old.stk.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:83:2f:a1:d9:03:35:6d:1a:32:a9:bf:69:f6:63:72:97:51 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): 03:83:2f:a1:d9:03:35:6d:1a:32:a9:bf:69:f6:63:72:97:51
Serial Number (int): 305977161939056896888954686085374586034001
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e2:69:7e:55:d5:da:6d:b2:2c:dc:a3:c9:c5:26:c9:cc:8f:35:9a:a9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 07:a8:10:91:63:01:d2:a8:cc:65:33:81:3f:50:b6:25:7e:d7:b1:60
Fingerprint (sha256): 6e:7e:1d:1a:d4:6c:db:f8:90:0c:25:56:52:d0:40:99:9b:31:86:ab:37:63:bd:52:47:84:39:3e:82:2e:9a:30

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

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

old.stk.cz

Other certificates including the domain name stk.cz

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old.stk.cz
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old.stk.cz
old.stk.cz
old.stk.cz
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old.stk.cz
old.stk.cz
old.stk.cz
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old.stk.cz
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old.stk.cz
old.stk.cz
old.stk.cz
old.stk.cz
old.stk.cz
stk.cz
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old.stk.cz
old.stk.cz
old.stk.cz
old.stk.cz

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9mbyxknelKCJnA7a+8jc
32R9Hn9P457R8AIc26tONvMlZIOgj/pGN0O0CniL4KwlsKYrezjE7BRix5Tkr1ej
giSHqOpAVKzbKLXQx8zAgheJtQF5fqL+KMn8z3t40WiYp2K2lmwoyayQYAJt4AvF
1w1nJVsLQj+AX2ks+cYDSL7txbM1BjtJHclq5Z2rlPEeqFbEYbiUBGeGgMQQoBhe
TUvOSrUSBP+BfM4h48Uh8oOqcXrk83gsdiNJnRcVfPaVpgATrllZCS3X9rg5Ji3Q
hZRUxknECejvwCxlaXwpsIqMOTsiTykEhKB5YsIk9jKdiPQapyolZAOqw6SX7H7w
oQIDAQAB
-----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 305977161939056896888954686085374586034001
 . . . . . . . . [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 2019-10-06 21:04:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-04 21:04:09 +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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 31105388739253037605036340526959574629304160766123914620950237890895347377455362908153008144169397377245095228206747314003142848668720669027470881630133352970152347243199206959051473546649898507658413478385145971706714729034872612025531546179003884421759824678984082590103692217614150375317015949762120533489322942092100749621136393941761334238181965303722147767249849365653266123393711177811794042490861265008630910737269197454905242040570952166560198953955305517449324063087660247054535845927981781803077445582131196367296637630926857809663162661298376656913932974034711776641190557631044211985886073777933252489377
 . . . . . . . . . . . . . . . . . . . . [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)
							e2697e55d5da6db22cdca3c9c526c9cc8f359aa9
 . . . . . . . . . . . . . . . . [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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016da319f346000004030047304502205757cc1ff15b235133cff18c0709471d785a7ed4f9f18a7acefce1c9c613f4ec022100e99a1fc9d0504d069e16ec5d4bc870d309d6169745b1b2b35d8ecd02b9fdc2d9007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016da319f33c0000040300473045022100fee3fc11c886b8dcc513a1a452e40a57c0f07d9960e25e461e8f481c55190d9a022061e69e6a083a1e845d44b32b9a171a32782fecc2f3cc6be8f38c8daa491cfecd
 . . . . [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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