http://r3.i.lencr.org/: CN=R3,O=Let's Encrypt,C=US

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CA Certificate Basic Information

This certificate is intermediate certificate used for the issuance of other certificates.

  • Certificate download URL: http://r3.i.lencr.org/ (DER format)
  • Serial number: 192961496339968674994309121183282847578
  • SHA-1 Fingerprint: a053375bfe84e8b748782c7cee15827a6af5a405
  • SHA-1 Fingerprint: a0:53:37:5b:fe:84:e8:b7:48:78:2c:7c:ee:15:82:7a:6a:f5:a4:05
  • SHA-256 Fingerprint: 67add1166b020ae61b8f5fc96813c04c2aa589960796865572a3c7e737613dfd
  • SHA-256 Fingerprint: 67:ad:d1:16:6b:02:0a:e6:1b:8f:5f:c9:68:13:c0:4c:2a:a5:89:96:07:96:86:55:72:a3:c7:e7:37:61:3d:fd
  • Signature hash algorithm: sha256
  • Subject: CN=R3,O=Let’s Encrypt,C=US
  • Not valid before: 2020-09-04 00:00:00
  • Not valid after: 2025-09-15 16:00:00
  • Issuer:
    • Issuer name: CN=ISRG Root X1,O=Internet Security Research Group,C=US
    • Issuer certificate URL: http://x1.i.lencr.org/

Download certificate through curl:

curl -sSL http://r3.i.lencr.org/ --output cert.crt

Download certificate through wget:

wget -q http://r3.i.lencr.org/ --output-document=cert.crt

CA Certificate Detail Information

Use openssl x509 to decode certificate to get detail information:

openssl x509 -in cert.crt -inform der -text -noout

Decoded detail certificate information:

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            91:2b:08:4a:cf:0c:18:a7:53:f6:d6:2e:25:a7:5f:5a
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Internet Security Research Group, CN=ISRG Root X1
        Validity
            Not Before: Sep  4 00:00:00 2020 GMT
            Not After : Sep 15 16:00:00 2025 GMT
        Subject: C=US, O=Let's Encrypt, CN=R3
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:bb:02:15:28:cc:f6:a0:94:d3:0f:12:ec:8d:55:
                    92:c3:f8:82:f1:99:a6:7a:42:88:a7:5d:26:aa:b5:
                    2b:b9:c5:4c:b1:af:8e:6b:f9:75:c8:a3:d7:0f:47:
                    94:14:55:35:57:8c:9e:a8:a2:39:19:f5:82:3c:42:
                    a9:4e:6e:f5:3b:c3:2e:db:8d:c0:b0:5c:f3:59:38:
                    e7:ed:cf:69:f0:5a:0b:1b:be:c0:94:24:25:87:fa:
                    37:71:b3:13:e7:1c:ac:e1:9b:ef:db:e4:3b:45:52:
                    45:96:a9:c1:53:ce:34:c8:52:ee:b5:ae:ed:8f:de:
                    60:70:e2:a5:54:ab:b6:6d:0e:97:a5:40:34:6b:2b:
                    d3:bc:66:eb:66:34:7c:fa:6b:8b:8f:57:29:99:f8:
                    30:17:5d:ba:72:6f:fb:81:c5:ad:d2:86:58:3d:17:
                    c7:e7:09:bb:f1:2b:f7:86:dc:c1:da:71:5d:d4:46:
                    e3:cc:ad:25:c1:88:bc:60:67:75:66:b3:f1:18:f7:
                    a2:5c:e6:53:ff:3a:88:b6:47:a5:ff:13:18:ea:98:
                    09:77:3f:9d:53:f9:cf:01:e5:f5:a6:70:17:14:af:
                    63:a4:ff:99:b3:93:9d:dc:53:a7:06:fe:48:85:1d:
                    a1:69:ae:25:75:bb:13:cc:52:03:f5:ed:51:a1:8b:
                    db:15
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature, Certificate Sign, CRL Sign
            X509v3 Extended Key Usage: 
                TLS Web Client Authentication, TLS Web Server Authentication
            X509v3 Basic Constraints: critical
                CA:TRUE, pathlen:0
            X509v3 Subject Key Identifier: 
                14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
            X509v3 Authority Key Identifier: 
                keyid:79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E

