blog.ciachef.edu

Issued by R3

About this certificate

This digital certificate with serial number 03:e9:6e:20:c3:2a:d6:97:fd:d9:f9:56:f0:ea:27:b9:f7:a4 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=blog.ciachef.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e9:6e:20:c3:2a:d6:97:fd:d9:f9:56:f0:ea:27:b9:f7:a4
Serial Number (int): 340769034479359084863696508736735815530404
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d8:21:db:2e:3a:bd:ac:d4:6d:be:f1:5f:95:26:f1:1e:19:4a:38:35
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 88:0d:c1:bb:ff:66:6f:7d:92:99:f6:bf:80:76:b3:9a:36:32:3d:14
Fingerprint (sha256): a6:46:86:d2:75:4c:21:21:68:7c:93:9b:3e:2e:5c:fb:54:db:90:dc:dd:97:87:99:62:24:8a:a9:8b:80:35:45

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

Revocation information

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

Check the revocation status for certificate blog.ciachef.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for blog.ciachef.edu

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

blog.ciachef.edu

Other certificates including the domain name ciachef.edu

(limited to 100 certificates)
blog.ciachef.edu
info.ciachef.edu
info.ciachef.edu
blog.ciachef.edu
apply.ciachef.edu
info.ciachef.edu
blog.ciachef.edu
SECURE.CIACHEF.EDU
blog.ciachef.edu
info.ciachef.edu
catalog.ciachef.edu
learn.ciachef.edu
apply.ciachef.edu
SECURE.CIACHEF.EDU
*.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu
learn.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu
learn.ciachef.edu
learn.ciachef.edu
info.ciachef.edu
www.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
catalog.ciachef.edu
www.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
info.ciachef.edu
apply.ciachef.edu
blog.ciachef.edu
catalog.ciachef.edu
info.ciachef.edu
*.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
apply.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu
info.ciachef.edu
www.ciachef.edu
*.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
info.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
blog.ciachef.edu
info.ciachef.edu
catalog.ciachef.edu
blog.ciachef.edu
apply.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu

Certificate

The complete raw certificate details for blog.ciachef.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1MZu3F3qqxqQC12Nxu7k
mVLCW41xFmBwX+oNzIKN31h++W++GA9TciFYCCx3jOb3n/IgUiArbaLd17A43xJE
xxJnssvPR1icvsyLwlpe/WdIZdRFsaGPAQLuM0AFYaARlkkJ8rUiP0ZnI1ADmYGJ
2Rr3f6suQinAKasyzoaUSPRqIpJLhv2krgbnpFSb1r+VVYRfTAHLM/UBHMEN4CAf
F4VQ2lFcqNl1AL3eyRTAL+bkdRcyZV63kJRRmPHFpqNNCTPIS6jDh3dx5czhzKxm
74ez/so6zMp22m7DzsXkdtF4S1a9htUyyhaVuzpeNqE1g6ps/UL9MhBXkPGETX+8
lQIDAQAB
-----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 340769034479359084863696508736735815530404
 . . . . . . . . [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 2024-01-23 17:30:54 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-22 17:30:53 +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 'blog.ciachef.edu'
 . . . . . . . . [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 26860371636731057152900797330943508561663271097559372293557797506457140136874617629699991224678949071120561823627333577010395608133034451969453803871938952466052892663110341082866148300760205150020322922317266328068566459463369828126787772400824199174463617051014559831181542776858336906658739868589291561768506792366795344800145638920025630997594694345358213250770090425607967501102475509904692446846141778844577078491553321917431528432788762116214539678704959282165946561575147071665309019037577648153009390996212272913859533212780546448190652021021857040310898901343210519142636587847560226450857832286924004375701
 . . . . . . . . . . . . . . . . . . . . [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)
							d821db2e3abdacd46dbef15f9526f11e194a3835
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'blog.ciachef.edu'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d3796ebd20000040300483046022100fa76f79bc5be43f359cfd10edfdf81f50f2bde71a81611b5b05e4d27beee89d8022100c7e50fdb47de5bec37d64ba88316dad92397712d383995234f930ce11d8948710076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d3796edc8000004030047304502205d3b8455b29972397209c09c9f4cd25eea2f0b05d0efaab569d5d00c69fc3594022100d98399644a8553016c0bb5f4728a5fbae893f36ae5f8fa80b3ed279be24c60a6
 . . . . [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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