DV SSL/TLS Certificate for sg1990koeppelsdorf.de

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the sg1990koeppelsdorf.de DV SSL/TLS Certificate

This certificate with serial number 06:71:57:71:44:3a:87:45:1e:44:e3:b3:fc:6c:34:b7:e0:da for sg1990koeppelsdorf.de was issued on by Let's Encrypt.

With 3 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for sg1990koeppelsdorf.de provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:71:57:71:44:3a:87:45:1e:44:e3:b3:fc:6c:34:b7:e0:da
Serial Number (int): 561241854001646778876859519036355627180250
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: f2:b5:8f:bd:c7:d0:4a:fe:2f:51:be:de:28:5f:ed:c7:85:c9:c9:25
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): 3f:2e:f2:ce:99:2d:44:a8:1a:90:64:9d:39:fe:ff:f4:4b:d2:50:c4
Fingerprint (SHA-256): 69:b2:29:74:2c:c7:d7:1a:da:17:17:e2:4b:0d:62:4d:95:82:45:10:20:c9:69:35:1c:a6:fe:90:52:32:ed:be

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/91.crl

Check the revocation status for certificate sg1990koeppelsdorf.de
3
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for sg1990koeppelsdorf.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for sg1990koeppelsdorf.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtkEvzZud4gAeV9P5RCh8
ZZAMmiHwKea88rmrwlPbHPJmfkBhawhtl2Z7h/2SkIx/srB+vJgOaTdf9lEySltM
PXOtHZdx4aXaqxKQb6oVpBibxipEHMlLrxVGdGBn/kQ5o56++CdjZAI9EJwpMPW2
5GTD+FaX1ke1tgZMc9FxE4ar8xClV6y5ktwUCq9++xz0wkAj9zK0UsIoqagEMQfF
NqvyPGENZwCqQNWWh2jBQXBBtD85CK2mNjceN/MiPOthT7AN/IL/04SRNyKKkCDM
tYlQ0cHqd+E3VAfe3KW3tQAkKBL++EzFGIzgwa8zJPDOldfqwpizULvHM0KAaTzJ
QQIDAQAB
-----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 561241854001646778876859519036355627180250
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-27 02:06:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-25 02:06:36 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'sg1990koeppelsdorf.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
 . . . . . . . . . . . . . . . . [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 23007516278969031694747367337867611560922520401659403369708150586658226338023038879845541904176821510999901836999803123096657101437395726341872621983245671141736367815213313850298117890094570890147229941478736469295734427674759677054603006745892562557789193868528704303999740716880647676543724550995180499328305141006178152811184980883529303523543835235971854992938368722324033036783641948801219552247724014706694986993736599496042237921650573875825143983246345042857435260937846998655850311866923773980841956243119605287031376634644826704344595729715410420481518237624333672364637072307965524785645487765989030152513
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							f2b58fbdc7d04afe2f51bede285fedc785c9c925
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (83 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sg1990koeppelsdorf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.sg1990koeppelsdorf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sg1990koeppelsdorf.de'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/91.crl'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a8454000001970fb37386000004030047304502203955b17bf3b620e92234b25503466837316bed50559dd443340235d6554db446022100f7a3b63ba0c60af74e9cb16c3db222b96a7718869fbe0e92e5f836ddc3bf74e4007600dddcca3495d7e11605e79532fac79ff83d1c50dfdb003a1412760a2cacbbc82a000001970fb373cb0000040300473045022100b7b51e74e131661f3700fec05b5700f7ef2869d623adfb997655f64bcc74e131022043d1e45764722ef0b8b4bedb842a95fd1edf28fd4aa82a4779095078d167bb7c
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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