.biz domains

The .biz domain is a long-established generic extension created specifically for business use. Introduced as an alternative to .com, it remains a clear, widely recognized choice for companies, e-commerce sites, and commercial ventures, particularly when a preferred .com name is already taken. The three letters read unmistakably as business, so a .biz address sets a commercial tone at a glance. Registration is open worldwide with no restrictions, and the extension is broadly supported and understood. For a company that wants an affordable, professional address with an obvious business meaning, .biz offers a dependable option that has been serving commercial sites for decades, making it a practical fallback and a straightforward statement that the site exists to do business.

.biz domain details

Type	Generic Top-Level Domain
Registry	GoDaddy Registry
Registration	$18.00/yr
Renewal	$18.00/yr
WHOIS privacy	Free
DNSSEC	Supported
Registration period	1 to 10 years

Register .biz domains with an AI agent

OSIR is an AI-native registrar. Every .biz domain can be registered, renewed, and managed through natural language using Claude, ChatGPT, or any agent that supports the Model Context Protocol (MCP).

Frequently asked questions

How do I register a .biz domain?: Search for the .biz name you want, confirm it is available, and complete checkout - or ask an MCP-compatible AI assistant to do it for you. Registration through OSIR starts at $18.00/yr and includes free WHOIS privacy, DNSSEC, and anycast DNS.
Can I register a .biz domain with Claude or ChatGPT?: Yes. OSIR supports the Model Context Protocol (MCP) with 82 tools, so any MCP-compatible AI assistant - including Claude Desktop, Cursor, and Copilot - can search, register, and manage .biz domains on your behalf.
What is included with a .biz domain registration?: Every .biz domain registered through OSIR includes anycast DNS, DNSSEC support, free WHOIS privacy protection, registrar lock, and full API and MCP access. Registration starts at $18.00/yr.
How much does it cost to renew a .biz domain?: .biz renewal is $18.00/yr through OSIR. Prices include ICANN fees and a 3% or $0.30 processing fee (whichever is greater). There are no hidden fees.