sfek.kz

Issued by R3

About this certificate

This digital certificate with serial number 04:d2:57:b8:2e:3d:bd:a7:e9:f9:ba:8d:57:f6:cb:e7:d0:f6 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): 04:d2:57:b8:2e:3d:bd:a7:e9:f9:ba:8d:57:f6:cb:e7:d0:f6
Serial Number (int): 420025039936575777346763692632373117571318
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5f:9f:ec:5a:69:e6:47:d3:14:b7:2f:ec:e4:00:02:d7:f0:da:80:77
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1a:64:3a:19:b7:50:52:2e:03:96:a7:f2:04:bb:fb:aa:5a:99:1b:32
Fingerprint (sha256): 86:d9:23:ec:8e:84:5a:e3:ad:ad:6b:b2:f4:e0:6a:10:65:aa:32:0b:8c:b4:6f:f5:52:da:4d:47:a6:c2:d7:6c

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
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sfek.kz
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webcam.sfek.kz
sfek.kz
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student.sfek.kz
sfek.kz
sfek.cf
sfek.kz
sfek.kz
*.sfek.kz
sfek.kz
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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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzQ1pB6AlOfwypFt6kT0V
WKyWtE1zEvqf/6E8hjImSolf9BnyhsZiDL6gj8sk1elOTG2iK/pE1L2oEfOKtupC
9htdMHkpOAxy5pm4o+Yg5vX4wK3PJm5LmPK78JFvIbJnMcd5KWynIeOa58aCPOhn
8YWGusgnxR8XFFfzC1ceLcnEx5N5rLKDw9/BCdivZ03jf1PZ71bZ99VDD+zmzlUW
cvdVX9M/fKiT9jxiuIEmf9Qz5QQNFJFlDmbbo1mtso265S1hiMbJnmLWRLez8Y/f
rrJ2zcOI1oSnzfKzbo5N13VFvRcVGPksJMoH1JpRFKkHfsOb2L1qtvLpz5HuiVDK
pwIDAQAB
-----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 420025039936575777346763692632373117571318
 . . . . . . . . [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 2023-06-11 03:53:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-09 03:53:18 +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 25885465369928861805021606058403109212330583550999932659814737316997864919225430648417621663699294041454031720351329285901398948946537842039313982493566379494103825360369014650426630693084294405378911247639531422869107425133659755298420599928944838165237379847101814947502086835281171172202458486801393848181392385268498766882622971022993902881138152513248689005809858932400254339732095744981508485076420293750334585509210467582677649621753304370957835708890967978172177527856802732810839037903446357480423414493307972845514133606644649107459824936903856959776410583917281929971048506729162675093970921072872830061223
 . . . . . . . . . . . . . . . . . . . . [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)
							5f9fec5a69e647d314b72fece40002d7f0da8077
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000188a8cd31bd000004030046304402206fff54bf621873db6c34971628179f7f3285eff2a121ebfbea465a3157c55ae502202d9b61d73b537e2c7a61cd5dec7e1f87a948aed019dc010c7b72fc4d999d5336007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000188a8cd31e00000040300463044022035f1d6e4e06f16384f6edbe4175f194f9c81e66ec2bc2ae15aa3b0170668b5cb022042f789f4aa3cd8661544d35cd82a954446b2567e04ba8d0c007bf161fdd16d5c
 . . . . [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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