www.learnisi.de

Issued by R3

About this certificate

This digital certificate with serial number 04:73:02:00:76:2f:77:7d:47:e6:2d:b9:bb:19:b5:e3:7d:6f was issued on by Let's Encrypt.

With 4 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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.learnisi.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:73:02:00:76:2f:77:7d:47:e6:2d:b9:bb:19:b5:e3:7d:6f
Serial Number (int): 387584276776025516757027277554421363604847
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 9c:72:6a:57:90:80:08:ca:02:fe:59:6b:1e:1a:cb:b0:09:b9:da:a5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a6:8d:2d:99:79:c4:35:2d:95:61:12:86:b4:0e:7c:19:ca:28:1f:ad
Fingerprint (sha256): 58:41:fe:aa:e8:8b:12:38:22:b8:f0:53:be:e4:44:51:b0:b3:9d:6d:b9:de:ab:f8:be:7a:d0:ba:7d:1b:8a:f8

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

Revocation information

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

Check the revocation status for certificate www.learnisi.de

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.learnisi.de

Public Key Algorithm

ECDSA

Key Size

384

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

learnisi.com
learnisi.de
www.learnisi.com
www.learnisi.de

Other certificates including the domain name learnisi.de

(limited to 100 certificates)
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
learnisi.de
www.learnisi.de
learnisi.de

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEI5kGt7HdZ4I60px8ZisYBcNCx2qKHEk+
XvoZ7E0a1YKl4uIu/2Rkb+k59ILTdyRPgLi1MQNKZbGhkS/Y9hS4eOESJ4/yIyat
zeHyMzGQUCdzKJKM6zfhGbg0d7fqJVTY
-----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 387584276776025516757027277554421363604847
 . . . . . . . . [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 2024-02-25 02:47:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-25 02:47:38 +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.learnisi.de'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.132.0.34 (secp384r1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (776 bits)
				0004239906b7b1dd67823ad29c7c662b1805c342c76a8a1c493e5efa19ec4d1ad582a5e2e22eff64646fe939f482d377244f80b8b531034a65b1a1912fd8f614b878e112278ff22326adcde1f233319050277328928ceb37e119b83477b7ea2554d8
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							9c726a57908008ca02fe596b1e1acbb009b9daa5
 . . . . . . . . . . . . . . . . [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 (64 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learnisi.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learnisi.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.learnisi.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.learnisi.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018dde6027f50000040300473045022100f68135756ad3ab131f3dd3ccd611968d2d7c5638afb9bf8e3a6eaa9f120b37b102202409dad676931db61beed0f4ebe7d657f3b8082996d4a5e7e7ec466b3ff3b80900740076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018dde60286d000004030045304302202d5f5a2b26f73f953e7f95767b40753becfb06b0d6cb13ddd3d49a787fbbfce6021f200221881af0e015262c278ccf52e0fb49f8bfd520987c4fd4829d9d65bff6
 . . . . [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)
		0011a1b9271861124e80f084e5d29c7b0d1364269e8389b0c2d2a7593ce8a6ec128db1627859bfdb8d1f77ba5bd952101c730b43af01cf869ccf51a5a3aa1ba850f7a8dcaeb51505d555ddc6809a42655b6ece33961ca1eff254e772c313ae6ab8cc884c7950dc1494365899e3def781ead7a3cb77add87651b446ab3046e17b68d6fe609df6e98bfa4d2a583561909ca543f99424bdbfba1ffb07ecbaa29759bae6d2a08e4f03cdb0e551b9a337e11d73a713509e99c75f693588508659b4cdbaf56f0a04759c51d22bed97b9e983f5c963e45d7e01822febc7045a8797922b38246caafb010f7df0ab9f3a8855385defd6ab2b77c0676b5438a61bdd1b862d46