WHOIS Lookup
Look up domain registration details via RDAP.
- Browser-based
- No signup
Developer
Processed using an external service
Enter a domain to list certificate transparency entries with issuer and validity dates using the crt.sh public database.
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
1. Enter the domain, IP, ZIP code, or URL requested by SSL Checker. 2. Click the lookup or check button. 3. Wait for the external service response. 4. Review the formatted results table or details. 5. Copy values you need—do not query sensitive internal hosts. This tool calls an external service—see the privacy note for what is sent.
Example: paste a small sample input into SSL Checker, run the transform or validation, and compare the output with the before text—fix any syntax errors reported before copying.
Enter a domain to search certificate transparency logs via crt.sh for issued SSL/TLS certificates. The domain you enter is sent to that service.
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
This tool sends data to an external service for processing. See the tool details below for what is transmitted.
Yes. Utilnivo tools are free to use and do not require an account.
Utilnivo does not require an account. See the privacy note on this page for how your data is processed for this tool.
Open the tool on this page, enter your inputs, and use the on-screen controls. No account is required.
Look up domain registration details via RDAP.
Look up DNS records for a domain.
Inspect HTTP response headers for a URL.
Format, minify, and validate JSON with optional key sorting.
Compare two JSON documents and list structural differences.
Format, minify, and validate XML with readable indentation.
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Enter a domain to search certificate transparency records.