skola-agc.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:0a:9b:0d:16:32:9e:ea:ec:ab:4e:9a:da:4e:47:a4:4a:ed was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=skola-agc.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:0a:9b:0d:16:32:9e:ea:ec:ab:4e:9a:da:4e:47:a4:4a:ed
Serial Number (int): 352058065685679796178070680899197906209517
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 4c:1b:5f:4a:5b:5e:d0:35:b5:e1:ef:5e:8b:6f:f7:c5:29:89:45:a1
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a8:f8:55:53:cb:f2:71:2c:3e:59:7b:ac:c6:f2:dd:9e:d8:c3:76:8f
Fingerprint (sha256): cf:75:f3:c4:10:95:75:ed:fd:09:50:94:5e:10:17:5d:ea:0f:3b:86:9e:cd:85:fd:87:e0:99:bb:2d:19:df:20

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

Revocation information

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

Check the revocation status for certificate skola-agc.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for skola-agc.cz

Public Key Algorithm

RSA

Key Size

4096

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

skola-agc.cz
www.skola-agc.cz

Other certificates including the domain name skola-agc.cz

(limited to 100 certificates)
bakaweb.skola-agc.cz
skola-agc.cz
webin.skola-agc.cz
skola-agc.cz
bakaweb.skola-agc.cz
skola-agc.cz

Certificate

The complete raw certificate details for skola-agc.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 352058065685679796178070680899197906209517
 . . . . . . . . [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 2023-09-26 01:56:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-25 01:56:32 +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 'skola-agc.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 771242103555010092165330578867661491123221674407553037298010052674218902787216661480999261480233756371421949936609936958853427002297497287146590474094817515328606359383666584380550804241267617044821014585756203620386845453964340618143758536230339044648063402808995135840418453084244077892424823630907054172624105453882988319382824660527145353235290653555696480026730608697400444419580450164552580109282824479108445035354808446274431221887303867643656807378841961348225796005615776214752667972504739439146812479345318891192120847740702996376207977487572186208450541491645236044528421866351651318489798512198360981685035155921626015704317277840659994753833305050289075281597877334655085419277207806576270506919854362931726504110591827293016130040845414258299924011613133625887355847038678981210497879403362370113989647440634058502145311265350167609834208143490313342695400856052283060733659061395361536025724376860704056060666441424257734153345414751493011407998189668264487565838398092907048307906118810909007659208931300723905099420386776709822321845769461958036819034821471239678100452469476034427706121233139470460113737357746153413685705958808417548173662919224983366730241388047020834284069873547129446973370156340710877751974791
 . . . . . . . . . . . . . . . . . . . . [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)
							4c1b5f4a5b5ed035b5e1ef5e8b6ff7c5298945a1
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'skola-agc.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.skola-agc.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)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018acf6abcbe000004030047304502201f966f2bf290ccb9287026389d411a1e8c22ff715de5abcc424f2f3876e8eaec022100ece69470298d578a35e7547f525ecfde97acdd88629f67c57e7a3d8c55609b30007700adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018acf6abcfd0000040300483046022100e5f5bc1de0cee47ee8289f6ab0b89267436f2fc33e931700dbd62e4d6a2e3cd4022100acc00be13727dc1f8db94c95a333abc83e69a965c16c987bbb9e6bd91922393f
 . . . . [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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