www.steveeveritt.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7e:ce:24:53:40:67:fe:37:a2:ed:78:28:8b:d6:6f:0c:53 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.steveeveritt.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:7e:ce:24:53:40:67:fe:37:a2:ed:78:28:8b:d6:6f:0c:53
Serial Number (int): 304486445605680370049776694416920772807763
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c5:73:97:49:c1:d7:a9:6c:ab:74:ab:6c:2e:3a:be:53:6e:cc:b8:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6d:7a:ce:29:45:7f:54:65:f4:2f:43:47:f3:32:e3:54:86:e9:cc:77
Fingerprint (sha256): 27:12:0f:a1:8f:a2:12:8f:b3:9c:38:e5:c5:1a:b9:55:75:b7:c6:6e:7b:25:a5:e3:b6:7c:47:00:cf:f2:64:67

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.steveeveritt.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.steveeveritt.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

www.steveeveritt.com

Other certificates including the domain name steveeveritt.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGYDCCBUigAwIBAgISA37OJFNAZ/43ou14KIvWbwxTMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMTIyMzM1MTZaFw0y
MDA2MTAyMzM1MTZaMB8xHTAbBgNVBAMTFHd3dy5zdGV2ZWV2ZXJpdHQuY29tMIIC
IjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2Dy3hEynA5zLyl2TzMpZFtIm
pJKOCnsHUn7hHlrOKQrgv0++u9RNC0VhLl4qb/gdpEJz3ybaVOd2v4CAM3x2x/Ld
GU+f1Fo2h/RncrE+uiG9f+noGHdl+0GCB0vg02W/ZYYu2KiuI2XF707UAKWZcNbm
U6Mg6jO82hS8dSSzxuyMvDoYBQMCxySEqLE89z8mtl6JuiQwogQiKP0GBMPa6eMR
mxg0brD6bqKU8OJnaCYAsajcLmlmhYZuojxmgWILXvAJQHd8Zk6ESobsrt0N9Ev9
D5fxw3FV6EtgLoG8aYqC4eLM0+xpLL9ECaWl7obF6Vmo3hFZ73jvqNdlzxwKZVFC
piA0FElpOHG7w9Run5DUB84jsB7+Zx7Rh1UKRPauywcC0BZ9dGJuK7UiPRd5dQJu
vjegzqqb1rNZPC2CCwWtIDwMIvdkOqgdylDKXRZ+LQ5e7pepJID0w39TvheiQCPI
eQIJ25qRLTIrjwLpqD0GWDfcsLKm3CMptq8lDRdQ2WhXuDjTyqZQ+oKQxKJQC8Xn
iDsdqZmJa/JjzPggRNhSd6m0kJ/RwlctUs7MXcA4J8Y3BSpL/ihanG+vj/jtcwY3
kBWvVnRqKtD1rx9shSePLD5owZafW5HfKCY7p2HrDjRPL5zGSxNWK6a/hQlu94fU
VhSuYwrLK/0xT+AkdCkCAwEAAaOCAmkwggJlMA4GA1UdDwEB/wQEAwIFoDAdBgNV
HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E
FgQUxXOXScHXqWyrdKtsLjq+U27MuOswHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3
pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2Nz
cC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2Vy
dC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAfBgNVHREEGDAWghR3d3cuc3RldmVl
dmVyaXR0LmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAo
MCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisG
AQQB1nkCBAIEgfUEgfIA8AB2AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaB
cUVYAAABcNFRE0kAAAQDAEcwRQIgU4Ey2SbY0StpOh00uKqgk2NKIrnUudzRmB20
KvhsVa0CIQDYTvyuBpFtlD/XpvJnmKxekgoLxUB9PdmJCW6o8SFtbgB2ALIeBcyL
os2KIE6HZvkruYolIGdr2vpw57JJUy3vi5BeAAABcNFRE0oAAAQDAEcwRQIgPQ+j
2BxNjX4p15LjSYEZtFpfzaLnM2lOewgNoFQfzfgCIQC2Yv6QwrdtczUov5hkXyY9
eMwaPmfHj0ysStMI0SrD0TANBgkqhkiG9w0BAQsFAAOCAQEAl8G4+SpPGK00ujfo
+1VPobAhZFdWj9W1KF0pYhmTGAXuVvU8X3AX6YJpmz7/l19Jhy4FKCjW6YRoq+0R
cq+IEKAjUdsUhgwDEOtwI+KUedBElzD2ctVks8XEhoNjhNEOj3n5iJS14bRbSB6A
grODVCPjtNLl3CJCOm9sBkk1qOuy6Z8QCb4sUXIwliwb7g+rSnRVsIyFj4/kkw3+
YRo8Ppo3Qlb4jftXfXIz+35x5AsS4fHUYzaorfN1b9KTNKpXXQmD9aqnAdKOKnrt
