cuonline.edu

Issued by R3

About this certificate

This digital certificate with serial number 04:c6:b5:78:05:f2:a6:22:95:61:42:a2:48:f5:dc:ca:14:f7 was issued on by Let's Encrypt.

With 6 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): 04:c6:b5:78:05:f2:a6:22:95:61:42:a2:48:f5:dc:ca:14:f7
Serial Number (int): 416066265840883575971800056618365651391735
Serial Number lenght: 139 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): a4:3e:cf:d1:58:3c:a1:c7:18:0c:14:cf:8e:eb:66:89:73:06:86:29
Fingerprint (sha256): 08:d8:1e:c4:f1:f7:b8:a2:56:eb:03:9e:40:93:19:80:10:9d:c3:d9:88:88:09:33:01:da:3c:58:fc:2d:a3:a2

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

6

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
cuonline.ucdenver.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 416066265840883575971800056618365651391735
 . . . . . . . . [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 2023-01-25 00:02:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-25 00:02:07 +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 (109 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cuonline.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cuonline.ucdenver.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000185e6724d7a000004030048304602210084e5102dd9e8b22994061efad421e43f1d7432d210007e6674e2e9d26994baba022100f22948ebc4e1f185043e57a9de3ad1a14c3acbb87c057714aabc0fe79c2440200076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000185e6724d8d000004030047304502204265bb8a6253e5ded5eb6ec25d4050ee5aaf511cb32f66523ce159f20a3d315d022100fa173ed4efc6b3deb452a9fe802b860e07318b9899b920687db1a167b80b9868
 . . . . [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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