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 API credits. No credit card required.

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


  • 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.

Brand Alert API | WhoisXML API

Get 500 free API credits. No credit card required.

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Premium API Services

Our APIs are available in an enhanced version that offers better performance with a dedicated load balancer and a premium endpoint to enable faster throttling for large-scale API deployments.

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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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