nirkko.ch

Issued by R3

About this certificate

This digital certificate with serial number 04:d0:b4:ac:7d:43:4e:19:f5:46:1f:2a:b1:c9:df:26:ce:39 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=nirkko.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d0:b4:ac:7d:43:4e:19:f5:46:1f:2a:b1:c9:df:26:ce:39
Serial Number (int): 419468032701530798391451683956488814382649
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c1:41:be:7b:25:78:e8:de:dd:71:8e:47:eb:b4:a1:1f:27:ea:39:37
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 8b:55:66:b0:40:4e:fa:a1:d8:20:91:bc:0e:6f:0b:91:e9:e2:c3:25
Fingerprint (sha256): 46:22:77:36:65:d1:89:bc:38:92:fc:bd:ca:cb:5a:cb:11:a8:27:db:f4:f8:26:2b:b4:47:78:e4:4f:49:4d:1b

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

Revocation information

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

Check the revocation status for certificate nirkko.ch

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for nirkko.ch

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

*.nirkko.ch
nirkko.ch

Other certificates including the domain name nirkko.ch

(limited to 100 certificates)
nirkko.ch
nirkko.ch
nirkko.ch
nirkko.ch
nirkko.ch
nirkko.ch
nirkko.ch
nirkko.ch
webmail.nirkko.ch
nirkko.ch
nirkko.ch
nirkko.ch

Certificate

The complete raw certificate details for nirkko.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7JdeK2tp8LGYBn+AT5sC
73W4JcOoTkku+xX8xeDzKudE83La5Z5eBlq4wIFJZwBKATDNQSjdZxc6aa9vYdcN
J/+2uK5Eb1soJDryYsOGcC1yI/2e4jAp/zsuq25qdxpSXVDADngXdV36wWh9TxYK
OQ6YbiJubKAgHDFqe0ytPeyqjafxlSW4tkb4Ne804j8iwhNuwZgKWbfqOv90wldD
jHutkQHMoFORCS7H8mXMKtOEHOgGJPi7Mb0IqIANWhqZUjW+92Jd6h3ac5wJ1vUe
NEng968r6OvWifSsFcfLoF0OwDXFa+4nclMYeDFMEHiWdb3LGmmI/NUQu7Qyyxrc
GwIDAQAB
-----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 419468032701530798391451683956488814382649
 . . . . . . . . [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 2023-12-03 14:18:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-02 14:18:43 +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 'nirkko.ch'
 . . . . . . . . [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 29866882240795228328289347709716556394604546117848226992497206666598853839144301736521907089708861175344708137350456122621774502023095208646403250155373250975106871344228836088110019545532686349011040703374472488589204510021341758943392883109931851498631184188735537090165970669246599766131178465483600654284891131367918663167381510622627249840413907299921132845919549831145521063166196533684695150457951451174848440488182764211074882758426260280186992195663548621317735864194956851631122488329991415518063090031736751865102149299896863052141365329438150248451399561649897616143997545114527147328824913814195093036059
 . . . . . . . . . . . . . . . . . . . . [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)
							c141be7b2578e8dedd718e47ebb4a11f27ea3937
 . . . . . . . . . . . . . . . . [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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nirkko.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nirkko.ch'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c3042acb00000040300483046022100cf459045a26684d38e8c4a98586db8a1cb1e36225c2658706e540970c6fdf6fe022100eb5714e79e7016ca2cb8bd3cccce93c6a21f875bd4228458613f539dcff5869f007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c3042acdb0000040300473045022100a5ff91b5bc845d51af9f15cbb08ce6665ae1904e85469a9c264e4583d54ca7d70220028399cab5f146f90090847f7bce9c6baffab388fe94c3abfa3cf58ec228c6b4
 . . . . [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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