Domain Validator online free — large files supported
Validate domain values.
Explanation
Domain Validator is a fast, free online tool for validators. Paste your input, click Run, and get results instantly via our API-backed processing.
Input Format
Plain Text
Example
Use Cases
- Validate domain names before registering them to ensure they meet DNS naming conventions and TLD requirements
- Check if email domain portions are valid before sending verification emails in user registration flows
- Sanitize and validate user-submitted URLs to prevent malformed domains from breaking application logic
- Verify domain format compliance in API requests that accept website URLs as parameters
- Validate subdomain structures when implementing multi-tenant SaaS applications with custom domains
- Screen domain inputs for security vulnerabilities like homograph attacks or invalid characters before database storage
How to Use Domain Validator
- Paste or type your input data in the left text area
- Click the Run button to process via the API
- Copy the result from the output area
Need to scale processing or automate workflows?
Frequently Asked Questions
How is my data processed?
Data is processed on the server via API; we do not store content beyond processing and only log minimal technical metadata.
What is Domain Validator?
Domain Validator is a free online tool that processes your input via a secure API and returns results instantly.
Is Domain Validator free to use?
Yes, Domain Validator is completely free with no registration required. You can also access it via our API with a generous free tier.
Is my data safe with Domain Validator?
Data is processed on the server via API; we do not store content beyond processing and only log minimal technical metadata.
Can I use Domain Validator for large files?
Yes, Domain Validator supports large files. For very large datasets, consider using the API endpoint for batch processing.