johnmike.com

Issued by R3

About this certificate

This digital certificate with serial number 04:7d:c6:ab:6c:4a:84:9d:d8:ed:28:36:68:2b:19:30:4f:c1 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:
  • 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=johnmike.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:7d:c6:ab:6c:4a:84:9d:d8:ed:28:36:68:2b:19:30:4f:c1
Serial Number (int): 391248516814490681385268856529244075872193
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 10:1d:f7:3a:e7:47:86:3a:f6:f6:1a:b9:89:c5:9e:17:ab:57:a0:dc
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e9:f0:6a:b3:3b:72:b8:00:96:8b:ba:4d:aa:cd:ad:87:6b:bd:68:c1
Fingerprint (sha256): 04:1b:dc:3c:16:d9:ae:fd:0f:78:f6:19:4c:f9:59:d2:b3:5d:a2:dd:c0:7a:da:c8:43:d2:a3:b7:2a:82:55:63

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

Revocation information

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

Check the revocation status for certificate johnmike.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for johnmike.com

Public Key Algorithm

RSA

Key Size

4096

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

johnmike.com
www.johnmike.com

Other certificates including the domain name johnmike.com

(limited to 100 certificates)
johnmike.com
johnmike.com
johnmike.com
johnmike.com
www.johnmike.com
johnmike.com
johnmike.com
johnmike.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 391248516814490681385268856529244075872193
 . . . . . . . . [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 2023-09-27 09:03:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-26 09:03:23 +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 'johnmike.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 894312536478960087429663112161749057032155511580002769553339487062325337825106967927103763066796512975983533882541540510447074298634453598978905052547762118297518477790947835269595497240076474902645865097297111838357273202271625934415844708086162167460627436500681398831908266497785376469833516906781340152450215150499354333197972349468249800029693951969133765015578595215899951164421536575285464989774907072459270623500981634556989804734700660705597678941673684047917612327437188612109666772501062910160613173413372080092905149404808200414422739922295142561574193121988174075050850590725646745951501969021135374376342585237486647811389567818860521746270835938475159553491709232563131985644921399303610665681646610671327685037522078083759805745611185362237886154193009478538185739217373265073102784352684369612975588479806442124324996955158710030304892166160318970483567764623602506689854884293979844687594439675747460010303279429436887624226048761513968602430193042733715006082145553475378638996379553688354342229875224885335482275572799989453939040016511432460554161334525031256767462749379636968015276945168952921012823054581261408554623202231131049033371679736686620077816385777868361872755102384563745677842334471629088804623347
 . . . . . . . . . . . . . . . . . . . . [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)
							101df73ae747863af6f61ab989c59e17ab57a0dc
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'johnmike.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.johnmike.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ad617e405000004030047304502200537a52b0b7b7e4f9f55a72f878e297ca7561a77d82d9201f2b26929bc4728e7022100f9859c6d8cceda631fed3073a0c24d184fb63b3d5623ecc00c42a1b1903d7f77007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ad617e4a2000004030047304502201833dfd349c9551194234d208da7bd2bea31a5e50e8e6f2b85a299def744a18e022100c57fa8afc809c4f86224cd47eaddb84ea0d90751e858ea3bf6a3654e3384560d
 . . . . [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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