DV SSL/TLS Certificate for eknihovna.bpa-brno.cz

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the eknihovna.bpa-brno.cz DV SSL/TLS Certificate

This certificate with serial number 06:d1:4c:07:c0:3b:e3:bc:7d:cb:28:7a:8c:5a:92:36:42:52 for eknihovna.bpa-brno.cz was issued on by Let's Encrypt.

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 eknihovna.bpa-brno.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:d1:4c:07:c0:3b:e3:bc:7d:cb:28:7a:8c:5a:92:36:42:52
Serial Number (int): 593893791849762868552512045418965844247122
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 6e:0e:9e:f3:a7:d5:3b:4c:fa:a7:7c:3d:f0:ac:0e:ba:e7:00:a4:a2
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): 22:f6:93:da:77:10:09:17:74:e6:36:aa:da:f9:a9:77:1b:e0:1a:38
Fingerprint (SHA-256): 64:e5:0b:ea:a8:f1:f9:23:24:18:48:9a:bf:37:ed:6e:17:4f:e4:e5:e2:c5:a5:f3:61:f0:27:85:5e:a0:17:f7

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/83.crl

Check the revocation status for certificate eknihovna.bpa-brno.cz
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for eknihovna.bpa-brno.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

eknihovna.bpa-brno.cz

X.509 Certificate

The complete raw X.509 certificate details for eknihovna.bpa-brno.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtflcbUMUJr7A5U45fhPx
quHhsq1RexouWG9GHk+2k1OkIaiJhTwz1m+ncg/RudrqZXhy1TVtw8noA6nztdgd
yqOM9fh3o0ZO2PtytVYKaDpFMtovpAJeAqFf26eCI4SWfeusmpN5lZoFxeM+Gsfg
PMuJAIV3tIxNQPtQU5buQURC9/khlLZeBPsg/aegDhU6PzPmnC2P5ek2+BMZIlYk
VXxDv4Rn/FpMENLlNM3gcPDo7AQ9OZVv1nq3EsHKVtFePr9dHmQdkmDiAW0ViPVn
/pxi/DMWurCRNekyTsZFT0V11wB0tVwlEcWdr29JXABcGCjLWwug/k+55DnkpXin
XwIDAQAB
-----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 593893791849762868552512045418965844247122
 . . . . . . . . [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 2025-06-02 21:13:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-31 21:13:48 +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 'eknihovna.bpa-brno.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 22972097711718649156347589108111833309010354333004904561330930391693383542631172542040998917046925253474700852414046451572068595698042021429595343890376816403329083099636291831911147395889378543203016487079332187193427257368840966510004883631605898539587770754375216890242230983800490614066163002299153107057444121283709784858390620250008915120393991628383036354386488513832658862964443016554295385493960110127553078164799899051952777657924035956711597686084446254666228425183802879463703082127557708360655038789932377838755769214332123511053694809514927375000471308514595288990866141321317631744753365201579882882911
 . . . . . . . . . . . . . . . . . . . . [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)
							6e0e9ef3a7d53b4cfaa77c3df0ac0ebae700a4a2
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'eknihovna.bpa-brno.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/83.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)
							00f0007600ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe00000019732b3e36100000403004730450221008d8f70532c14a3d20a5598eb9fc1ab7ed24c756a3fe0f5f5be7f330a1bf7d58a0220204c89e9c9d1a833404dbe1caa4ace71536ea92139db13090068150962faad8800760012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a0000019732b3eb350000040300473045022100ac66f4ba31d7f4084048ce27a35a28deaaa91f26c5744be6f600abedfd06062102204dbca6812f9dde94ca13ed083470f867bda79083c956d3c265a406715c183ca8
 . . . . [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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