apps.szu.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:62:80:fd:7c:65:c3:ab:30:f2:57:1d:e5:75:91:32:b0:3f was issued on by Let's Encrypt.

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=apps.szu.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:62:80:fd:7c:65:c3:ab:30:f2:57:1d:e5:75:91:32:b0:3f
Serial Number (int): 294855987111179779703526243280925169463359
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 43:2a:79:de:0c:56:6c:50:8e:bd:56:c2:69:28:eb:aa:31:8f:d7:95
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7f:a1:7e:5a:5b:7b:9b:9c:80:1a:3d:68:f5:f1:65:9d:a4:6c:78:cf
Fingerprint (sha256): 88:e0:98:52:01:e8:32:9f:50:53:66:b5:3d:98:63:5d:e8:a9:dd:94:31:16:91:49:71:88:ac:d1:bd:f5:cc:e5

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

Revocation information

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

Check the revocation status for certificate apps.szu.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for apps.szu.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

apps.szu.cz

Other certificates including the domain name szu.cz

(limited to 100 certificates)
autorizace.szu.cz
mail.szu.cz
cejph.szu.cz
cejph.szu.cz
katalog.szu.cz
mail.szu.cz
katalogpers.szu.cz
autorizace.szu.cz
katalog.szu.cz
autorizace.szu.cz
earss.szu.cz
katalog.szu.cz
apps.szu.cz
cejph.szu.cz
*.szu.cz
katalogpers.szu.cz
mail.szu.cz
hygiena.szu.cz
mail.szu.cz
indi.szu.cz
cejph.szu.cz
mail.szu.cz
szu.cz
autorizace.szu.cz
epoz.szu.cz
mail.szu.cz
cejph.szu.cz
hygiena.szu.cz
katalog.szu.cz
mail.szu.cz
autorizace.szu.cz
hygiena.szu.cz
autorizace.szu.cz
szu.cz
katalogpers.szu.cz
apps.szu.cz
*.szu.cz
katalog.szu.cz
earss.szu.cz
cejph.szu.cz
autorizace.szu.cz
hygiena.szu.cz
earss.szu.cz
epoz.szu.cz
www.szu.cz
mail.szu.cz
apps.szu.cz
autorizace.szu.cz
mail.szu.cz
archiv.szu.cz
autorizace.szu.cz
autorizace.szu.cz
hygiena.szu.cz
cejph.szu.cz
szu.cz
autorizace.szu.cz
earss.szu.cz
apps.szu.cz
apps.szu.cz
earss.szu.cz
mail.szu.cz
*.szu.cz
katalogpers.szu.cz
mail.szu.cz
epoz.szu.cz
autorizace.szu.cz
hygiena.szu.cz
katalog.szu.cz
hygiena.szu.cz
hygiena.szu.cz
katalog.szu.cz
cejph.szu.cz
katalogpers.szu.cz
hygiena.szu.cz
katalogpers.szu.cz
mail.szu.cz
cejph.szu.cz
mail.szu.cz
autorizace.szu.cz
cejph.szu.cz
www.szu.cz
katalogpers.szu.cz
mail.szu.cz

Certificate

The complete raw certificate details for apps.szu.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMfyIMpCSGENVELCZAzB
Qt6+rZ3/HhrR437UD9UVBkLMjyvCarAJENZ0xCXAtLP7/ls3/bVCJzSvWH3KcKqc
pxswRzB+8/NgftOKO1armYCQH24ATXJGD90SgHjLbTRM9ON48To9VKj4S8AqTVm0
+FBE5ascDpV4nH0yPeuIabt219lH84Yv+wMAFTWQzv71+/BmxFX0UQKwfhnxh/zc
8CWXK0+CMNB+wDCf3ZJtn1iC2UJExkKzUZ3F9Q/3ITpc0DBOv8eOPSOEcqPeiCS0
/ZB1SzuTetpUatg7K2yWzakn3BpGK2vtC9pal3QgGLPvOzj9BMQlhSG7xQBsUfJG
/wIDAQAB
-----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 294855987111179779703526243280925169463359
 . . . . . . . . [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 2023-12-05 07:27:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-04 07:27:33 +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 'apps.szu.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 (rsaEncryption)
 . . . . . . . . . . . . . . . . [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 23326445068823462571922184285291108132680046405905525910627192335185716039498701988368965702372942803772068634427431982272358366100077860153146065202617563322261409480813395010690943016445425916288988604473319876114893510468967783304279601632807719049833364765794518684473096292883755476740816541980419577833950953041615895022902844184788823930203949406635462704771883393962266236999118887440002687325212546726948152809013238540741985701896848547185621988828687800670081167013179558663367088409268432397180982111410348993454610817481886019705966123830038559568538313100502085573008157139581245203265005029802470688511
 . . . . . . . . . . . . . . . . . . . . [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 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (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)
							432a79de0c566c508ebd56c26928ebaa318fd795
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'apps.szu.cz'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c3916f24a0000040300483046022100fbea4832f486fe466f4905c6645b9769895c5624407c0e1a75d23516be7b4556022100fcb5a461ff3f1381932b695bdf54a0b0fa0e524d604e78817a53433adb755936007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c3916f4ae0000040300473045022048faf81e8f18197ae9965905c81718af38e4fe7654b1d04a13af7fd69af6ccb3022100c87baf89b200234287b0a311e3ad6bc38ec74e0d25d74941ee969b51e888a74c
 . . . . [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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