Zro7Zro7/Reverse DNS Lookup

Reverse DNS

IPv4 or IPv6 → PTR hostname via in-addr.arpa / ip6.arpa.

Runs entirely in your browser. Files never leave your device.

How it works

  1. 1

    Enter the query

    Type a domain, IP or URL.

  2. 2

    Run the lookup

    Zro7 queries a public resolver directly from your browser.

  3. 3

    Read the result

    See structured results with copy-friendly output.

Frequently asked questions

How does this work without a backend?

The tool queries public HTTPS endpoints — Cloudflare DoH, RDAP, ipapi — directly from your browser. Zro7 never proxies your queries.

Is my query logged by Zro7?

No. There is no Zro7 server involved; the request goes straight from your browser to the public resolver.

Do I need to install anything?

No. Everything runs in a modern browser tab.

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