courses.superna.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:df:14:07:76:2a:a5:6c:aa:27:37:ed:03:7d:b2:9b:73:30 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=courses.superna.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:df:14:07:76:2a:a5:6c:aa:27:37:ed:03:7d:b2:9b:73:30
Serial Number (int): 337246448921346837804086719328351491420976
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ff:94:8d:ba:87:8c:d1:7f:86:6b:ae:0a:a5:7e:32:0e:69:56:c8:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b3:66:94:7d:7c:87:12:57:21:5c:0f:f0:2f:ee:37:0a:1b:d0:87:62
Fingerprint (sha256): db:73:25:6f:1a:98:60:3a:6f:97:2c:83:79:1d:55:4d:27:69:47:69:a6:f9:3a:99:29:1d:e8:8e:41:82:70:fe

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 courses.superna.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for courses.superna.net

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

courses.superna.net

Other certificates including the domain name superna.net

(limited to 100 certificates)

Certificate

The complete raw certificate details for courses.superna.net in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGXjCCBUagAwIBAgISA98UB3YqpWyqJzftA32ym3MwMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMTQwODQ5MzZaFw0x
OTA2MTIwODQ5MzZaMB4xHDAaBgNVBAMTE2NvdXJzZXMuc3VwZXJuYS5uZXQwggIi
MA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC25nM4yFuPa5g1fPGx0W+9+kbI
JYXIweVVxkEKj6mL3Au8UYD4Kqke6pxGeqahfQhLfF4c/28gu/GeIBeFoiwtyTsf
l+79gR5GpBGcVWeWjS9GClTX8zby5CBLSKr8v2k+b2fgce/+aQc9QQ9tE0T5kRGo
rTsuyJIhS4e/J7GVhc6BpurOpdCViG80IHhCrXJ+Zn8anxO5stMHmwrIOcxEJZr9
ltGDihm8bFqFdXpk9EDeBxVMEXKLirsFR/fmJfrToXHKOXZ+CtNJIKXry3VY7XAX
f2Hkod3kQqWVXUizhXQDo6+cZk1MqOfTwP+xFO8SfrAjZqq1ORrxh5Bs/COiaNlC
TOhQEqD+W6be7WP8DGott4TJHwx43tS+DSRwZxCJWvIrUwWBIZ0Dp0jyoYBI6otO
ZJlZTDSK+W1abumE2BXUyn0DAPc1fyVqgU9yYudcQ8oqfYJqVqwXIAm+D48muPET
OitROtts8VE5GLLjuDpotiGYRJGnJYTWCYogGcSHtA1XjCv2WlA/iro/SD6+ZB6g
z5rotL8YyzbbCllIYldie43QKXxQmlLCO3uVhiBLO8V92pL74CPG/sloZuxo303A
g4rlH83Q2MKQWjvTleUeCW+cCV3Cfg6VscuCd1rdg34QYhWTongrZJSSSP5DSLM3
3P1im8HYw64Fo+T3vQIDAQABo4ICaDCCAmQwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud
JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW
BBT/lI26h4zRf4ZrrgqlfjIOaVbIIjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObem
RWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3Nw
LmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0
LmludC14My5sZXRzZW5jcnlwdC5vcmcvMB4GA1UdEQQXMBWCE2NvdXJzZXMuc3Vw
ZXJuYS5uZXQwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAm
BggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEE
AdZ5AgQCBIH1BIHyAPAAdgB0ftqDMa0zEJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvM
VgAAAWl7m2gNAAAEAwBHMEUCIQC/wIUX32dLIizdcUPFIjwJpvb/k2o6ysn+w843
+zT2xwIgTnOftYJx2KbOVaAFM8VVkAYZaL0ekTTwrjsdrOjB8Z8AdgApPFGWVMg5
ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWl7m2gNAAAEAwBHMEUCICnOX4lL
hxCK3dhvz2/ClzX9mMZ/F7FjPKYlc33rzCq2AiEArerNcw3D8B20qt500AGikZQs
sqAeqiivT9kriJrslEIwDQYJKoZIhvcNAQELBQADggEBAJmHC11BmxqibwiKKJWX
palKvDF04/zZGsxMjFkbr/sLcc4X81PihsAe6SZwtUoc3iKwfw08l1HmYoJ9R9hb
b5uABg1qgeHGkx3K4G40cA7yLSRcYYOfz+QH/o5z8uhYbBn3Cgfv7VQi5b2q2JJs
oAwsU2pPA1KPQAo7oOidGjIfLQ9Wo4iE7fNjHH/PIn25GflvoNo8g4c+rtDsSasn
hsUID1JJ6+rbi7s76fukhM/FQYR50Pm4vPxsELctWV7+QpblGeC/iVnV37/kJte5
pe6Y3mw52YsKrQXthzsS7MLh37EFyY0ci0hC2lG0irHPoZsw/8lkskMDbcFH0d3s
lAc=
-----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 337246448921346837804086719328351491420976
 . . . . . . . . [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 2019-03-14 08:49:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-12 08:49:36 +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 'courses.superna.net'
 . . . . . . . . [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 746167698203871747301268477965606741179289986125791709999591825013271869109327791063359292637141680268985948059328765399120123316817944870803411414646991727024828010153291889069079266976030841291331778634941054509396317960802046186218362737957205476120927068424949888597622244436361551623370963660701743262248708622538860162046105512628876831549540740928974682629547374647684150326049738193998593080063118437329161237299987719387529427553537739833837133571539130255425175795636228063749943025239650086564124907608214423098069714377121568167652765686795332162764306953859733323792231017434686085394746610664871700246687393374331812124512432651382762495014730824562679916317379151861152814761124004373304210140755198084784888027058282109592125585106172988074328470906954121302274355030092508122544020151276624196892482469086626148641797565997588437467938097370568112113775970903442528904656688599303716722745130921291735444650550314428975909717137304003012448913222730816195432926568669138453077589413904489723433387506149820802483941265876229490260980059745486843534610649536405928623440522495972033515350040856561396766180774379704582077128456006243704175505161979756764894069127286625091464293453327690561865896167779882413658011581
 . . . . . . . . . . . . . . . . . . . . [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)
							ff948dba878cd17f866bae0aa57e320e6956c822
 . . . . . . . . . . . . . . . . [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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'courses.superna.net'
 . . . . . . . . . . . . . . . . [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)
							00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc56000001697b9b680d0000040300473045022100bfc08517df674b222cdd7143c5223c09a6f6ff936a3acac9fec3ce37fb34f6c702204e739fb58271d8a6ce55a00533c55590061968bd1e9134f0ae3b1dace8c1f19f007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001697b9b680d0000040300473045022029ce5f894b87108addd86fcf6fc29735fd98c67f17b1633ca625737debcc2ab6022100adeacd730dc3f01db4aade74d001a291942cb2a01eaa28af4fd92b889aec9442
 . . . . [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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