fsmed-koeln.de

Issued by R3

About this certificate

This digital certificate with serial number 04:c0:fa:1c:55:cb:79:68:e4:b3:b2:c2:d1:97:29:67:3e:7c was issued on by Let's Encrypt.

With 4 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=fsmed-koeln.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:c0:fa:1c:55:cb:79:68:e4:b3:b2:c2:d1:97:29:67:3e:7c
Serial Number (int): 414115812299245147310138748869557615017596
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 19:c0:40:01:d5:e4:a0:c2:46:6c:53:3b:92:0f:68:e8:16:4d:2a:e0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 26:26:8c:cd:41:63:04:cd:ff:cf:c5:d6:5d:97:aa:b0:b0:a8:86:bb
Fingerprint (sha256): 8f:37:7e:0b:b3:d8:a9:43:f7:b8:8f:11:b3:52:a9:b4:e9:58:f8:c2:d1:36:9d:8a:c0:ad:22:c8:2e:f5:f9:ce

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

Revocation information

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

Check the revocation status for certificate fsmed-koeln.de

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for fsmed-koeln.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

fsmed-koeln.de
fsmed.uni-koeln.de
www.fsmed-koeln.de
www.fsmed.uni-koeln.de

Other certificates including the domain name fsmed-koeln.de

(limited to 100 certificates)
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de
fsmed-koeln.de

Certificate

The complete raw certificate details for fsmed-koeln.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8e+A5bV4DBQLD1U2a93NiRyDUIS4qVS2
saaCG/FElcDivkC7h25VW7vxvUdqq/xZ9OiNebApmqpSzOikY2GEbBFD0s6LQPE5
QMwZgK4mjeTdtel77866yBTRqvgEFKu1
-----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 414115812299245147310138748869557615017596
 . . . . . . . . [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 2023-11-16 05:25:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-14 05:25:08 +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 'fsmed-koeln.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)
				0004f1ef80e5b5780c140b0f55366bddcd891c835084b8a954b6b1a6821bf14495c0e2be40bb876e555bbbf1bd476aabfc59f4e88d79b0299aaa52cce8a46361846c1143d2ce8b40f13940cc1980ae268de4ddb5e97befcebac814d1aaf80414abb5
 . . . . . . . . [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)
							19c04001d5e4a0c2466c533b920f68e8164d2ae0
 . . . . . . . . . . . . . . . . [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 (82 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fsmed-koeln.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fsmed.uni-koeln.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.fsmed-koeln.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.fsmed.uni-koeln.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bd6ce0e14000004030046304402202d378bf0d04516847404c32cb4dc9a8ea942326eb3c4a9fabddacd2d047be37d02207c6573c06dbe96ad1f6d71c3c9e01103ad87da2ba080336a0675a60d5d83c70400760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018bd6ce0e480000040300473045022100ec35c284df60df0afdf737c8d818bb9cecc27143fb618af028f6f8b59e788ac602206b8b96ca019cae0cc128d8363670034e8364347b29d313cd169208e336c7eeee
 . . . . [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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