lists.opentechinstitute.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:c2:09:15:22:38:ec:60:cb:c3:28:22:b6:30:cc:f6:be:a0 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=lists.opentechinstitute.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:c2:09:15:22:38:ec:60:cb:c3:28:22:b6:30:cc:f6:be:a0
Serial Number (int): 414475995694011001079019126207066722975392
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: eb:f1:40:06:47:c3:b0:60:94:94:23:b9:3c:ea:14:0f:d1:cd:c1:67
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ca:c8:21:99:9c:7b:5a:c2:e3:dd:48:fe:e4:9d:ba:5b:7b:3e:23:3d
Fingerprint (sha256): 44:a3:57:08:74:b0:42:75:cd:6e:26:c7:b8:46:30:f0:3e:99:a8:fd:d4:7a:b5:81:2f:e0:0b:0a:99:ad:50:46

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 lists.opentechinstitute.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for lists.opentechinstitute.org

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

lists.opentechinstitute.org

Other certificates including the domain name opentechinstitute.org

(limited to 100 certificates)
data2.opentechinstitute.org
*.chambana.net
files.opentechinstitute.org
lists.opentechinstitute.org
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piwik.opentechinstitute.org
data.opentechinstitute.org
piwik.opentechinstitute.org
lists.opentechinstitute.org
data2.opentechinstitute.org
data.opentechinstitute.org
piwik.opentechinstitute.org
mail.opentechinstitute.org
lists.opentechinstitute.org
ipysvenezuela.opentechinstitute.org
piwik.opentechinstitute.org
opentechinstitute.org
lists.opentechinstitute.org
lists.opentechinstitute.org
piwik.opentechinstitute.org
lists.opentechinstitute.org
opentechinstitute.org
piwik.opentechinstitute.org
files.opentechinstitute.org
piwik.opentechinstitute.org
data.opentechinstitute.org
berrigan.opentechinstitute.org
lists.opentechinstitute.org
nat.opentechinstitute.org
lists.opentechinstitute.org
files.opentechinstitute.org
lists.berrigan.opentechinstitute.org
data.opentechinstitute.org
lists.opentechinstitute.org
data2.opentechinstitute.org
piwik.opentechinstitute.org
piwik.opentechinstitute.org
www.opentechinstitute.org
lists.opentechinstitute.org
surveys.opentechinstitute.org
data.opentechinstitute.org
www.opentechinstitute.org
piwik.opentechinstitute.org
data2.opentechinstitute.org
opentechinstitute.org
lists.opentechinstitute.org
lists.opentechinstitute.org
lists.opentechinstitute.org
lists.opentechinstitute.org
opentechinstitute.org
staff.opentechinstitute.org
piwik.opentechinstitute.org
mail.opentechinstitute.org
files.opentechinstitute.org
prototypes.opentechinstitute.org
lists.opentechinstitute.org
imap.berrigan.opentechinstitute.org
lists.opentechinstitute.org
piwik.opentechinstitute.org
staff.opentechinstitute.org
lists.opentechinstitute.org
data.opentechinstitute.org
prototypes.opentechinstitute.org
data.opentechinstitute.org
piwik.opentechinstitute.org
piwik.opentechinstitute.org
mail.opentechinstitute.org
data2.opentechinstitute.org
www.opentechinstitute.org
opentechinstitute.org
www.opentechinstitute.org
data2.opentechinstitute.org
nat.opentechinstitute.org
files.opentechinstitute.org
lists.opentechinstitute.org
berrigan.opentechinstitute.org
www.opentechinstitute.org
mail.opentechinstitute.org
ipysvenezuela.opentechinstitute.org
piwik.opentechinstitute.org
piwik.opentechinstitute.org
data.opentechinstitute.org
data2.opentechinstitute.org
ipysvenezuela.opentechinstitute.org
lists.opentechinstitute.org
*.chambana.net

