www.jackfung.com

Issued by R3

About this certificate

This digital certificate with serial number 04:84:e5:16:79:34:96:8f:be:16:36:a9:a3:18:c0:1a:93:40 was issued on by Let's Encrypt.

With 3 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:
  • 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=www.jackfung.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:84:e5:16:79:34:96:8f:be:16:36:a9:a3:18:c0:1a:93:40
Serial Number (int): 393670926060508520282882518157139895817024
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f6:45:d7:3c:00:c9:4d:70:c4:9e:6c:af:6e:0e:2e:78:7d:18:c3:11
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b8:6d:79:8c:d6:f0:05:69:d2:96:57:24:fd:1a:71:fa:1e:1a:bd:df
Fingerprint (sha256): 98:7a:d2:ee:e5:3a:53:89:ae:a8:7c:8d:51:53:2b:5b:25:95:45:68:40:f4:ed:fe:cc:88:52:a3:33:60:aa:f3

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

Revocation information

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

Check the revocation status for certificate www.jackfung.com

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.jackfung.com

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

jackfung.com
photo.jackfung.com
www.jackfung.com

Other certificates including the domain name jackfung.com

(limited to 100 certificates)
jackfung.com
jackfung.com
www.jackfung.com
photo.jackfung.com
jackfung.com
photo.jackfung.com
photo.jackfung.com
photo.jackfung.com
www.jackfung.com
photo.jackfung.com
jackfung.com
photo.jackfung.com
photo.jackfung.com
jackfung.com
www.jackfung.com
jackfung.com
photo.jackfung.com
photo.jackfung.com
jackfung.com
www.jackfung.com
photo.jackfung.com
jackfung.com
jackfung.com
photo.jackfung.com
photo.jackfung.com
jackfung.com
www.jackfung.com
photo.jackfung.com

Certificate

The complete raw certificate details for www.jackfung.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzGBR/IjZuIHa3vHFWKmc
k1zi+DThUbw271hrX9Fj+grvLl86kjmC4gd2st2o6ZLXfmmET7pYKo45eRFeP/BM
YWGeRnF8w/FLqq0GOI0hWKghGTot33a3MlXEt3uQalgxlmUz+i/2cldR1ArtWh47
nFi4zf13ZLjBL9ZsUDjRyBvl3wIy5r9z+1BUDuntm4RYpo9MSgovpJUEj344a8B1
1UnsauP59v6MCVP9jQV/YTWeXagUR/hllFQQC549IDYW/qNqwwzjxrMr2Wi/DFA4
fUSFjcnCzbwTRGD+1tjRxKMON2LGetcB4wPmOnWMLHZJUxlvyjl47vVk+lfbJLRm
0wIDAQAB
-----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 393670926060508520282882518157139895817024
 . . . . . . . . [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 2023-12-31 17:54:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-30 17:54:19 +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 'www.jackfung.com'
 . . . . . . . . [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 25800111503343703582101043574434771456331155005172067033195897207553132707091771770020193376565305521260092407238463014405998700863069364706287169096014429457454442759088913194962463306739212625671033734811850633779016076122221411947704881250983633165780091006309179374022487708941076798401122351660478957970510891932674951336562859027224638132159122639355202001241276531475305783001063808725203115618062716140160011381929114723276127629385260175640359066224572132404893403037437173731898238197185590383110205670580642957712657637099952871059166383455414135819279251491418293041881001150730592563616749219705989129939
 . . . . . . . . . . . . . . . . . . . . [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)
							f645d73c00c94d70c49e6caf6e0e2e787d18c311
 . . . . . . . . . . . . . . . . [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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jackfung.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'photo.jackfung.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.jackfung.com'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cc13a1f14000004030047304502202b1c6b634168be53d21e54ea0e41363df717d3b9862a6069db3797d4e5a7cc41022100897de63bd06e7945334745837dea20c0b7356df6caa80c3339e1a40934921ada007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018cc13a1f6600000403004630440220649eb9149227d0d1fca31bb30d72f37a8cb40af30740445c8bbdc27da8aeaf0c0220572430d68d35e462d0a8921a1dcac83f6d351949fdf05af0cba8ca5a3e5b1f20
 . . . . [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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