Certificate Summary:

Subject: R13
Issuer: ISRG Root X1
Expiration: 2027-03-12 23:59:59 UTC
Key Identifier: E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33

Download and Install

Received at FYIcenter.com on: 2025-09-06

Certificate Detailed Information:

Name:
/C=US/O=Let's Encrypt/CN=R13

Subject: 
   Common Name (CN): R13
   Organizational Unit Name (OU): 
   Organization Name (O): Let's Encrypt
   Locality Name (L): 
   State or Province Name (ST): 
   Country Name (C): US
   Email Address: 
Issuer: 
   Common Name (CN): ISRG Root X1
   Organizational Unit Name (OU): 
   Organization Name (O): Internet Security Research Group
   Locality Name (L): 
   State or Province Name (ST): 
   Country Name (C): US
   Email Address: 
Valid From: Wed, 13 Mar 2024 00:00:00 +0000 
Valid To: Fri, 12 Mar 2027 23:59:59 +0000 
Serial Number: 119635429456979344322213464088047616773 
Hash: 4260b799 
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, Certificate Sign, CRL Sign 
   extendedKeyUsage:
      TLS Web Client Authentication, TLS Web Server Authentication 
   basicConstraints:
      CA:TRUE, pathlen:0 
   subjectKeyIdentifier:
      E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33 
   authorityKeyIdentifier:
      keyid:79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
 
   authorityInfoAccess:
      CA Issuers - URI:http://x1.i.lencr.org/
 
   certificatePolicies:
      Policy: 2.23.140.1.2.1
 
   crlDistributionPoints:
      
Full Name:
  URI:http://x1.c.lencr.org/
 

Certificate in PEM Format:

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

Related Certificate(s):

ID      Subject          Issuer           Expiration Key Identifier   Relation   
        R13              ISRG Root X1     2027-03-12 E7AB9F0F2C33A05… This Cert
        --------------------------------------------------
11138   ISRG Root X1     ISRG Root X1     2035-06-04 79B459E67BB6E5E… Parent Cert
11467   ISRG Root X1     DST Root CA X3   2024-09-30 79B459E67BB6E5E… Parent Cert
32085   www.mcafe.com    R13              2025-11-23 1B1CE285FCDB656… Child Cert
32166   bergerbv.nl      R13              2025-12-29 D0FD891C8DAD92E… Child Cert
32216   nemotest.ru      R13              2026-01-21 46118DC79037AB0… Child Cert

Public Key Detailed Information:

Key Details:
   Type: RSA
   Size (bits): 2048
   Modulus (n): 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   Public Exponent (e): 65537 (0x010001)

Public Key in PEM Format:

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApWdwjdBWgWQVF2HNuQbU
rRmQjCZQN5gWY5JU29nMhAWT7NPsCBugYFFDSH0rx0iWnrQt2p3IJztXoZ+r8NYO
1A4wym+bsdHWpJ0yPlhONW9FWGhxF/w+2F2CoC+yUWywGl24Wc41ZciLoa8QN//j
nF3CSRc0/4wri43wvHEskwwdBcS6x82qyV580ckB95wD9vwKXfTae+bbdkJw6/RN
ItoAd2/WyV8X/dp1LqVXDPbqXLbgc6Voz6F04nWCfhCfwfWi6wHpOLEKRMzTwon1
STWCCjSzHOmIwkdOgg4KNvBHT4rxKQR12s3hmlz/Xp2YlbqaQ9BKohcFAQQw0zKz
jwIDAQAB
-----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 
32088   RSA  2048 Public  E7AB9F0F2C33A05… 2025-09-06 Same Key ID