cuonline.edu

Issued by R3

About this certificate

This digital certificate with serial number 03:6e:ef:52:a6:8b:0f:59:77:42:cf:9d:cb:1a:df:f2:e4:60 was issued on by Let's Encrypt.

With 5 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=cuonline.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6e:ef:52:a6:8b:0f:59:77:42:cf:9d:cb:1a:df:f2:e4:60
Serial Number (int): 299086032793816424898731810799178323518560
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 04:44:6a:c8:a3:19:d5:b1:4a:73:7c:58:7f:b7:f5:6c:39:01:b2:62
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f6:e1:b9:ba:10:6d:ad:d0:30:b6:0c:b4:54:b6:08:3c:f1:1f:b7:6c
Fingerprint (sha256): b0:c7:0f:46:32:b5:8d:68:37:d0:ff:53:0a:c0:9d:00:d8:ce:2a:69:27:e4:61:17:b8:00:c8:d7:a1:8f:18:62

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate cuonline.edu

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cuonline.edu

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

cuonline.edu
online-d9.cu.edu
online.cu.edu
www.cuonline.edu
www.online.cu.edu

Other certificates including the domain name cuonline.edu

(limited to 100 certificates)
cuonline.edu
blackboard.cuonline.edu
mediu.cuonline.edu
cuonline.edu
www.connect-a.cuonline.edu
cuonline.edu
blackboard.cuonline.edu
www.connect-c.cuonline.edu
cuonline.edu
cuonline.edu
cuonline.edu
cuonline.edu
apps.cuonline.edu
cuonline.edu
cuonline.edu
cuonline.edu
apps.cuonline.edu
www.connect-b.cuonline.edu
hosting.cuonline.edu
connect.cuonline.edu
connect.cuonline.edu
www.connect-a.cuonline.edu
blackboard.cuonline.edu
cuonline.edu
www.connect-b.cuonline.edu
cuonline.edu
cuonline.edu
thewolf.cuonline.edu
thewolf.cuonline.edu
connect.cuonline.edu
thewolf-dev.cuonline.edu
cuonline.edu
embed-tool.apps.cuonline.edu
cuonline.edu
cuonline.edu
cuonline.edu
www.connect-c.cuonline.edu

Certificate

The complete raw certificate details for cuonline.edu in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw46iRMF7hwNtVI+uKl5U
F0CD5U3UkQMeBF8svfU9dGopQU40Ing2QVq1B+BFMG1Mn7ICzhEdYaQd/8z2o4yC
SvEOruHHbvRx9j8NrkB2VDdThoomFKEa0Ycr+N7Jt9BiGuqfFFcgkf3J61GgtdOf
eb3u1E1vLfFD14HJmJGlDtvFwp7KtZmSuKnUDvttZApeghzlw1S+QrS7sZo5epN5
As25V4MVnW5dTJFTfmhnbB9vkhJDh+O6DeLYszX0dSxVrsGI66gIDvk8vwZ1a2is
lILGQ2WDC/2oWV2R+PvWHZuUKqzLGtROWGuvZLR0QziNDryF+cVGICsOtMyOuvv4
ZQIDAQAB
-----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 299086032793816424898731810799178323518560
 . . . . . . . . [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 2022-12-06 21:51:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-06 21:51:07 +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 'cuonline.edu'
 . . . . . . . . [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 24686804846986700463286235473113579310640311389133520587690101062602581528438869452339616892952701902849061179936484875175962958584343852540185544183047237885328788321992471394861784671407872629842251491403749912828485536459849583589245555154424957554500881276697578384568150008763221433348736210875490343848174039032910683409070497266386346837523561884554602537558352214849828580677730541219147370984863199779155273255284942666036956568962165193514919553059246300356407560953783348314569168119667241859434381348711752591025577632034019588909291610597210916265772008296336673389410930207470033159467095714263857887333
 . . . . . . . . . . . . . . . . . . . . [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)
							04446ac8a319d5b14a737c587fb7f56c3901b262
 . . . . . . . . . . . . . . . . [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 (86 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cuonline.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'online-d9.cu.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'online.cu.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cuonline.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.online.cu.edu'
 . . . . . . . . . . . . . . . . [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)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000184e9a2c354000004030047304502200ca4d76d861b2fdf28896eae3ba019273203449535c463f583810abddec6969f0221009bfff4d48c8c5bf643bab68e66adad7f7d91560125ffddf11dcfe13e0921a385007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000184e9a2c35d00000403004630440220536607eb9c0c8d48acc674871b5331822587670f79ee9c1177fd117ea8c2b8a4022024da5f0121e5139faed28f17cf5326209891bdd48a8e7ad6bb8952061345eabf
 . . . . [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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