krejcovstvi-vyvoj.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f7:32:33:5a:e6:60:c5:94:e1:8b:c7:8e:7e:4d:ad:78:7c was issued on by Let's Encrypt.

With 5 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=krejcovstvi-vyvoj.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f7:32:33:5a:e6:60:c5:94:e1:8b:c7:8e:7e:4d:ad:78:7c
Serial Number (int): 345453330475350862614510750018941160880252
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fc:8a:44:c0:1b:5f:b9:1f:95:4a:50:d7:04:89:9d:6c:eb:ad:18:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 5d:68:e0:92:95:c2:f7:3d:06:8b:f2:cf:0b:6d:91:08:3c:e1:2b:a7
Fingerprint (sha256): 64:55:d9:47:97:bc:6a:45:65:41:c0:01:e0:2c:4e:63:6e:71:cf:5d:4c:6e:e8:76:af:eb:31:c9:6e:d1:92:61

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate krejcovstvi-vyvoj.cz

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for krejcovstvi-vyvoj.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

jidelna.vyvoj.cz
krejcovstvi-vyvoj.cz
vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.vyvoj.cz

Other certificates including the domain name krejcovstvi-vyvoj.cz

(limited to 100 certificates)
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz

Certificate

The complete raw certificate details for krejcovstvi-vyvoj.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqT5qUT+9hvS2WtS5BKPl
Ay3DzmrIkTBhGBqrtC8GU59H4CDc1kt1iIIOKW+5KesInhggC9xUUXvnp+770y7v
AuRAKfrPPBw/T+SvhNZZGdgZ/O+JpkKYAUksN7ljkV7mZhXV+qdwzWL7cgdhelNg
7WYcrDrwGUmm8imCuzaBPXtQvYB1xoAIZrAKTT4AojMUJlaz7/b+302LfDFchuPY
nYf95TF8D7l/MOdHSeKFTViHj03QaTIh4p7TzqFb55Py3oHR3fxnGLHQbV8naok1
5QlGLSAMDmXHTnjYD/JVHtRVQ02TskdhmuTG1CzlDfEfOVQrBShnYjtsGfbfsiuw
wwIDAQAB
-----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 345453330475350862614510750018941160880252
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-24 11:25:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-22 11:25:41 +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 'krejcovstvi-vyvoj.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 21365051671925586127381912932706656345954576516937617955865860030670623193292475288250522826644015666454900119871635549990899111501312486177493407169359579991661054574988401487858847375439940995457251158101984577690655780012008253739672171360111491168250441466366489840072815371601115312505474916433177443422832530062678151259634643099809422526285590240509490598408371012966922658777166032112465853065064893875040741751052825566105098240848268678289145559625631885685719099515759503933659973787292599117132824640978895387440668560203098080879823442814303858702989880246780628496964842672839051877308582484835729912003
 . . . . . . . . . . . . . . . . . . . . [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)
							fc8a44c01b5fb91f954a50d704899d6cebad18b9
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (92 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jidelna.vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'krejcovstvi-vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.krejcovstvi-vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.vyvoj.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016b8972f6520000040300473045022100e1ba039cb45978f394869f95d2f11200227ad385d28049c6dcf85f8a0091ad120220661959675bcf247abda08d129efc339911ac99ec0b76b0ac3be137da24084f4b00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016b8972f66c0000040300483046022100cc2bca70420c276ddcf7977fba7916e2b39a23e60341440b84b1c23acda017ac022100f9cfdc2582606ce31472747a01f9f54a1ffdb0db02bb19d4755606ab03ef6465
 . . . . [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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