IDN Converter API — Unicode to Punycode Domain Conversion

Description

Convert Unicode domain names to their Punycode (ASCII) equivalents and back. Essential for working with internationalized domain names that contain non-ASCII characters like accents, Chinese characters, Arabic script, etc.

Use Cases

Convert Unicode domains to Punycode for DNS configuration
Decode Punycode domains to readable Unicode
Validate IDN domain name encoding
Detect IDN homograph attacks (lookalike domains)

Parameters

Name	Type	Required	Description
`domain`	string	Yes	Domain name in Unicode or Punycode format
`format`	string	No	Response format: json or markdown

Example Request

bash

curl -H 'X-API-Key: YOUR_KEY' \
  'https://api.example.com/dns/idn?domain=münchen.de'

python

import httpx

resp = httpx.get(
    "https://api.example.com/dns/idn?domain=münchen.de",
    headers={"X-API-Key": "YOUR_KEY"},
)
print(resp.json())

javascript

const resp = await fetch("https://api.example.com/dns/idn?domain=münchen.de", {
  headers: { "X-API-Key": "YOUR_KEY" },
});
const data = await resp.json();
console.log(data);

Example Response

json

{
  "unicode": "münchen.de",
  "punycode": "xn--mnchen-3ya.de",
  "is_idn": true
}

IDN Converter

Description

Use Cases

Parameters

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