melon/ssl-certs-checker
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README.md

SSL certificate checker written in golang

Setup Guide

go get -u github.com/guessi/ssl-certs-checker

Examples

install binary to your ${GOPATH}

go install github.com/ssl-certs-checker

check single target host certificates infomation

${GOPATH}/bin/ssl-certs-checker --hosts "www.google.com"

+----------------+----------------+-------------------------------+-------------------------------+------------+
| Host           | Common Name    | Not Before                    | Not After                     | Issuer     |
+----------------+----------------+-------------------------------+-------------------------------+------------+
| www.google.com | www.google.com | 2020-02-12 11:47:41 +0000 UTC | 2020-05-06 11:47:41 +0000 UTC | GTS CA 1O1 |
+----------------+----------------+-------------------------------+-------------------------------+------------+

check multiple target hosts' certificates at once

${GOPATH}/bin/ssl-certs-checker --hosts "www.google.com,www.azure.com,www.amazon.com"

+----------------+----------------+-------------------------------+-------------------------------+-----------------------+
| Host           | Common Name    | Not Before                    | Not After                     | Issuer                |
+----------------+----------------+-------------------------------+-------------------------------+-----------------------+
| www.google.com | www.google.com | 2020-02-12 11:47:41 +0000 UTC | 2020-05-06 11:47:41 +0000 UTC | GTS CA 1O1            |
| www.azure.com  | *.azure.com    | 2019-12-17 19:51:44 +0000 UTC | 2020-12-17 19:51:44 +0000 UTC | Microsoft IT TLS CA 4 |
| www.amazon.com | www.amazon.com | 2019-09-18 00:00:00 +0000 UTC | 2020-08-23 12:00:00 +0000 UTC | DigiCert Global CA G2 |
+----------------+----------------+-------------------------------+-------------------------------+-----------------------+

run with docker

docker build -t ssl-certs-checker .

docker run --rm -it ssl-certs-checker --hosts "www.google.com"

License

MIT LICENSE