d.elearnlab.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b1:59:e4:24:d8:fa:ec:7b:63:fc:b3:d5:05:0f:f5:a5:a6 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=d.elearnlab.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b1:59:e4:24:d8:fa:ec:7b:63:fc:b3:d5:05:0f:f5:a5:a6
Serial Number (int): 321686322622953137402462259494721653417382
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 18:86:0b:0d:ed:42:77:23:1a:f9:02:f7:af:62:29:ee:54:27:66:a4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 47:ad:21:fc:27:d1:0b:80:9f:31:9c:bc:48:53:6f:ab:36:c5:80:ad
Fingerprint (sha256): c9:11:68:f7:f8:cd:94:7e:aa:53:9f:8d:de:b4:24:fa:85:70:ad:ab:f2:c4:37:07:3c:06:e5:10:8f:7d:09:0a

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 d.elearnlab.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for d.elearnlab.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

d.elearnlab.org

Other certificates including the domain name elearnlab.org

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globalmba.elearnlab.org
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d.elearnlab.org
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pilots.elearnlab.org
hubbik.elearnlab.org
blogs.elearnlab.org
pilots.elearnlab.org
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blogs.elearnlab.org
devel.elearnlab.org
blogs.elearnlab.org
hubbik.elearnlab.org
d.elearnlab.org
devel.elearnlab.org
devel.elearnlab.org
gestio.elearnlab.org
pilots18.elearnlab.org
gestio.elearnlab.org
blogs.elearnlab.org
blogs.elearnlab.org
pilots.elearnlab.org
elearnlab.org
pilots18.elearnlab.org
pilots08.elearnlab.org
blogs.elearnlab.org
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devel.elearnlab.org
hubbik.elearnlab.org
*.elearnlab.org
hubbik.elearnlab.org
devel.elearnlab.org
globalmba.elearnlab.org
gestio.elearnlab.org
*.elearnlab.org
hubbik.elearnlab.org
globalmba.elearnlab.org
devel.elearnlab.org
d.elearnlab.org
devel.elearnlab.org
pilots.elearnlab.org
blogs.elearnlab.org
gestio.elearnlab.org
globalmba.elearnlab.org
hubbik.elearnlab.org
hubbik.elearnlab.org
d.elearnlab.org
d.elearnlab.org
pilots18.elearnlab.org
elearnlab.org
data.elearnlab.org
d.elearnlab.org
blogs.elearnlab.org
d.elearnlab.org
pilots08.elearnlab.org
d.elearnlab.org
pilots.elearnlab.org
blogs.elearnlab.org
gestio.elearnlab.org
devel.elearnlab.org
elearnlab.org
*.elearnlab.org
pilots.elearnlab.org
d.elearnlab.org
hubbik.elearnlab.org
devel.elearnlab.org
gestio.elearnlab.org
globalmba.elearnlab.org
devel.elearnlab.org
devel.elearnlab.org
pilots18.elearnlab.org
hubbik.elearnlab.org
blogs.elearnlab.org
blogs.elearnlab.org
blogs.elearnlab.org
hubbik.elearnlab.org
data.elearnlab.org
hubbik.elearnlab.org
blogs.elearnlab.org
devel.elearnlab.org
blogs.elearnlab.org
pilots18.elearnlab.org
globalmba.elearnlab.org
hubbik.elearnlab.org

Certificate

The complete raw certificate details for d.elearnlab.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw5VuISuFRzLdy8lAHwh9
pHouVKweWNRZw2EjxxzdagC/8DuawOFQBijl68Kjzj9Yo/ShI7g8uhE4qtRSKOdm
FeEyKbYhyYuHGCW48aZ5MDAxfLZH41P20DHzXaNJHo/qWl7CMr92PDtQaRJOxcFi
jCTaMLAKnKkIt60lTEdgcfFI1gEhCBnSY8w1Ap7d2ADIArjMjNDtrIZTfaefY38f
8WLnrYA5U/yZvV8BTSLSe7h3yGxc2YbOEsSEoR+m+X6zELu+IIWtOF/GzglNfahh
Wb85415gDO9oV5tG9tkcixcx6Uw5i8hi6T74N3jqXcBq9Lcjnu7/Gtlqx0gO/nKg
ZwIDAQAB
-----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 321686322622953137402462259494721653417382
 . . . . . . . . [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 2019-01-24 01:35:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-24 01:35:35 +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 'd.elearnlab.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 24690156243206099009189140521876557881808833465069618705220389121770774162638693365415443012705717141392585859204021639065852675470849238260178327755726496469185555138300661095507552642627928167849243356138140480602893469908821588823877065334884353890232647793743022848911432026171876994078231216169722550103694543702350585066758234733371066387118948272911182669114135902218540904968463121602646735991267737290800229146873569305679712247103584345358120250431265551982296293279340717839593995594644761194103151167497048099962644648746909153052326813693996440184265708234988978464563474413524256195767962248779874345063
 . . . . . . . . . . . . . . . . . . . . [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)
							18860b0ded4277231af902f7af6229ee542766a4
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'd.elearnlab.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 (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)
							00f1007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001687db6735f0000040300473045022100be053d7fde2d5e8fbf986785759e823ce06e113864063a940c25bed3894d04c10220287495303cb847e2efa3aa6a2f01ea393dbc542850b07c53d46b591d612d7e5300770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d000001687db673a80000040300483046022100bf3b606b9bbe6963439a69f4abf7638accf8bdb41efda09086a3a0831a06c1fb022100f6f66058d51ccc8b56e69018e757536607ded1fed9c4124fd229d3d4fcaebbeb
 . . . . [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)
		00233ed36bdc4cd13b0a9b4d321142eab91ac41593b8afa1a5c0a67736d0a7cd8e1e656bec2419cfdaadf12ce3691d024270d3221321e05cc23a3464f3defb128011031c36671fa250f9724969281f240758c1f9891d50017cdc949180ece0f0b689ff6daf0feb766ee485e34d9239064c8501245155a55f5034f70fde7bfe4d6bddc197225c8c05e253c2e6d38940e084a251f65c54e7f5ce3a57c06a716bf87c20b2fc9ebe52bef46cc1e0b77fe3e712e4b1437bc909aa88f8847030a9b425b969a406fe53437f782ce2750c9b2c3166383d8c662983633bf5546e43c3b689017bd085b2c65d100673a8d417ad22d589c00f1e2ab16adb21ecb810bc49c246a4