docs.cs50.net

Issued by R3

About this certificate

This digital certificate with serial number 04:bb:aa:ce:1e:4e:bf:87:7a:1e:eb:44:de:e4:c7:ff:71:cd 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=docs.cs50.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:bb:aa:ce:1e:4e:bf:87:7a:1e:eb:44:de:e4:c7:ff:71:cd
Serial Number (int): 412308985328404133331255096168421288538573
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c4:17:64:0a:bb:a6:15:e8:0b:70:c9:69:86:3d:a3:4b:bb:00:0a:0e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 91:86:63:75:bb:5f:64:f5:d1:72:76:3c:1c:46:ac:67:7a:7e:a9:fd
Fingerprint (sha256): af:2d:25:ca:51:7b:9a:eb:9e:c1:4e:39:f1:a1:70:7b:70:6f:51:79:90:60:2a:61:ab:8a:99:59:9c:74:be:8e

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

Revocation information

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

Check the revocation status for certificate docs.cs50.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for docs.cs50.net

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

docs.cs50.net

Other certificates including the domain name cs50.net

(limited to 100 certificates)
www.3scale.net
www.3scale.net
ssl.smugmug.com
ap.cs50.school
docs.cs50.net
manual.cs50.net
discourse.cs50.net
ap.cs50.school
cs50.net
ap.cs50.school
www.3scale.net
ssl.smugmug.com
www.3scale.net
discourse.cs50.net
discourse.cs50.net
ap.cs50.school
docs.cs50.net
docs.cs50.net
docs.cs50.net
www.3scale.net
ap.cs50.school
ap.cs50.school
www.abphotoshots.us
ssl.smugmug.com
ap.cs50.school
ssl.smugmug.com
ap.cs50.school
ssl.smugmug.com
www.3scale.net
www.3scale.net
cs50.net
docs.cs50.net
cs50.io
docs.cs50.net
www.3scale.net
discourse.cs50.net
www.3scale.net
cs50.net
*.cs50.net
www.3scale.net
docs.cs50.net
ap.cs50.school
ssl.smugmug.com
www.3scale.net
ap.cs50.school
discourse.cs50.net
www.3scale.net
www.3scale.net
manual.cs50.net
docs.cs50.net
ssl.smugmug.com
discourse.cs50.net
ap.cs50.school
ssl.smugmug.com
ap.cs50.school
manual.cs50.net
cs50.net
ap.cs50.school
ssl.smugmug.com
www.3scale.net
cs50.net
www.3scale.net
*.cs50.net
manual.cs50.net
ap.cs50.school
*.cs50.net
discourse.cs50.net
discourse.cs50.net
capture.cs50.net
ap.cs50.school
discourse.cs50.net
cs50.net
www.3scale.net
www.3scale.net
ap.cs50.school
*.cs50.net
www.3scale.net
manual.cs50.net
docs.cs50.net
draw.cs50.net
www.3scale.net
www.3scale.net
www.3scale.net
www.3scale.net
docs.cs50.net
ssl.smugmug.com
ap.cs50.school
docs.cs50.net
cs50.io
www.3scale.net
www.3scale.net
ssl.smugmug.com
cs50.harvard.edu
ssl.smugmug.com
cs50.net
www.3scale.net
discourse.cs50.net
docs.cs50.net
www.3scale.net
docs.cs50.net

Certificate

The complete raw certificate details for docs.cs50.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyyq6j8BEyDnyNs08gDCY
h0x4Di23PJq7WHlYiOfEc4wvczH2yEXXUXIlvBqx0n3mDrzfWDu4C4IN077ORVAc
27rNJHVpJy0Wh3Q0AqNgUQDrDqPkxA4z7sf5bVKBbW0f9FdRfxedcHgmPkQDmsmL
utlECLlpvV7GfKt9xZPoVZiK0dJYwP/PhquK3+kT9h15D2vBR8RcWtSHCoRJLDlw
DGJvnO9nwI1pTkz4jmIJdTbNLzww3R/9JCXFR6IZ/A0OJhSrbFtdjc+IOeb5BrXr
6mYeD5gHNMzJxDdLGu1y8nTnRdk2pDMjbvgu2vB1Gh11qfyYNavfL2mDvtb6BcCl
rwIDAQAB
-----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 412308985328404133331255096168421288538573
 . . . . . . . . [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 2020-12-13 04:00:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-03-13 04:00:11 +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 'docs.cs50.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 25647446242979334547190634546045537711822324979544695470193493069451194307094416856101358159183950188481380249500067345216236764606666335492302450959280309240831734091384648782791154211039023029387254962337780919341502018524540764006682991008885209627922285442130922861258962484331391047729039325508961480172771510276640287626562282320635868734191713480125558442516241301921531677264667518572201703466347406104335978830578121706094435271555124125016760425509754760145837975213297668352765538267708318119402728599907932906583315857145264288271567194425348493754162184543931357082466805303467473405843853087274304578991
 . . . . . . . . . . . . . . . . . . . . [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)
							c417640abba615e80b70c969863da34bbb000a0e
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'docs.cs50.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076005cdc4392fee6ab4544b15e9ad456e61037fbd5fa47dca17394b25ee6f6c70eca000001765a78708c0000040300473045022100b1f3f846a1d51bfb0ee998d6dc154daa85fb754a39194ff83f3fcc8d1f7c6c4d022041c0469801eb1cedad34a2f52b783bb49961bba8cc5eb99c48bd5c4a5064c501007700f65c942fd1773022145418083094568ee34d131933bfdf0c2f200bcc4ef164e3000001765a7870780000040300483046022100c62f268d1441b2083576dc4035748ef94b2eb6c732425ae0f59f8410d68c4cdc022100c378281708d6b9b185db514b9d4282765e1fc0a2eafdd6aeccba4d42d043a016
 . . . . [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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