```
echo | openssl s_client -showcerts -servername gateway.ipfs.io -connect gateway.ipfs.io:443 2>/dev/null | openssl x509 -inform pem -noout -text                                                                                    master 1h ⬡
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            7b:25:9a:5e:00:00:00:00:4b:00:00:00:00:00:00:00
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=ES, ST=Madrid, L=Madrid, O=Allot, OU=Allot, CN=allot.com/emailAddress=info@allot.com
        Validity
            Not Before: Apr 18 21:55:03 2019 GMT
            Not After : Apr 17 21:55:03 2021 GMT
        Subject: CN=gateway.ipfs.io
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:f5:4c:83:d1:63:f6:71:a5:db:b2:46:22:41:78:
                    47:5f:57:ad:9f:69:c9:71:ce:69:a7:bd:92:1d:f9:
                    29:5d:d9:35:42:a7:39:69:0e:81:3d:f1:5c:2d:1d:
                    ec:03:41:7a:4b:3e:4b:09:3f:b4:b0:a8:d7:7f:07:
                    b6:89:67:a1:be:ac:6a:79:0e:d2:16:39:d3:60:30:
                    ef:0a:69:f9:b4:6f:49:1f:24:26:26:b3:ed:9b:b1:
                    ca:39:ca:11:73:7c:c1:9c:5a:54:da:f8:f3:70:50:
                    e3:dd:4a:12:cc:3e:3d:ab:ac:cb:66:66:3a:21:37:
                    b7:17:ad:86:17:84:f3:0a:c9
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Alternative Name:
                DNS:gateway.ipfs.io
            X509v3 Subject Key Identifier:
                DA:06:6E:B5:BA:8A:DA:52:E7:75:A3:F0:E6:56:B7:88:38:3F:89:8C
            X509v3 Basic Constraints:
                CA:FALSE
    Signature Algorithm: sha256WithRSAEncryption
         5b:65:6a:66:78:01:b9:df:9a:0b:aa:1a:5c:9c:a2:b6:9e:0f:
         87:48:d6:c6:8d:3b:5f:be:b1:6c:c4:9d:38:75:ae:a1:fd:4e:
         44:52:b6:04:bc:fc:ef:10:6c:ab:e1:6a:9e:f3:7e:d4:2f:92:
         12:3e:8f:5a:09:7d:ca:22:9c:49:99:7e:d3:6a:af:4a:c3:f5:
         b1:e5:96:8e:98:af:b7:8a:3e:59:44:da:a0:f9:66:ea:63:2f:
         51:c3:6d:db:90:7c:2d:c3:13:b0:bc:75:a3:62:21:fa:ac:58:
         a6:64:95:7f:91:77:86:49:11:f2:2d:d7:09:89:9e:36:01:60:
         0f:3e:55:21:cc:c6:2a:07:36:35:87:ba:6b:d1:9d:1b:fd:c6:
         0d:ab:54:46:01:02:54:69:85:6b:f5:a8:c7:0c:21:86:26:e0:
         79:ab:fc:4b:83:29:f6:60:3d:e9:d9:bd:1e:9c:6e:16:be:24:
         84:0d:db:c5:b8:79:1a:65:1d:71:8a:a4:f0:a5:4d:0e:16:01:
         51:9d:5e:1f:97:5d:51:aa:20:1b:f9:97:7a:3d:bc:a3:57:fc:
         d7:f5:c8:05:a5:76:21:ba:10:eb:4b:34:6e:d6:1f:88:5b:25:
         bf:1f:ba:ac:04:94:73:cb:d3:95:b5:d1:7f:6e:9a:18:b8:6e:
         11:9b:12:f1
```