The IDN (Punycode) Domain Encoding tool is a tool used to convert Internationalized Domain Names (IDN) to Punycode encoding. It can convert the input IDN domain name to Punycode encoding and display the result in the output area.

Function description:

1. Paste or enter the IDN domain name into the tool.

2. The tool will automatically convert the IDN domain name to Punycode encoding.

3. The converted Punycode encoding will be displayed in the tool's output area.

Use cases:

1. Domain name registration: When registering an internationalized domain name, it is necessary to convert the IDN domain name to Punycode encoding. Using this tool, you can easily convert the IDN domain name to Punycode encoding for registration.

2. Domain name management: When managing IDN domain names, it is necessary to convert them to Punycode encoding. Using this tool, you can quickly convert the IDN domain name to Punycode encoding for management.

3. Domain name resolution: When performing domain name resolution, it is necessary to convert the IDN domain name to Punycode encoding. Using this tool, you can conveniently convert the IDN domain name to Punycode encoding for resolution.

Instructions:

1. Paste or enter the IDN domain name into the tool.

2. Click the "Convert" button, and the tool will automatically convert the IDN domain name to Punycode encoding.

3. The converted Punycode encoding will be displayed in the tool's output area.

Notes:

1. The tool can only convert IDN domain names to Punycode encoding and cannot convert Punycode encoding to IDN domain names.

2. The tool can only process IDN domain names that start with "xn--". If the input domain name does not comply with this rule, the tool will not be able to convert it.

3. The tool defaults to using "xn--3ds443g.com" as sample data, and users can modify the sample data as needed.