DV SSL/TLS Certificate for cpt-couvert.at

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the cpt-couvert.at DV SSL/TLS Certificate

This certificate with serial number 05:c2:78:89:c0:3e:e5:d1:b6:8d:00:dc:d2:19:37:db:d1:9b for cpt-couvert.at was issued on by Let's Encrypt.

With 2 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 cpt-couvert.at 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): 05:c2:78:89:c0:3e:e5:d1:b6:8d:00:dc:d2:19:37:db:d1:9b
Serial Number (int): 501736431444833019892969987638733653660059
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: dc:2c:db:28:af:55:31:fe:7e:83:5b:2b:a0:f1:53:4a:df:10:ec:30
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): cf:24:82:03:6c:9a:5c:a8:11:13:6d:74:d6:a8:d1:27:67:aa:d2:2f
Fingerprint (SHA-256): 0f:68:5a:b2:44:48:90:1e:8a:d5:ed:f6:b9:30:6b:fa:58:10:4c:60:b2:84:f3:5f:96:f7:18:b8:1f:55:4d:b4

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/28.crl

Check the revocation status for certificate cpt-couvert.at
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for cpt-couvert.at

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Key Encipherment
Digital Signature
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 cpt-couvert.at in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApVxq0LjZi9crZR7krUcB
4C5nGqZYbLQ5MmtAYQZs5dUsr3Bt8jxgVK2zyDu+v9HwxF207pGnNS7PoTApL/Kq
lni+iNNAADEr4/IMmFrGzzP2qnEsT2DS3/Q+LTCCZ/EHA6v5d3XUrqG324le6BDv
ol64MKclXpaaYqPoMmT5cWu1hogIlILSUvWy4b6R8Ro0KYcSETiBsRqvm/lOOcXo
vB9tFkzmLSFNditps1Jh0E6ouEPMMjNVRmgAJRDHX3bD5Haqo8HdCdJF2cRXZTYF
uWSwYeUQNd8U0nzqXlynonvJPuBh4/0S6Imb7823mI7hjGel/Wp3zqSHpQyMusvH
UwIDAQAB
-----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 501736431444833019892969987638733653660059
 . . . . . . . . [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 2025-06-30 11:07:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-28 11:07:45 +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 'cpt-couvert.at'
 . . . . . . . . [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 20874892962581672449188100913951440114621163950312607183623395649951032910486790453591124548185805151169133983969510470047226708511891753065820413378162924369325867556225248050200033493383293200662496246064702570562614196736460788399392542166074618549869211444026633095541737875093723519565648863142616900643876784465195819882735873772633294337051962322368489356971411427000517674534591627928470498205825927639189488349672215190983997861459666211117370454859504405440946377505730158943795386488205176599117018419330022540549252919780829950793981966858169437229419692786644803412101458408137971394283767308441118033747
 . . . . . . . . . . . . . . . . . . . . [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)
							dc2cdb28af5531fe7e835b2ba0f1534adf10ec30
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpt-couvert.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cpt-couvert.at'
 . . . . . . . . . . . . . . . . [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/28.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)
							00f0007700dddcca3495d7e11605e79532fac79ff83d1c50dfdb003a1412760a2cacbbc82a00000197c0bb22f3000004030048304602210087b44fb76982e19407322bb38e5862a5ff7437f53d2c10eea6c0eb43efc98f560221008950d53e440bb447adc37a2a6759c25dc579f6e325740bfebdcfca408dc19573007500af181a28d68ca3e0a98a4c9c67ab09f8bbbc22baaebcb138a3a19dd3f9b6030d00000197c0bb1be2000004030046304402207ec85c23ea30b534021a8922d433e0033beae7f57b6047d10d6d9061056f1828022071d96a719a893233f63395bd52db1ac237ad2d52ffab73579c04093da195bb83
 . . . . [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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