.phd domains

The .phd domain is a generic extension from Google Registry aimed at academics, researchers, and experts. The three letters signal advanced study and authority, so a .phd address suits a researcher's personal site, an academic portfolio, a consultancy built on deep expertise, or an educational project. Like Google's other extensions, the entire .phd namespace is on the HSTS preload list, so browsers connect only over HTTPS and a valid TLS certificate is required, making every .phd site secure by default. Registration is open. For a scholar or specialist who wants a web address that conveys credibility and rigor, a dedicated extension states that standing directly, and the enforced security adds a modern, trustworthy foundation. When expertise is the brand, ending the domain in .phd underlines it.

.phd domain details

Type	Generic Top-Level Domain
Registry	Google Registry
Registration	$26.00/yr
Renewal	$26.00/yr
WHOIS privacy	Free
DNSSEC	Supported
Registration period	1 to 10 years

Register .phd domains with an AI agent

OSIR is an AI-native registrar. Every .phd 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 .phd domain?: Search for the .phd 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 $26.00/yr and includes free WHOIS privacy, DNSSEC, and anycast DNS.
Can I register a .phd 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 .phd domains on your behalf.
What is included with a .phd domain registration?: Every .phd domain registered through OSIR includes anycast DNS, DNSSEC support, free WHOIS privacy protection, registrar lock, and full API and MCP access. Registration starts at $26.00/yr.
How much does it cost to renew a .phd domain?: .phd renewal is $26.00/yr through OSIR. Prices include ICANN fees and a 3% or $0.30 processing fee (whichever is greater). There are no hidden fees.