apps.szu.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:4f:d5:64:72:99:1b:81:60:1a:3d:2d:4c:fb:c6:fc:01:d6 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): 04:4f:d5:64:72:99:1b:81:60:1a:3d:2d:4c:fb:c6:fc:01:d6
Serial Number (int): 375615097830908281945293540502187863179734
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 76:20:3d:eb:cc:58:f3:6f:a8:91:2e:f6:a6:d3:e4:a5:50:5d:87:d3
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ae:f5:59:5d:6d:b8:1d:0f:22:97:35:52:77:da:0b:91:71:6b:0c:b3
Fingerprint (sha256): 68:cd:3e:70:bc:27:42:3b:05:1d:ea:f6:ce:03:5b:e8:2b:96:8a:21:ba:58:ae:81:16:4e:6e:b1:02:30:de:42

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8qU0xju0K/18uR/9FyUQ
IMyZPudKDSln+VlnasXnlc+6Eh4C75PKy4urJwpdT5Yg5IfImPXno3/ujFhywN80
79vo+njcamyPZgw1LtAaofX3Uuhg5VdgMD2glVgPZAJwCc5lFNgimi2DRCkVw24K
NVgyHFQJmpxbl9ZyYLLz/3sMRjznur2xhtLzmoRfnKAGtDEIW2VN4+09hGOiVmX9
NIbNiS/E9QduaGOD2Q363CB9zS5cBuPSXm+N8l3nEZINcSVs2UyMnKyiIXQvOjgP
vTHIyWfm+JKux/WiZ0XJ5RX8JL4nMnh12P+Q5hx7uTczW2i28lsDWgtZelE5V1CY
xQIDAQAB
-----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 375615097830908281945293540502187863179734
 . . . . . . . . [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 2024-02-03 14:26:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-03 14:26:37 +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 30631135990538438905870892303153681838907437630684875632636093243032139403614358726665631858693310363021395496498283025152554369906008180238504042679524071672919794627138609614798215065295397415860955441075440190794419539088431698250765196575806756094540523738184973615416399789650306850517712175362417298418349336783512594762834152789446544255592204911799617182134162899859046227086061895962938179001253056146846373683809452006953146654434513547809056847885364578941774771245383868332273399479773614573838787076144028184780385505690917838712243713734621042552286528063205040737213012636412797387842153084053129042117
 . . . . . . . . . . . . . . . . . . . . [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)
							76203debcc58f36fa8912ef6a6d3e4a5505d87d3
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d6f942d91000004030047304502200eed7fd7239d120d1a574c004fe23274013c9b57be767f3d51bc15b08f6860ab022100ffee89dbd9fff1c806552f972790d26e27d1ff678059bb16fc6cb07b729d8d83007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d6f942d960000040300463044022026347ab6ac2fef2c3535633f496a4dce6c37cb8646ccfb5264727558cd84b1580220097cf182b6b13667b73bb8e14f9d37817744bee4c1ca4332f0207eb5890acdff
 . . . . [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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