IPアドレス検索

このツールの使い方

1. 1

   Type an IPv4 address (e.g. 8.8.8.8), an IPv6 address, or a domain name (e.g. example.com) into the input field.

2. 2

   Click Lookup to send the query to our server, which fetches the record from the ipapi.co database.

3. 3

   Read the returned fields: IP, city, region, country, postal code, latitude, longitude, timezone, organization, and ASN.

4. 4

   Change the value and click Lookup again to check another address; an invalid or rate-limited request shows an error message instead of results.

IPアドレス検索とは何ですか？

よくある活用例

• Investigating a suspicious login or order by checking whether the IP in your logs resolves to the country and ISP the user claims.

• Debugging a CDN or DNS issue by confirming which network and region a server IP belongs to.

• Enriching web analytics or fraud-scoring records with the country, ASN, and organization behind a visitor's address.

• Verifying that a VPN or proxy is exiting in the expected country before running a geo-restricted test.

• Looking up the ASN and org of an address that is hammering your firewall logs to identify the responsible hosting provider.

• Quickly resolving a domain to its hosting location when triaging an abuse report or a downtime alert.

よくある質問