sfek.kz

Issued by R3

About this certificate

This digital certificate with serial number 03:ab:49:27:36:7a:dc:ba:ed:e1:e1:f7:3b:23:47:8d:79:bf 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=sfek.kz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ab:49:27:36:7a:dc:ba:ed:e1:e1:f7:3b:23:47:8d:79:bf
Serial Number (int): 319622379787015266018769499703588590287295
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fd:10:5c:7f:e1:61:71:be:88:8a:a2:89:0a:0b:fd:7e:fa:27:9f:90
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 92:f3:11:6e:cf:6d:c3:ce:3a:41:0e:0b:a3:e2:24:9a:58:a4:18:3a
Fingerprint (sha256): 62:e3:c2:54:bc:5a:96:86:69:c1:2c:4d:70:17:6d:fc:a0:aa:56:1a:ec:2f:d1:8d:5b:6b:60:e6:28:a6:19:01

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

Revocation information

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

Check the revocation status for certificate sfek.kz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for sfek.kz

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

sfek.kz
www.sfek.kz

Other certificates including the domain name sfek.kz

(limited to 100 certificates)
sfek.kz
stat.sfek.kz
sfek.kz
sfek.kz
sfek.kz
sfek.kz
webcam.sfek.kz
sfek.kz
sfek.kz
sfek.kz
student.sfek.kz
sfek.kz
sfek.cf
sfek.kz
sfek.kz
*.sfek.kz
sfek.kz
sfek.kz
sfek.kz
buh.sfek.kz
sfek.kz
buh.sfek.kz
student.sfek.kz
beta.sfek.kz
*.sfek.kz
*.sfek.kz
sfek.kz
sfek.cf
sfek.kz
sfek.kz
*.sfek.kz
sfek.kz
sfek.kz
sfek.kz
sfek.kz
sfek.kz
sfek.kz
sfek.kz

