Certificate Summary:

Subject: ftp.gnu.org
Issuer: R11
Expiration: 2025-11-01 22:29:41 UTC
Key Identifier: C2:71:B3:F2:75:B9:C6:4C:76:DF:37:60:D7:42:01:50:9E:3D:0C:B9

Download and Install

Received at FYIcenter.com on: 2025-08-23

Certificate Detailed Information:

Name:
/CN=ftp.gnu.org

Subject: 
   Common Name (CN): ftp.gnu.org
   Organizational Unit Name (OU): 
   Organization Name (O): 
   Locality Name (L): 
   State or Province Name (ST): 
   Country Name (C): 
   Email Address: 
Issuer: 
   Common Name (CN): R11
   Organizational Unit Name (OU): 
   Organization Name (O): Let's Encrypt
   Locality Name (L): 
   State or Province Name (ST): 
   Country Name (C): US
   Email Address: 
Valid From: Sun, 03 Aug 2025 22:29:42 +0000 
Valid To: Sat, 01 Nov 2025 22:29:41 +0000 
Serial Number: 0x05F9B72B94D8C07530A03607D7F1F1331169 
Hash: acb51158 
Version: 2 
Signature Type: sha256WithRSAEncryption 
Purposes:  
   SSL client 
   SSL server 
   Netscape SSL server 
   S/MIME signing 
   S/MIME encryption 
   CRL signing 
   Any Purpose 
   OCSP helper 
   Time Stamp signing 
Extensions:  
   keyUsage:
      Digital Signature, Key Encipherment 
   extendedKeyUsage:
      TLS Web Server Authentication, TLS Web Client Authentication 
   basicConstraints:
      CA:FALSE 
   subjectKeyIdentifier:
      C2:71:B3:F2:75:B9:C6:4C:76:DF:37:60:D7:42:01:50:9E:3D:0C:B9 
   authorityKeyIdentifier:
      keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
 
   authorityInfoAccess:
      CA Issuers - URI:http://r11.i.lencr.org/
 
   subjectAltName:
      DNS:alpha.gnu.org, DNS:ftp.gnu.org 
   certificatePolicies:
      Policy: 2.23.140.1.2.1
 
   crlDistributionPoints:
      
Full Name:
  URI:http://r11.c.lencr.org/106.crl
 
   ct_precert_scts:
      Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : A4:42:C5:06:49:60:61:54:8F:0F:D4:EA:9C:FB:7A:2D:
                26:45:4D:87:A9:7F:2F:DF:45:59:F6:27:4F:3A:84:54
    Timestamp : Aug  3 23:28:12.533 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:45:02:21:00:A1:FD:51:81:85:E0:57:40:09:A1:99:
                27:EF:03:CB:4D:A5:02:52:23:FA:62:BA:35:CF:3E:76:
                A1:9E:18:3F:16:02:20:71:8D:BE:97:F7:82:E9:03:78:
                10:3D:21:9B:31:B8:9D:42:58:A1:27:DF:DE:B0:78:73:
                5A:AB:CD:90:B0:42:C1
Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
                F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
    Timestamp : Aug  3 23:28:12.535 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:44:02:20:33:AB:15:15:9F:01:0F:56:DF:72:BD:7F:
                EE:7A:04:8F:AD:59:B8:3F:00:37:4C:13:FA:5D:B4:DD:
                D7:F4:58:0C:02:20:15:67:79:2C:4F:B1:E2:DD:60:F0:
                37:EA:1E:AB:A4:A9:E7:22:93:82:5C:0E:48:41:2E:78:
                2C:13:66:C2:89:1F 

Certificate in PEM Format:

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

Related Certificate(s):

ID      Subject          Issuer           Expiration Key Identifier   Relation   
        ftp.gnu.org      R11              2025-11-01 C271B3F275B9C64… This Cert
        --------------------------------------------------
23346   R11              ISRG Root X1     2027-03-12 C5CF46A4EAF4C3C… Parent Cert
27766   ftp.gnu.org      R11              2025-07-04 56646C1B4880114… Same Subject

Public Key Detailed Information:

Key Details:
   Type: RSA
   Size (bits): 2048
   Modulus (n): 
b8597be0bbbfebe03ebe823e8ed9dc07a14c3038a791fe45126eb51f4ce6ace2
dfc4bf4326b657e09912bb2358bf9f7169a07d50bf7ee5d02e9032ac2fad65f1
9d3f82899151c9a44ae23e20345903d429eccd6721e753326b6586f44b5d55ae
49812c8eaaa42f2894805de8eab70ac9c27443dfd427e567316038e76a8484d3
0cbd47c2b0a18b3fe234ef3b0d0a7203dacea76e8803e0268a7f3e31c89d90c8
9e850a334df3a2b52eadb94be6e2d41d5d45152ecef93d0caae4fd3f1eff5ad5
049e1214fa5c7600a9085a4c49f60605205c486bb7bbb57644b2eb32bbbec5f9
11d48d80920e2fe76aebe0d83e0699f5f0d708fe3ee315041b021f970fd65097
   Public Exponent (e): 65537 (0x010001)

Public Key in PEM Format:

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuFl74Lu/6+A+voI+jtnc
B6FMMDinkf5FEm61H0zmrOLfxL9DJrZX4JkSuyNYv59xaaB9UL9+5dAukDKsL61l
8Z0/gomRUcmkSuI+IDRZA9Qp7M1nIedTMmtlhvRLXVWuSYEsjqqkLyiUgF3o6rcK
ycJ0Q9/UJ+VnMWA452qEhNMMvUfCsKGLP+I07zsNCnID2s6nbogD4CaKfz4xyJ2Q
yJ6FCjNN86K1Lq25S+bi1B1dRRUuzvk9DKrk/T8e/1rVBJ4SFPpcdgCpCFpMSfYG
BSBcSGu3u7V2RLLrMru+xfkR1I2Akg4v52rr4Ng+Bpn18NcI/j7jFQQbAh+XD9ZQ
lwIDAQAB
-----END PUBLIC KEY-----

Identical or Similar Keys: We found that the public key in this certificate matches key(s) recorded previously.

ID      Type Size Pri/Pub Key Identifier   Date       Comparison 
31984   RSA  2048 Public  C271B3F275B9C64… 2025-08-23 Same Key ID