launchschool.com

Issued by R3

About this certificate

This digital certificate with serial number 04:1d:9f:04:b5:23:8f:44:75:ec:22:f0:bf:a5:6f:0f:dc:51 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=launchschool.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:1d:9f:04:b5:23:8f:44:75:ec:22:f0:bf:a5:6f:0f:dc:51
Serial Number (int): 358528704062198900859220293580112761183313
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 92:ae:a9:83:c2:8c:bb:47:b6:1e:8c:9b:f6:8f:c5:6b:84:ac:f1:7f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 6f:20:c9:cf:dc:78:7e:9f:d3:1a:f7:dd:fb:f8:e8:80:7f:54:c1:20
Fingerprint (sha256): f7:16:23:fb:8d:5b:88:4a:63:1a:14:a0:d9:8a:87:88:d7:d1:1a:6c:a4:17:5c:9d:50:64:ca:1c:b9:e0:b1:30

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

Revocation information

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

Check the revocation status for certificate launchschool.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for launchschool.com

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

launchschool.com

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Certificate

The complete raw certificate details for launchschool.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6MjSzzB3TyF2vNY1haGw
/XvZ0Zyvt/8SR/ZgRGxlhZpGbr4sAvbgWADEdtEqlpmJGzcaeR34P8gnYC/1hpCA
74um4JUNgfirU6Y7EDz9QLR6775c3wpx9UjksjxbvIS7Rs+qXSAFl5DAIFmc+Ppo
S3XVJlbak0mjKD/lZUGZYDoQG9FN6Tj01hcMDpAvESWaOtYCEf+WJ1BP5EcQERGv
f6rTh97MadYmyAA5T96R96NRMiUm9goG493WlWADX1ELAk7a1oRCBvdfK3Dwjo2I
JjjGOOHYwCAZ1qjMANEmOKorNI326Mp+mPN51u7zJjDtya2rf3QoeAnCbK2ec8sR
jQIDAQAB
-----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 358528704062198900859220293580112761183313
 . . . . . . . . [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 2023-11-07 00:05:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-05 00:05:16 +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 'launchschool.com'
 . . . . . . . . [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 29386316498023532862779649823125839717756943149708348072490186916385196009953914475599333703836738448776730489458390460751858532407786986388451502198480478281398660986450255424904957736815132959339219774926481937985527860156682848364055933357518524957356234418554223680190197945271895926206611288211356187653875806387046706056333796249471086849837317832977074712879148452923926532903907761037117170908113499197641004013296799532858989611468151974909753515374776930430847441853947132158651376573991015657739149569518021905460112387692150412820135996448075795381155221436019226662864989719634064182624137468913457500557
 . . . . . . . . . . . . . . . . . . . . [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)
							92aea983c28cbb47b61e8c9bf68fc56b84acf17f
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'launchschool.com'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ba74ff6830000040300473045022100f2187b23cde038c488b5422b90f3a8ef68ca34d71bf4ababbf4a632db091e70c022016f583327927e43e96e20b72533faee42e6b0c656b5fed81655ec10b31099c8500760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018ba74ff6e10000040300473045022007e8f72dcb529a48d4356624ebd81c6773e03c7ca7ce3c8f2ba564edfb3a0825022100ee5d4370d85c510941f4654bacb47a90fb0c4369fa751b4e35eb6f6a3201578a
 . . . . [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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