*.duckduckgo.com Certificate - 82116D403CBCB7491E1A0613FE101E8CEC6FCC16

A

Certificate Summary:

Subject: *.duckduckgo.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
Expiration: 2026-12-20 23:59:59 UTC
Key Identifier: 82:11:6D:40:3C:BC:B7:49:1E:1A:06:13:FE:10:1E:8C:EC:6F:CC:16

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Received at FYIcenter.com on: 2026-02-13

Certificate Detailed Information:

Name:
/C=US/ST=Pennsylvania/L=Paoli/O=Duck Duck Go, Inc./CN=*.duckduckgo.com

Subject: 
   Common Name (CN): *.duckduckgo.com
   Organizational Unit Name (OU): 
   Organization Name (O): Duck Duck Go, Inc.
   Locality Name (L): Paoli
   State or Province Name (ST): Pennsylvania
   Country Name (C): US
   Email Address: 
Issuer: 
   Common Name (CN): DigiCert Global G2 TLS RSA SHA256 2020 CA1
   Organizational Unit Name (OU): 
   Organization Name (O): DigiCert Inc
   Locality Name (L): 
   State or Province Name (ST): 
   Country Name (C): US
   Email Address: 
Valid From: Wed, 19 Nov 2025 00:00:00 +0000 
Valid To: Sun, 20 Dec 2026 23:59:59 +0000 
Serial Number: 3185016013468429106498951061209007937 
Hash: 1562cd7c 
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:  
   authorityKeyIdentifier:
      keyid:74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
 
   subjectKeyIdentifier:
      82:11:6D:40:3C:BC:B7:49:1E:1A:06:13:FE:10:1E:8C:EC:6F:CC:16 
   subjectAltName:
      DNS:*.duckduckgo.com, DNS:duckduckgo.com 
   certificatePolicies:
      Policy: 2.23.140.1.2.2
  CPS: http://www.digicert.com/CPS
 
   keyUsage:
      Digital Signature, Key Encipherment 
   extendedKeyUsage:
      TLS Web Server Authentication, TLS Web Client Authentication 
   crlDistributionPoints:
      
Full Name:
  URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl

Full Name:
  URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
 
   authorityInfoAccess:
      OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
 
   basicConstraints:
      CA:FALSE 
   ct_precert_scts:
      Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
                82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
    Timestamp : Nov 19 11:57:45.890 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:45:02:20:6F:7B:CF:A2:D7:E0:A5:AD:DE:85:0E:53:
                1C:E1:96:48:C2:57:9A:57:C1:AC:2B:92:D6:72:07:D5:
                81:7E:4B:1B:02:21:00:B8:4D:EE:C1:57:43:5B:C9:47:
                E6:7A:54:96:FF:6E:22:56:86:DE:72:CA:64:71:5A:EB:
                6D:92:14:07:04:07:01
Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
                C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
    Timestamp : Nov 19 11:57:45.939 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:46:02:21:00:B7:0C:06:78:CB:0C:D8:11:21:AD:75:
                D4:EE:B4:27:C8:39:39:01:B5:90:2B:5C:FC:7A:39:A1:
                ED:6B:31:EE:96:02:21:00:F0:7F:6E:E6:4C:11:67:E7:
                7C:09:5B:5E:27:DD:D5:3B:FD:41:FB:B0:BC:0A:7B:4D:
                0F:2C:1D:AE:77:D7:15:4B
Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
                01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
    Timestamp : Nov 19 11:57:45.959 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:46:02:21:00:9B:42:91:49:A5:70:3A:9E:E2:C6:BE:
                86:90:00:CB:BB:66:6F:AB:E4:1F:24:2A:9F:34:83:CE:
                73:D4:DD:8C:4E:02:21:00:E0:51:08:EE:FB:CE:61:5D:
                A0:84:ED:1F:79:08:60:CF:05:24:6E:AC:2A:11:78:B7:
                9C:85:2C:33:AA:F6:46:E4

Certificate in PEM Format:

Related Certificate(s):

ID      Subject          Issuer           Expiration Key Identifier   Relation   
        *.duckduckgo.com DigiCert Global… 2026-12-20 82116D403CBCB74… This Cert
        --------------------------------------------------
12843   DigiCert Global… DigiCert Global… 2030-09-23 748580C066C7DF3… Parent Cert
15603   DigiCert Global… DigiCert Global… 2031-03-29 748580C066C7DF3… Parent Cert
3369    *.duckduckgo.com DigiCert SHA2 S… 2019-09-26 A1BA33392A5EE78… Same Subject
9633    *.duckduckgo.com DigiCert SHA2 S… 2021-11-10 18569E397FC46C6… Same Subject
12948   *.duckduckgo.com DigiCert TLS RS… 2022-11-02 75F7230EFD1FDE6… Same Subject
14340   *.duckduckgo.com DigiCert TLS RS… 2023-11-20 B5FEDF207BC1357… Same Subject

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:

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 
32365   RSA  2048 Public  82116D403CBCB74… 2026-02-13 Same Key ID

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