IDN Converter

IDN (Internationalized Domain Names) is the technology that allows national characters such as Cyrillic to be used in domain names. For correct operation on the internet, these domains are transformed into a special format called Punycode — an ASCII string beginning with the prefix “xn--”. Understanding how your Cyrillic domain appears in Punycode is critical for technical SEO: it helps analyze external links correctly, verify redirects, and avoid encoding problems.

Our IDN converter is a simple and effective tool for instant domain conversion. Paste a Cyrillic domain to get its Punycode equivalent, or paste a Punycode string to see its human‑readable form. These two modes help during backlink checks when third‑party services show only Punycode. Using this tool ensures you do not miss details when analyzing a backlink profile or migrating a site that uses IDN domains.