johnmike.com

Issued by R3

About this certificate

This digital certificate with serial number 03:5d:aa:f0:fa:06:55:07:e4:de:e1:76:1f:e2:f8:53:28:71 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): 03:5d:aa:f0:fa:06:55:07:e4:de:e1:76:1f:e2:f8:53:28:71
Serial Number (int): 293210337900561586756119756650147120097393
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ff:de:23:64:66:c1:d7:8a:a9:7c:d9:71:20:ce:85:04:5f:ad:e4:d7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d0:a3:aa:8f:7b:04:43:8c:67:1c:0e:5a:00:f4:61:e4:b3:36:19:90
Fingerprint (sha256): ce:aa:5c:b4:60:83:fa:2d:8c:6f:8c:19:9f:20:69:79:80:55:b9:92:31:e8:8b:4f:bd:fb:29:1f:67:ac:ea:8d

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-----
MIIF9TCCBN2gAwIBAgISA12q8PoGVQfk3uF2H+L4UyhxMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMjgwNTAyMDJaFw0yNDA2MjYwNTAyMDFaMBcxFTATBgNVBAMT
DGpvaG5taWtlLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAJ84
iN0x6zF9Srs5pl/ejH8RI3DXKyCi9eLY1cKot/UBPoiubKz/ULj/J76WLII1Nr/h
lsEZlQjCiZ3kX6YqLCAy5gDBZFblDTnMzF4FBFE4R13wM2z7m0syuj3DehlWeT5I
kvmdcYNZc6iMUjwdoedqrHxWnR0Kilcjucw8dHM6TgRoTHQTLv9+Grmh8kT1QvmW
Rnm5z/Aj9/P0jTrQaiSVATPSzln2f8Jj7WjscvFRB7nnOUgw0niHEQm3dAUyPQYV
m4+LRf82IDkGxcs44OrXAUQ9Zr/3lVrfqVADVWFDNOYnOgxq7rf6g/KSvEVFatHS
ceMYAvJKH3hJZsRue/KoQIeRHLYd5e3hHm9W/dd5FGJ/gOebPlex5pE8f447d7rR
0u4YK/E5q4vebQ5hW36AcLLT7kX7M7OAWDXf9cwMUMKUVDxslZI1veCOVhBgmtCY
vIVZzyAWwR3GLc5J6uFqia4L3FFAQCqTOVR3YMvqPGI/307tlKpR45BgD067jbHG
3hUHAs+FKPyaix3838qkL+1GYiHrmi7p8wAtQOutud9loCA0hCKZzDUG2nFbjNE0
VlH72h8i8BECh6lrtSoaQASrfWqmRvx2f+0hDJk134MxmMhMFwH/YxVQjC4TSMjo
TPF+55rjub6x9582L7s6ZpztKwD7A00uRBYgJNiZAgMBAAGjggIeMIICGjAOBgNV
HQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1Ud
EwEB/wQCMAAwHQYDVR0OBBYEFP/eI2RmwdeKqXzZcSDOhQRfreTXMB8GA1UdIwQY
MBaAFBQusxe3WFbLrlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEF
BQcwAYYVaHR0cDovL3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8v
cjMuaS5sZW5jci5vcmcvMCkGA1UdEQQiMCCCDGpvaG5taWtlLmNvbYIQd3d3Lmpv
aG5taWtlLmNvbTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQIGCisGAQQB1nkCBAIE
gfMEgfAA7gB1AD8XS0/XIkdYlB1lHIS+DRLtkDd/H4Vq68G/KIXs+GRuAAABjoOm
r2cAAAQDAEYwRAIgfPso5bc8lizcpdu9HurPKZbzHbAsJuGuGx9rFef9dvwCIH/W
2EIquGb8ngvGaCCP4HJ9QZaaWMDej+3z53n2Wj3wAHUAdv+IPwq2+5VRwmHM9Ye6
NLSkzbsp3GhCCp/mZ0xaOnQAAAGOg6avqwAABAMARjBEAiBSb6Espq1C6RdBj7fF
oR07Fw5N0jKzrrS9EOXSeW/DWgIgPG4u3OD+5RguSxsyn5E8b6eQDTm10jXL6BGg
1QwgO3AwDQYJKoZIhvcNAQELBQADggEBAHnEZCl+pPGTn/n9T6sXJ2OS3ApCcWRg
rsEVbkpWVqo4l/oQ8bNdAzmTaA0FIkTXjy8otlFluo3xIQJeLIMHUVpNSwZRyWrJ
yeM4wNEjqZSb6zw5L7wNk0OKbF8vHJWfwQC89TE0grMarJ3ruXH5dSSfSYR+WyCs
jcJjEw/oVZi19gn6dlAGGJWZc8Jmw2QwASEAIilo0OyH89XCbigHs+Wp+oI/tigu
CvGDf3kq75Cfkzp3nEe3SgIGUQpBkxHmOEQhTbk5Rfyrm5of3DVgJ0CtL0XhYmza
y5eE45MVWteqI0XVKqwZe86FH2hjllhCmYdYeQl4weN390YHHChIFIk=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAnziI3THrMX1KuzmmX96M
fxEjcNcrIKL14tjVwqi39QE+iK5srP9QuP8nvpYsgjU2v+GWwRmVCMKJneRfpios
IDLmAMFkVuUNOczMXgUEUThHXfAzbPubSzK6PcN6GVZ5PkiS+Z1xg1lzqIxSPB2h
52qsfFadHQqKVyO5zDx0czpOBGhMdBMu/34auaHyRPVC+ZZGebnP8CP38/SNOtBq
JJUBM9LOWfZ/wmPtaOxy8VEHuec5SDDSeIcRCbd0BTI9BhWbj4tF/zYgOQbFyzjg
