and email users safe. Avoid interacting with spoofed email addresses that resemble well-known brands to reduce the risk of phishing, business email compromise, invoice scams, and spam.

Email security
Spoofing prevention

Spoofing prevention

Protect your brand from abuse, phishing and spoofing that would put your brand identity and company image at risk by proactively detecting registered domain names that deliberately or inadvertently resemble your brand name.

Proactively track all the newly registered and recently expired domains specifically with our new Domain Research Suite Dashboard.

Fast, intuitive and responsive

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Brand Monitor | Domain Research Suite | WhoisXML API
Brand Alert API | WhoisXML API

Get 500 free credits. No credit card required.

Get started

Enterprise API Packages

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.

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