crt.sh | Certificate Search: certificate history search engine

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crt.sh | Certificate Search:证书历史搜索引擎

foreword

Compared with the machines of censys and shodan, the Crtsh website can record the SSL certificate issuance records from the certificate authority.

Of course, test certificates and self-signed certificates are generally not included, but the domain name of CloudflareCDN will be collected

Instructions

After opening the official website, enter the main domain name to search, the effect is for example https://crt.sh/?q=blueskyxn.com

Common certificates such as TA, LE, and CF are normally included, and subdomains, generic domain names, etc. are included in the record

As for what this can do, you know it.

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