Certificate

The complete raw certificate details for lists.opentechinstitute.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFGTCCBAGgAwIBAgISBMIJFSI47GDLwygitjDM9r6gMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODAxMjIxNjIwMDJaFw0x
ODA0MjIxNjIwMDJaMCYxJDAiBgNVBAMTG2xpc3RzLm9wZW50ZWNoaW5zdGl0dXRl
Lm9yZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALOCH4xKOCFKhPcR
U3vRJdaWboMOOrIJU/enzAL6YGMYjYPMRvJC88wvUkTwEHp7Hy/+uWQYOV/qDq4a
EBLF1SMZh8KVmbxvZHTvlug3XEUs+pxDSAk2UH9wNUjZMuX5agyhaAz8NTMRNvLw
xkta6jPCN3C3/TeyEgxnEzApxREYy7opzeloNHHF8V9tpPtEGqf4rjTtkuIORo4I
bRYWX/oNdHZsf+mrybgaYIpbSTVra+CtPmzCUPAHftVI4Y8jsx4ADIQ+ELpRk4+c
x1BXmR2XLDGJ0kfoRPfG74Ti8NLDgMLQVZ51/d5KUJRMZTlM5wmm/fqb2uqiVAHd
wtenh8MCAwEAAaOCAhswggIXMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr
BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU6/FABkfD
sGCUlCO5POoUD9HNwWcwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw
bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu
bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu
bGV0c2VuY3J5cHQub3JnLzAmBgNVHREEHzAdghtsaXN0cy5vcGVudGVjaGluc3Rp
dHV0ZS5vcmcwgf4GA1UdIASB9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEB
MIHWMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYI
KwYBBQUHAgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGll
ZCB1cG9uIGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNl
IHdpdGggdGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xl
dHNlbmNyeXB0Lm9yZy9yZXBvc2l0b3J5LzANBgkqhkiG9w0BAQsFAAOCAQEAY82E
LEKoRAPnBIi87JLRKuG/FkhoFB1+Z7u7QpZ5Mof4FJr+V75ZCrAOAvKJenEOTF/y
+NSLA3ehqNF9fQ6BbqDgUcqYJC9LBBZ5RABTAmjIHvpkXI+8aIURHZsyz33q1zq4
OoMUPJzrWuDwUTct6O2sNhkA+PZa+mdtQ5fqA5pdSVh/r0dnxrGjQrr+z41SYnfD
fzvwlHOafxDAV5iu2ji5oX2c2hVfe3kyQBvzPZhBzMELzGJB8Sm38+4hwl/bAru5
W/WNixu3CKrO2nNEcYCQd7maxjxB+AfLBztGcrHfnM5wP6W/GE12tHsLXfvydv5/
MwyKQx8ByIpHrYZTpw==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs4IfjEo4IUqE9xFTe9El
1pZugw46sglT96fMAvpgYxiNg8xG8kLzzC9SRPAQensfL/65ZBg5X+oOrhoQEsXV
IxmHwpWZvG9kdO+W6DdcRSz6nENICTZQf3A1SNky5flqDKFoDPw1MxE28vDGS1rq
M8I3cLf9N7ISDGcTMCnFERjLuinN6Wg0ccXxX22k+0Qap/iuNO2S4g5GjghtFhZf
+g10dmx/6avJuBpgiltJNWtr4K0+bMJQ8Ad+1UjhjyOzHgAMhD4QulGTj5zHUFeZ
HZcsMYnSR+hE98bvhOLw0sOAwtBVnnX93kpQlExlOUznCab9+pva6qJUAd3C16eH
wwIDAQAB
-----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 414475995694011001079019126207066722975392
 . . . . . . . . [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 2018-01-22 16:20:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-22 16:20:02 +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 'lists.opentechinstitute.org'
 . . . . . . . . [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 22660822747314718342448431297692534099607570749480614200400730756937560934734623617858921375076277171778016334095372740941296646159397419915226917021512179907613612138147769400375164898922064376406557362045965321318750427276627019393097736548738470069038972140054669639113479260452788437512125917622278662051222748609895957125757126975161024135120512449738271571982059063292585070344996823592715392666703671236886293438080379141717834946756781084438749568813159434093399860273442234835232554199915529989081609777772548423162065757225871446463590659482056964128610617421959233177172173140702590778471809654082031290307
 . . . . . . . . . . . . . . . . . . . . [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)
							ebf1400647c3b060949423b93cea140fd1cdc167
 . . . . . . . . . . . . . . . . [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 (31 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lists.opentechinstitute.org'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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