Certificate

The complete raw certificate details for sfek.kz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFIjCCBAqgAwIBAgISA6tJJzZ63Lrt4eH3OyNHjXm/MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMjA4MTMxNzE3MTZaFw0yMjExMTExNzE3MTVaMBIxEDAOBgNVBAMT
B3NmZWsua3owggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCrdCwJoYXB
BjpW3eOI43PtMFgivIxXB6JXTemajIE3m8qrRb1v+IWDUIKT3AwPXZVH3Dd2vmcq
48W2i9Gv2bGypzfJuOnyN0g53MtwHlwt/gvKrF2n8yyXJvm9hJeVXnsYNLvszaax
kbHD1KtLyj3L4Uxjmfug49n347rqcuQuqY9OxFej8D8GA61MSSA5q/gUJ8llln2q
MqSzP5Bu925k19HA6AxTdr6FG+0Xy4XAK/waK7FUFdwxw3pCEk91cjeBltKvJ1PP
15fthRLs9V5iotiPm5NFecFP7DrfRX6dUdlpdkYqkhsIVBc4v04QPoMxKxZ8RoRT
0BW9ByMOixlJAgMBAAGjggJQMIICTDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYw
FAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFP0Q
XH/hYXG+iIqiiQoL/X76J5+QMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYfr52L
FMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8ubGVu
Y3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMB8GA1Ud
EQQYMBaCB3NmZWsua3qCC3d3dy5zZmVrLmt6MEwGA1UdIARFMEMwCAYGZ4EMAQIB
MDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2Vu
Y3J5cHQub3JnMIIBBQYKKwYBBAHWeQIEAgSB9gSB8wDxAHYAKXm+8J45OSHwVnOf
Y6V35b5XfZxgCvj5TV0mXCVdx4QAAAGCmGyxeAAABAMARzBFAiEAq7K4qlglyaeV
+r4U5Pfh2N02yfUC8cAp7JN3MlsbF7cCIDbtO7m2Zurzix1crpNuqw2gR56AIV05
er8dJmijuwuBAHcAQcjKsd8iRkoQxqE6CUKHXk4xixsD6+tLx2jwkGKWBvYAAAGC
mGyzsQAABAMASDBGAiEA/9EU0mMmFZ5n8B1kYTpYHDmH0Mv4s8M8FBkNVxc0SMoC
IQD2vVTZ8K0CGZuI+ohoaV2fsYiOq+yEDVMiaD3e/lefqzANBgkqhkiG9w0BAQsF
AAOCAQEADour/6KkNJ3meyDVh4SPMCu9d6K7ccVvGMgBb9YSnd6DfEQ8LZ/8uLOF
wdKzN4xpJtN+PWVie01aQXLcyyY4Uy8uyzkz9VxpNOQwODhflA1jNWBcYiFgA0eg
5sn0mR+XGr9HTkHxz2xUNUY5Yw0JHjpg6tF9jhA/7f0im4V0sX5OeyeSwy/IkA7B
+tzmvL7vvw/wVzmq0Dv6HvqpqOhrQmp4nQ2WiNTeVrWRObKcppJy1UxozjC+7RW2
mhNGqk2TzZKIksfNk6oIpS4bnMgmC30cCqQM784+lN6JGSyxlpEHlUq/VBwR/vr+
LlhllJwp/KH5nIpp8mru4eHk5E9qVg==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq3QsCaGFwQY6Vt3jiONz
7TBYIryMVweiV03pmoyBN5vKq0W9b/iFg1CCk9wMD12VR9w3dr5nKuPFtovRr9mx
sqc3ybjp8jdIOdzLcB5cLf4Lyqxdp/Mslyb5vYSXlV57GDS77M2msZGxw9SrS8o9
y+FMY5n7oOPZ9+O66nLkLqmPTsRXo/A/BgOtTEkgOav4FCfJZZZ9qjKksz+Qbvdu
ZNfRwOgMU3a+hRvtF8uFwCv8GiuxVBXcMcN6QhJPdXI3gZbSrydTz9eX7YUS7PVe
YqLYj5uTRXnBT+w630V+nVHZaXZGKpIbCFQXOL9OED6DMSsWfEaEU9AVvQcjDosZ
SQIDAQAB
-----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 319622379787015266018769499703588590287295
 . . . . . . . . [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 2022-08-13 17:17:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-11-11 17:17:15 +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 'sfek.kz'
 . . . . . . . . [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 21644036708322117547078384721795908802927893930314553236122481222184563584610975176534717405661067493059520497484172350595695686043446663826056116363044647655913012929249991906850582972121618573648207491170141123779857472238431822781761844190724310471375792396088409664867046849819371232692078455419053454964013441272273222009005056412169718816622736291196693334928259888009636645100057130638641728870788896077173007893078906833016857955355552479113580108583983118920039571370887420343862020118789302631922024908702822166832058249496560644287918376022883693385000788537080019082467975957235117574844603132375615609161
 . . . . . . . . . . . . . . . . . . . . [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)
							fd105c7fe16171be888aa2890a0bfd7efa279f90
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sfek.kz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sfek.kz'
 . . . . . . . . . . . . . . . . [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)
							00f10076002979bef09e393921f056739f63a577e5be577d9c600af8f94d5d265c255dc78400000182986cb1780000040300473045022100abb2b8aa5825c9a795fabe14e4f7e1d8dd36c9f502f1c029ec9377325b1b17b7022036ed3bb9b666eaf38b1d5cae936eab0da0479e80215d397abf1d2668a3bb0b8100770041c8cab1df22464a10c6a13a0942875e4e318b1b03ebeb4bc768f090629606f600000182986cb3b10000040300483046022100ffd114d26326159e67f01d64613a581c3987d0cbf8b3c33c14190d57173448ca022100f6bd54d9f0ad02199b88fa8868695d9fb1888eabec840d5322683ddefe579fab
 . . . . [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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