# Domain Age Check Skill for AI agents

> A small Domain Age Check tool with both a REST API and an AI skill for checking registration date, expiration date, age, and days until expiration.
- **Author**: Nader Cserny
- **Published**: 2026-03-28
- **URL**: https://nader.io/posts/domain-age-check-skill-for-agents

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I built a small Domain Age Check tool that can be used both directly and by agents.

It exposes a simple REST API for checking a domain's registration date, expiration date, age, and days until expiration. I also packaged it as an AI skill, so agents can use it without needing custom setup every time.

Useful for quick legitimacy checks, seeing how established a domain is, or keeping an eye on expiry.

Try it here: <https://dac.nader.io/>

Skill page: <https://skills.sh/ncserny/domain-age-checker/domain-age-checker>

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