DV SSL/TLS Certificate for atope.cz

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the atope.cz DV SSL/TLS Certificate

This certificate with serial number 06:3b:46:24:53:76:de:5d:b0:2b:07:7b:55:0c:42:a3:f4:99 for atope.cz 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 atope.cz 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): 06:3b:46:24:53:76:de:5d:b0:2b:07:7b:55:0c:42:a3:f4:99
Serial Number (int): 542843609814146439802964042333506580509849
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 50:bf:b3:81:c6:ef:f4:a6:b5:f4:9f:06:7c:46:fc:66:c0:27:be:e9
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): d1:49:83:f7:15:4c:ce:d1:94:ee:ac:5f:1e:70:16:d0:08:43:6f:22
Fingerprint (SHA-256): fd:02:49:c9:76:65:08:0a:62:fa:a7:20:23:f5:25:17:7a:c3:8e:12:04:98:28:81:98:b4:8f:cc:e7:a7:6b:cc

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/26.crl

Check the revocation status for certificate atope.cz
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for atope.cz

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 atope.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE+TCCA+GgAwIBAgISBjtGJFN23l2wKwd7VQxCo/SZMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNSMTEwHhcNMjUwNjE1MDcxOTE0WhcNMjUwOTEzMDcxOTEzWjATMREwDwYDVQQD
EwhhdG9wZS5jejCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAL7x6do5
qYwCo/ZIfb6iz2qo5QjzVqtQPMY8m+xrdJMPrNjgrNlVbMIcw71lQILH4/bcCDkx
8u9mQ8Ryhg0NR2dYS0I5fE3kN2zyp1+R4Kd5ByWLX7s6sCQw/6eGh48q+ajcFmjh
uBX1bYWSGzFHkDgOnTkG9yHHcA6mYTH0IbqAesG8aPB3Xcqp8Q58X3nuP8lf0mwq
9b8cfrCjAlmnYiNDVHDsqEfM/XdZ5r8k4CfA17qh2ruVCgUya9Y7BtwcvEmt+GPB
vlh8bUExLb2BMu8T7+MB9gz3iBDQ63kUbrDvJzT1UCKT2u5lKUYMuSTJ+uTSg9PJ
uSMpqnMhYtmCj7sCAwEAAaOCAiUwggIhMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE
FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU
UL+zgcbv9Ka19J8GfEb8ZsAnvukwHwYDVR0jBBgwFoAUxc9GpOr0w8B6bJXELbBe
ki8m47kwMwYIKwYBBQUHAQEEJzAlMCMGCCsGAQUFBzAChhdodHRwOi8vcjExLmku
bGVuY3Iub3JnLzAfBgNVHREEGDAWggoqLmF0b3BlLmN6gghhdG9wZS5jejATBgNV
HSAEDDAKMAgGBmeBDAECATAuBgNVHR8EJzAlMCOgIaAfhh1odHRwOi8vcjExLmMu
bGVuY3Iub3JnLzI2LmNybDCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2AKRCxQZJ
YGFUjw/U6pz7ei0mRU2HqX8v30VZ9idPOoRUAAABl3KqewEAAAQDAEcwRQIhAN4j
jSmKqvEGTYbpfZRj7EEywrkiVUS6tUnLWzW2DayNAiAm+c4TZwl5nGj6IxaVIHAv
aVRM1SAgrIboH/PnU/RKtAB3ABLxTjS9U3JMhAYZw48/ehP457Vih4icbTAFhOvl
hiY6AAABl3KqiqwAAAQDAEgwRgIhANFxmMekUUlVKxrvF1RWBYAvtb3DnUEqSCav
/IiJEBBUAiEA6gxwg8i2of72k46mQNRbxsp8KCTOwN5z1dSjHLacXUUwDQYJKoZI
hvcNAQELBQADggEBAB8VNoFqJ8jGoZe6brMUhemKSMAdd4fKVP0kRpI3Pc2jB5ax
QpyN+W2T7HS1YQvo/tw9HiLnw6dRIvJlo02UZ4NtZFNz5K0SCGb+iPNTo4UR3c6j
VJiq5YkbaMrIv98/5fCXyV/HUOyuMIByFpnIZgvMME9XU/t9l/d04ds7EODVzIVO
ndpATsvweOlKmiIWXrETdgioT5H9tghNyHv07eLIjiDk0QMjzJSb/xkdZ5cGsneJ
7EK6GalyydC68QOBUYniamwKf/NCK5xtXLBxGxBAsET6RyDDT0TMJxGev3mz9cPD
gi4kkUYZV1Mn5xrg0u5equ5zpOYlLxZspkuJoQo=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvvHp2jmpjAKj9kh9vqLP
aqjlCPNWq1A8xjyb7Gt0kw+s2OCs2VVswhzDvWVAgsfj9twIOTHy72ZDxHKGDQ1H
Z1hLQjl8TeQ3bPKnX5Hgp3kHJYtfuzqwJDD/p4aHjyr5qNwWaOG4FfVthZIbMUeQ
OA6dOQb3IcdwDqZhMfQhuoB6wbxo8HddyqnxDnxfee4/yV/SbCr1vxx+sKMCWadi
I0NUcOyoR8z9d1nmvyTgJ8DXuqHau5UKBTJr1jsG3By8Sa34Y8G+WHxtQTEtvYEy
7xPv4wH2DPeIENDreRRusO8nNPVQIpPa7mUpRgy5JMn65NKD08m5IymqcyFi2YKP
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 542843609814146439802964042333506580509849
 . . . . . . . . [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 2025-06-15 07:19:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-13 07:19:13 +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 'atope.cz'
 . . . . . . . . [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 24104569929621713839840302686002870066177934650367345000959540020995287750295038972837446309809894870842195806100276040752560621632154811194629338756001522689000003032934767689725028946423656862740412024255105601106265480379114530472184835015960084583432031024852714911981769930636759903910898322564383051223951484465766952608859354793625539293631742385673053697523020430680841672434487203514110561726649194525448480430695962990253748372805535855273450178731253725137626114358877044415689205327385334599332444949731992268801382038213986644849906120416104459905310855059055843769999101879320332016555237724337408741307
 . . . . . . . . . . . . . . . . . . . . [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)
							50bfb381c6eff4a6b5f49f067c46fc66c027bee9
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.atope.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'atope.cz'
 . . . . . . . . . . . . . . . . [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/26.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a84540000019772aa7b010000040300473045022100de238d298aaaf1064d86e97d9463ec4132c2b9225544bab549cb5b35b60dac8d022026f9ce136709799c68fa23169520702f69544cd52020ac86e81ff3e753f44ab400770012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a0000019772aa8aac0000040300483046022100d17198c7a45149552b1aef17545605802fb5bdc39d412a4826affc8889101054022100ea0c7083c8b6a1fef6938ea640d45bc6ca7c2824cec0de73d5d4a31cb69c5d45
 . . . . [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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