            Authority Information Access: 
                CA Issuers - URI:http://x1.i.lencr.org/

            X509v3 CRL Distribution Points: 

                Full Name:
                  URI:http://x1.c.lencr.org/

            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
                Policy: 1.3.6.1.4.1.44947.1.1.1

    Signature Algorithm: sha256WithRSAEncryption
         85:ca:4e:47:3e:a3:f7:85:44:85:bc:d5:67:78:b2:98:63:ad:
         75:4d:1e:96:3d:33:65:72:54:2d:81:a0:ea:c3:ed:f8:20:bf:
         5f:cc:b7:70:00:b7:6e:3b:f6:5e:94:de:e4:20:9f:a6:ef:8b:
         b2:03:e7:a2:b5:16:3c:91:ce:b4:ed:39:02:e7:7c:25:8a:47:
         e6:65:6e:3f:46:f4:d9:f0:ce:94:2b:ee:54:ce:12:bc:8c:27:
         4b:b8:c1:98:2f:a2:af:cd:71:91:4a:08:b7:c8:b8:23:7b:04:
         2d:08:f9:08:57:3e:83:d9:04:33:0a:47:21:78:09:82:27:c3:
         2a:c8:9b:b9:ce:5c:f2:64:c8:c0:be:79:c0:4f:8e:6d:44:0c:
         5e:92:bb:2e:f7:8b:10:e1:e8:1d:44:29:db:59:20:ed:63:b9:
         21:f8:12:26:94:93:57:a0:1d:65:04:c1:0a:22:ae:10:0d:43:
         97:a1:18:1f:7e:e0:e0:86:37:b5:5a:b1:bd:30:bf:87:6e:2b:
         2a:ff:21:4e:1b:05:c3:f5:18:97:f0:5e:ac:c3:a5:b8:6a:f0:
         2e:bc:3b:33:b9:ee:4b:de:cc:fc:e4:af:84:0b:86:3f:c0:55:
         43:36:f6:68:e1:36:17:6a:8e:99:d1:ff:a5:40:a7:34:b7:c0:
         d0:63:39:35:39:75:6e:f2:ba:76:c8:93:02:e9:a9:4b:6c:17:
         ce:0c:02:d9:bd:81:fb:9f:b7:68:d4:06:65:b3:82:3d:77:53:
         f8:8e:79:03:ad:0a:31:07:75:2a:43:d8:55:97:72:c4:29:0e:
         f7:c4:5d:4e:c8:ae:46:84:30:d7:f2:85:5f:18:a1:79:bb:e7:
         5e:70:8b:07:e1:86:93:c3:b9:8f:dc:61:71:25:2a:af:df:ed:
         25:50:52:68:8b:92:dc:e5:d6:b5:e3:da:7d:d0:87:6c:84:21:
         31:ae:82:f5:fb:b9:ab:c8:89:17:3d:e1:4c:e5:38:0e:f6:bd:
         2b:bd:96:81:14:eb:d5:db:3d:20:a7:7e:59:d3:e2:f8:58:f9:
         5b:b8:48:cd:fe:5c:4f:16:29:fe:1e:55:23:af:c8:11:b0:8d:
         ea:7c:93:90:17:2f:fd:ac:a2:09:47:46:3f:f0:e9:b0:b7:ff:
         28:4d:68:32:d6:67:5e:1e:69:a3:93:b8:f5:9d:8b:2f:0b:d2:
         52:43:a6:6f:32:57:65:4d:32:81:df:38:53:85:5d:7e:5d:66:
         29:ea:b8:dd:e4:95:b5:cd:b5:56:12:42:cd:c4:4e:c6:25:38:
         44:50:6d:ec:ce:00:55:18:fe:e9:49:64:d4:4e:ca:97:9c:b4:
         5b:c0:73:a8:ab:b8:47:c2

CA Certificate in PEM Format

Use openssl x509 to convert certificate from DER format to PEM format:

openssl x509 -in cert.crt -inform der

Converted PEM format certificate:

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Download PEM Certificate

Also see Top 1 Millions Domains CA Certificate List


Page version: a651bdd 2022-03-26