www.cnguyen.de

Issued by R3

About this certificate

This digital certificate with serial number 04:3c:94:5a:b6:66:44:e7:30:c3:69:0a:73:0e:57:79:ff:6a was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=www.cnguyen.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:3c:94:5a:b6:66:44:e7:30:c3:69:0a:73:0e:57:79:ff:6a
Serial Number (int): 369063282491891874991843842943327237963626
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 86:88:fb:82:1b:91:b1:2f:60:b3:25:e5:0f:3e:1d:7a:c6:ad:d3:47
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e1:34:97:7c:c2:f0:eb:61:96:d8:5c:20:b4:c5:07:e9:28:5d:c1:57
Fingerprint (sha256): 7b:b4:53:8d:96:22:6b:49:fd:47:bf:b5:07:80:18:52:2b:6e:60:26:3a:d2:b4:72:0b:ff:54:7b:c9:47:a7:00

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.cnguyen.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.cnguyen.de

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

www.cnguyen.de

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Certificate

The complete raw certificate details for www.cnguyen.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqgmCU8t/stUdwq2a70r9
2A7jhhSno47y2E/gIyHPMxQ3CDrvcg9Ct+wDTWypWZzicdH/2zcE7U89eqdJdVfs
RFKOWzikBR1kv34ZolsU0uVBi4qK/q0WYuZho4qZYx68D0+ZTi1/hj9mp8IHaLrh
NfDOl+eY8TNSZXV6oLZTNDgO0WeAZS4RKVIAPlqM89K5eFGXEkbi/eElriL1oXq5
9OJpd7JJT4z7RWdLeaBSGa/cpdsZ0MeERueY2ZqL+21mXhxotaKhX9edJrFWYhS7
lj2+WPjkXQoZLdhzJrq97nHmmZdLPhEPpGUJWxUp9UK5K1NDk6VysfCLnHwwj52E
XwIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 369063282491891874991843842943327237963626
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-06 07:46:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-04 07:45:59 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.cnguyen.de'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 21465200951821230785536401087850451282250772771727276257477697572558187377797372676523123136015451281618758452280911391828605230463241046995088052688136023399108785121118349267821761250715950126260347667341508179667964512688093663513649642980953071705268691584940275526471651838663096596478295482235258377911861309339383285512876601677652746666299625588694670553225000976611913880885274596280367341516328631646876388102388348554907079758772078458884962918226619215531078866241886933304148676394728084951990691109635213645404574937972614977717988538441413438482773645683463001296251136863523526937995884578358599451743
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							8688fb821b91b12f60b325e50f3e1d7ac6add347
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cnguyen.de'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b042a436d00000403004830460221009a4a8d22a306d4646867b6ccdc0c411799cb45c352fcc572c63c26e2448a0626022100ffef27837758e889a20a1ef2770823eec04b24645e020eeb1b1cccc21817e7730077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b042a43620000040300483046022100fc0e652cd4da21738ddc898a5f97cce44b4843397d6d4c40a68ee0cd79978781022100ad71bf09be7e9004cd24d2cac3669f9cdd0cba5fcd4bfb3d57703e90c6daba98
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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