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Certificate search
Build a certificate-transparency search for domain research.
Your results will appear here.
Enter a value or load an example to begin.Where your data goes
Processing happens entirely in this browser. Your input is not uploaded, logged, or saved by sudor.io. External result links only open when you choose them.
Before you use the result
Opens crt.sh when you choose a result link. This is a public-record search, not a live subdomain scanner.