Free
About
This app helps you understand domain name status, including DNS resolution, registration details, and link probing. It offers a clean, paper-like interface for quick lookups and stores results locally for easy reference and comparison.
✓DNS resolution (A, AAAA, CNAME, MX, TXT, NS)
✓Whois registration information with remaining expiry days
✓Link probing (GET/HEAD requests with status code and duration)
✓Local archive for saved queries with notes and tags
✓Comparison of two saved records
✓Copy BIND format DNS records
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What's New in Zonebook
1.1.0
August 26, 2026
• 1.1 清理版本：移除源码中冗余注释，体积更小，启动更快 • 修正少数边界条件下的解析超时 • 继续打磨查询 / 档案 / 我的三个 tab
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FAQ
Does Zonebook have ads?
No, Zonebook does not have any advertisements. It is completely free and does not include in-app purchases or force users to log in.
What domain information can Zonebook provide?
Zonebook provides DNS resolution details (A, AAAA, CNAME, MX, TXT, NS), Whois registration information including remaining expiry days, and link probing results like status codes and request duration.
How does Zonebook handle user data and privacy?
Your entered domains and query results are saved locally in a JSON archive on your device, which you can clear at any time. Network requests are only made when you initiate a query or probe.
What are the system requirements for Zonebook?
Zonebook requires a minimum of iOS 17 and is exclusively available for iPhone in a vertical (portrait) orientation.
Can Zonebook be used offline?
While the app itself can be opened offline, performing DNS resolution, Whois lookups, or link probing requires an active internet connection as it involves network requests.
How often is Zonebook updated?
The latest version, 1.1.0, was last updated on August 26, 2026. Update frequency is not explicitly stated but the app was released on August 23, 2026.
What is the user sentiment for Zonebook based on ratings?
Currently, Zonebook has a rating of 1.0 stars from 1 rating. This single rating indicates a very low user satisfaction score at this time.
What features does Zonebook NOT offer?
Zonebook does not offer features like Ping, port scanning, LAN scanning, VPN functionality, or a full HTTP request editor. It focuses on core domain and link checking.
