courses.superna.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:b8:4d:9c:ff:c3:ab:f5:db:a9:9e:8c:ac:47:9a:b2:85:5a 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): 04:b8:4d:9c:ff:c3:ab:f5:db:a9:9e:8c:ac:47:9a:b2:85:5a
Serial Number (int): 411164264981996193601370113399522319304026
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d2:96:3a:cd:04:3b:c7:c9:62:b5:5b:b5:88:11:ec:a5:1c:00:0a:4f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a7:53:b2:62:7b:f8:3f:d1:f7:32:f7:08:e0:82:f8:d8:fd:52:1d:aa
Fingerprint (sha256): 2e:51:9b:cf:b8:b9:04:3b:bb:2e:4e:cc:a9:1d:1e:9d:2d:e0:e4:76:3e:a2:f9:9d:d3:a8:4d:6e:32:5c:bc:74

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-----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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 411164264981996193601370113399522319304026
 . . . . . . . . [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 2019-08-14 20:04:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-12 20:04:52 +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 959295928976837973984698535332174942895339413881940363848366914467113236250933648686229621337539547337620088020483958619613244470156737287557779841278645546578809613392608642923956564274761836872792137323215369212503392654266732301537891363649450980133428527257316840750853775026409411474489085231460855410738072889935170009125893536500643487179633547289360868769323795459401564592520865980351628346149166859340017174567032034210085093915004935034104577490936741170671257170972521644626126784329781570576094376170569914213785530730519630242317318967603746529278568585079451089013325804672397783373496205994477473922088909507283802236992639344870510487061387627422340583245807272514765687769780059343261586174220272370673258497464939384071394188368234778924368465739648985487360466476469081646382916849429323853944579311675609946177617882035730372459425125797063957197540136118057137838312556027618439699343141500196665277175269329158109838710826573068791411611102380654398008894552585333388846182917346569881888321740919253456190878941984979242166130514538188169358094847507906679557834823663994874548957880407049115049113435475642944277719623118424472932962748475601441956079125369136567776973090275804784344726896886841814097648773
 . . . . . . . . . . . . . . . . . . . . [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)
							d2963acd043bc7c962b55bb58811eca51c000a4f
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c91f2a0c30000040300473045022100fcc15f7d10bd644c84e8129fa55cd569554bde2d2686685115913529c130ded402205c071c8b7f1d7a273b545fc0f99e3570074706fbade14eb9fb1159ea53919baf007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c91f2a0c5000004030046304402204397b4e2018b5e6476804acf8cc015c2f5734bfff5ebdb04d28e009f75151591022051fe5d88f247555652113d970120950d131a864aff9e855fa411140d17b0302e
 . . . . [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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