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Enter a domain, URL, IP, email, or record and get a focused result without setup.
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IDN converter and homograph checker
Enter a domain in Unicode or punycode to see both forms, the scripts each label uses, and whether it imitates another name with lookalike characters.
Results
Interactive intelligence tool
Run the check, then ship the workflow
Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.
Review decision-ready signals
Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.
Automate the workflow that works
Use the request and response examples to turn a one-off check into an API call or recipe.
Used by people at these companies
What this tool helps you decide
Each page is shaped around a practical operational question, not just a raw lookup.
See the current DNS, registration, security, pricing, or reputation evidence.
Compare the result with related checks so the next move is easier to trust.
Copy examples, open linked tools, or move into API documentation when you need scale.
Trust signals before you integrate
Transparent docs, authenticated requests, and visible reliability details make it easier to evaluate DomScan before you ship.
Service status
API artifacts
OpenAPI, Swagger, Postman, CLI, SDK, and MCP links are one click away.
API keys
Protected access
Authenticated endpoints use API keys with clear credit costs before you call them.
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Example request
Start from the curl and HTTP samples, then map the parameters into your application code.
Key Features
Unicode and punycode
Converts both ways under UTS 46 and checks label and name length limits.
Script analysis
Lists the Unicode scripts in each label, flags mixed-script labels and finds invisible characters.
Lookalike detection
Checks each label for selected Unicode characters that resemble Latin letters, using a curated subset of confusable mappings. Coverage is partial: an unflagged name may still look similar, and visual resemblance can depend on font and context.
Example request
GET /v1/idn?domain=münchen.deGET /v1/idn?domain=xn--80ak6aa92e.comBuilt on the same API
The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.
Frequently asked questions
What is punycode?
The ASCII encoding used in DNS for internationalized domain names. Labels start with xn--, for example xn--mnchen-3ya.de for münchen.de.
What is a homograph attack?
Registering a domain that uses characters from another script, such as Cyrillic а instead of Latin a, so it looks identical to a trusted name.
Does a low risk result mean the domain is safe?
No. The lookalike table covers the most common confusable characters, not the full Unicode list, so treat the result as a signal rather than proof.