old.stk.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:67:5e:0f:8a:ac:0d:a2:b5:1c:8d:e7:d4:3d:9b:b2:96:3f 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=old.stk.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:67:5e:0f:8a:ac:0d:a2:b5:1c:8d:e7:d4:3d:9b:b2:96:3f
Serial Number (int): 383623255648558297700460075631653715875391
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 0e:9d:74:75:c8:bf:56:94:a3:70:76:87:5f:9f:3f:47:d2:cc:2d:1a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 64:92:2d:40:34:68:32:5b:58:1c:bb:a8:20:0f:a8:57:4a:60:f9:1b
Fingerprint (sha256): ba:61:ac:57:36:1b:c8:9e:39:26:f1:9b:0b:e1:8d:4f:25:f1:be:17:0d:95:01:1d:c1:8c:6b:08:4c:93:fc:ba

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 old.stk.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for old.stk.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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

old.stk.cz

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Certificate

The complete raw certificate details for old.stk.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 383623255648558297700460075631653715875391
 . . . . . . . . [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 2017-06-30 21:06:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-09-28 21:06:00 +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 'old.stk.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 835961466214412809642019747097586622481854208058875716309525629023558964385751851837745175914040061863588661739810029094416632044502575682310375604113983370184466916126637928269060371679403533193446301365260980102030738097511119659553618449771814647931285553729841132879129730833990616458773754326649412172777381260821536868415360074661302037300771145278759439662773402347747461670984979027040027848411131629917409102860862741008788527359257498908124696637298212280565159892120216397136463292059648698357068344891888848078539662771830258231267810694351876355837110396570919152622465955190548374314118884937758475875040930548221947880564341167923702949636275712427501797020485120460422592500006136973437095778931324991622082672368794086617666148907643299623835608990964483281917474370679349132699983011230975183802440338666113764368886542272841268691930366123070708050231016358388665837253979617907470628870969939837698214472715607843807265336286350641209866587919571672878819678589228257653018420115002806630443371772090280183334020054740072268124914855837415678737462809682611442226812567949367512065770022216064117350279587497383269371291169607862363136247080489853791184213094290476510760167904404803085506590860955732708228696597
 . . . . . . . . . . . . . . . . . . . . [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)
							0e9d7475c8bf5694a37076875f9f3f47d2cc2d1a
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'old.stk.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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