ALMaQv3gQYiHFgrHtl++3Q1F6u4v63k6CXZoSixN+TqcpjsVKiRqNkLHTHdpWv0N
eHoDtg==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2Dy3hEynA5zLyl2TzMpZ
FtImpJKOCnsHUn7hHlrOKQrgv0++u9RNC0VhLl4qb/gdpEJz3ybaVOd2v4CAM3x2
x/LdGU+f1Fo2h/RncrE+uiG9f+noGHdl+0GCB0vg02W/ZYYu2KiuI2XF707UAKWZ
cNbmU6Mg6jO82hS8dSSzxuyMvDoYBQMCxySEqLE89z8mtl6JuiQwogQiKP0GBMPa
6eMRmxg0brD6bqKU8OJnaCYAsajcLmlmhYZuojxmgWILXvAJQHd8Zk6ESobsrt0N
9Ev9D5fxw3FV6EtgLoG8aYqC4eLM0+xpLL9ECaWl7obF6Vmo3hFZ73jvqNdlzxwK
ZVFCpiA0FElpOHG7w9Run5DUB84jsB7+Zx7Rh1UKRPauywcC0BZ9dGJuK7UiPRd5
dQJuvjegzqqb1rNZPC2CCwWtIDwMIvdkOqgdylDKXRZ+LQ5e7pepJID0w39Tvhei
QCPIeQIJ25qRLTIrjwLpqD0GWDfcsLKm3CMptq8lDRdQ2WhXuDjTyqZQ+oKQxKJQ
C8XniDsdqZmJa/JjzPggRNhSd6m0kJ/RwlctUs7MXcA4J8Y3BSpL/ihanG+vj/jt
cwY3kBWvVnRqKtD1rx9shSePLD5owZafW5HfKCY7p2HrDjRPL5zGSxNWK6a/hQlu
94fUVhSuYwrLK/0xT+AkdCkCAwEAAQ==
-----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 304486445605680370049776694416920772807763
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-12 23:35:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-10 23:35:16 +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.steveeveritt.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 882170709269852219777381437023175167668725636075813881729960499664586967599901935624131015925652588877480668228087155029793723130408109056977661939834392763429905575407773718841786107661002662268842774812137395066671570163156944375554809899056320934089645177977818560712850114780269979945369935034889168347326503389031480820249591109001960943726836718586725586240763234875528797104655243358184192260545337590143576950626421257777588728208203859170189434505792000132862571678095350258531219712352709899365324168811669131170460079179098482563371564125571971893778843933769424096199821369138596438268480069692616718063129855867022818858625925145851020416595876369565613090053971174451309433707890173936840050191169954412722704002137745467798030449971789491281039275487662431110476650026795777844897340140901107238666016964315270519034613825527868101763988929268482752037807409060643058807010717179271081754771888096253190827885031818093868855548029522765951459505258614485783748640894864136320115986254668120702672198481317865362025857414424043179620550757709054839205660757730308304205243459498487046608870698670813827864632602037119021544619518772178506706018011491492534320295860450666309796614823764547194119670169101726185806918697
 . . . . . . . . . . . . . . . . . . . . [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)
							c5739749c1d7a96cab74ab6c2e3abe536eccb8eb
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 'www.steveeveritt.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170d151134900000403004730450220538132d926d8d12b693a1d34b8aaa093634a22b9d4b9dcd1981db42af86c55ad022100d84efcae06916d943fd7a6f26798ac5e920a0bc5407d3dd989096ea8f1216d6e007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170d151134a000004030047304502203d0fa3d81c4d8d7e29d792e3498119b45a5fcda2e733694e7b080da0541fcdf8022100b662fe90c2b76d733528bf98645f263d78cc1a3e67c78f4cac4ad308d12ac3d1
 . . . . [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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