6tcBRD1mv/eVWt+pUANVYUM05ic6DGrut/qD8pK8RUVq0dJx4xgC8kofeElmxG57
8qhAh5Ecth3l7eEeb1b913kUYn+A55s+V7HmkTx/jjt3utHS7hgr8Tmri95tDmFb
foBwstPuRfszs4BYNd/1zAxQwpRUPGyVkjW94I5WEGCa0Ji8hVnPIBbBHcYtzknq
4WqJrgvcUUBAKpM5VHdgy+o8Yj/fTu2UqlHjkGAPTruNscbeFQcCz4Uo/JqLHfzf
yqQv7UZiIeuaLunzAC1A662532WgIDSEIpnMNQbacVuM0TRWUfvaHyLwEQKHqWu1
KhpABKt9aqZG/HZ/7SEMmTXfgzGYyEwXAf9jFVCMLhNIyOhM8X7nmuO5vrH3nzYv
uzpmnO0rAPsDTS5EFiAk2JkCAwEAAQ==
-----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 293210337900561586756119756650147120097393
 . . . . . . . . [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 2024-03-28 05:02:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-26 05:02:01 +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 649564348800369864618019881689054152185354389225573830905415465180742178762277896848322329408259286380747549695635554596187441803892747706042741677178732347940187941939792049743427892748493505108036457972476684149481786593050636658618572323047264608493903248697057561026449694201347771428419046449638684995498007399091480342319814702922509888659096334567952119185949288839379652720790655463472195663838039326160710603226941321834218121776719210323851926297173323657272041568138407430109954421142804739875330541268682313980053106871864408559960123153900455485600683898305536136240650412800555316901253638270424530681160300068093895887909514907865143375360147979780998793719176287341200276740477369744346533969028514973510351865772671870137974238368202790771402849575995012810501559078312312664654628844965234777027162824789826329504722722488437218826743895331849633699925710898683915250306174279505814862966244978803440603349602201885326485056095217287821768969376267816972123630114319219429995045205045079122117461963939114845201371279604690848296101494839122730798972755824905146944238167516907867007324002195338666931220331153171581035225241214596515576126890468141265192874748092966740826619844956918122207807172171154221789665433
 . . . . . . . . . . . . . . . . . . . . [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)
							ffde236466c1d78aa97cd97120ce85045fade4d7
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018e83a6af67000004030046304402207cfb28e5b73c962cdca5dbbd1eeacf2996f31db02c26e1ae1b1f6b15e7fd76fc02207fd6d8422ab866fc9e0bc668208fe0727d41969a58c0de8fedf3e779f65a3df000750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018e83a6afab00000403004630440220526fa12ca6ad42e917418fb7c5a11d3b170e4dd232b3aeb4bd10e5d2796fc35a02203c6e2edce0fee5182e4b1b329f913c6fa7900d39b5d235cbe811a0d50c203b70
 . . . . [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)
		0079c464297ea4f1939ff9fd4fab17276392dc0a42716460aec1156e4a5656aa3897fa10f1b35d033993680d052244d78f2f28b65165ba8df121025e2c8307515a4d4b0651c96ac9c9e338c0d123a9949beb3c392fbc0d93438a6c5f2f1c959fc100bcf5313482b31aac9debb971f975249f49847e5b20ac8dc263130fe85598b5f609fa76500618959973c266c36430012100222968d0ec87f3d5c26e2807b3e5a9fa823fb6282e0af1837f792aef909f933a779c47b74a0206510a419311e63844214db93945fcab9b9a1fdc35602740ad2f45e1626cdacb9784e393155ad7aa2345d52aac197bce851f6863965842998758790978c1e377f746071c28481489