Domain Extensions / .day
.day domains
A .day domain is a generic top-level domain operated by Google Registry. It supports registrations from 1 to 10 years. Free WHOIS privacy is included on every registration.
.day domain details
| Type | Generic Top-Level Domain |
| Registry | Google Registry |
| Registration | $11.00/yr |
| Renewal | $11.00/yr |
| WHOIS privacy | Free |
| DNSSEC | Supported |
| Registration period | 1 to 10 years |
Register .day domains with an AI agent
OSIR is an AI-native registrar. Every .day 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 .day domain?
- Search for the .day 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 $11.00/yr and includes free WHOIS privacy, DNSSEC, and anycast DNS.
- Can I register a .day domain with Claude or ChatGPT?
- Yes. OSIR supports the Model Context Protocol (MCP) with 74 tools, so any MCP-compatible AI assistant - including Claude Desktop, Cursor, and Copilot - can search, register, and manage .day domains on your behalf.
- What is included with a .day domain registration?
- Every .day domain registered through OSIR includes anycast DNS, DNSSEC support, free WHOIS privacy protection, registrar lock, and full API and MCP access. Registration starts at $11.00/yr.
- How much does it cost to renew a .day domain?
- .day renewal is $11.00/yr through OSIR. Prices include ICANN fees and a 3% or $0.30 processing fee (whichever is greater). There are no hidden fees.