Look Up Domain Registration Details
Query WHOIS and RDAP databases to get complete registration information for any domain.
Check Domain Expiration Dates
Monitor when domains expire to prevent accidental lapses or plan acquisition of expiring domains.
Quick answer: Use the Whois RDAP tool through ToolRouter to check domain expiration dates directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolA domain that lapses because someone forgot to renew it is one of the most preventable and costly infrastructure failures. When a domain expires, your website goes down, your email stops working, and in the worst case, someone else registers it. Even for domains you do not own, knowing expiration dates is valuable -- expired domains in your industry can be acquisition opportunities.
The lookup_domain skill retrieves the exact expiration date for any domain, along with the registrar and auto-renewal status where available. You can check your own domains to verify renewals are on track, monitor competitor or partner domains for changes, and watch domains you want to acquire. This simple check prevents expensive outages and reveals acquisition opportunities.
How to check domain expiration dates with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Claude approaches domain registration research as an investigative conversation, connecting registration patterns to strategic insights through deep reasoning. Ask Claude to analyze ownership timelines, assess domain provenance for acquisitions, and cross-reference registrar details across your entire portfolio in a single session. Its ability to draw inferences from registration data makes it especially valuable for due diligence, competitive intelligence, and security investigations where context matters.
How to check domain expiration dates
Once connected (see setup above), use the Whois RDAP tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- Ask Claude: "Check the expiration dates for these domains using whois-rdap" and provide your domain list
- Claude returns expiration dates for each domain
- Review which domains are expiring soon
- Set renewal reminders for your own domains and monitor target domains
Example prompt
Try this with the Whois RDAP tool
Check the expiration dates for all our company domains: example.com, example.io, example.dev, and our-brand.com. Flag any that expire within 90 days.
Tips
- Ask Claude to check all your domains in one batch for a quick overview
- Set up a quarterly check of all your domain expiration dates
- Monitor competitor domains for potential acquisition when they expire
Frequently Asked Questions
How do I check domain expiration dates with an AI assistant?
Monitor when domains expire to prevent accidental lapses or plan acquisition of expiring domains. Connect the Whois RDAP tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask Claude: "Check the expiration dates for these domains using whois-rdap" and provide your domain list Claude returns expiration dates for each domain
Which AI assistants can check domain expiration dates?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all check domain expiration dates using the Whois RDAP tool through ToolRouter, with no API keys or coding required.
What does the Whois RDAP tool do?
Look up domain registration details, ownership history, and registrar information using WHOIS and RDAP protocols.
Related Use Cases
Research Domain Ownership History
Investigate the ownership history and registration timeline of a domain for due diligence and research.
Verify Domain Registrar Information
Confirm which registrar manages a domain and verify that registrar details are correct and current.
Check Domain Age
Determine when a domain was first registered to assess its maturity, trustworthiness, and SEO value.