learn.co

Issued by Amazon

About this certificate

This digital certificate with serial number 02:2c:f4:90:54:19:47:88:44:82:b1:20:4a:8a:56:b2 was issued on by Amazon.

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=learn.co

Amazon

Organization: Amazon
Organization unit: Server CA 1B
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 02:2c:f4:90:54:19:47:88:44:82:b1:20:4a:8a:56:b2
Serial Number (int): 2891877396171358995308544724046599858
Serial Number lenght: 122 bits, 16 octets

SubjectKeyId: e3:04:f3:29:93:eb:d9:ca:57:74:e9:2d:3c:2a:5b:ba:a5:dc:2d:2d
AuthorityKeyId: 59:a4:66:06:52:a0:7b:95:92:3c:a3:94:07:27:96:74:5b:f9:3d:d0

Fingerprint (sha1): 20:5a:9d:86:a0:c4:35:52:03:7a:c3:ed:d9:00:b7:63:9a:da:01:c2
Fingerprint (sha256): c7:dc:38:ba:c6:9c:92:d2:e0:84:1c:97:e7:66:f1:0d:67:7a:63:dc:f3:d4:76:67:19:c0:14:5d:af:04:76:00

Issuing Certificate URL: http://crt.sca1b.amazontrust.com/sca1b.crt

Revocation information

OCSP Server: http://ocsp.sca1b.amazontrust.com
CRL Distribution Point: http://crl.sca1b.amazontrust.com/sca1b-1.crl

Check the revocation status for certificate learn.co

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for learn.co

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

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

learn.co

Other certificates including the domain name learn.co

(limited to 100 certificates)

Certificate

The complete raw certificate details for learn.co in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAy0rrCVEgUKZR0i5M5fal
yU320VuYKURJY2XZPq2G0XMmzjf/doRALGYxXxKRMP3dhC5+VU5MCOl5kpHerJ3W
l3jAmEkMdaZwbuEVdSsSoZ3ILmzeXcic+Q4+X+TEtuhb9kKQXG2Housk3fqHqO6+
6HbhBfo2gUJ13i+cfQ5+dIpf63l7yRYE9Oci1iJdXq2LAo1XK5RXKUUdQpmhxPUf
sVVyYKF9alozuV8o4ayJQ3i2EemEfMfwygIwKsKqT8IM/7T5mR9vSfM0q5cexuZW
SdsuegQ8phB5bt64wssqyjZQYyrogzvl3kZ/cBawIx+v+AAfFssb0IoQftFQzTHH
iwIDAQAB
-----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 2891877396171358995308544724046599858
 . . . . . . . . [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 'Amazon'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Server CA 1B'
 . . . . . . . . . . . . [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 'Amazon'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-04-02 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-05-01 23:59:59 +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 'learn.co'
 . . . . . . . . [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 25663319405504894449502645518598521261581696024746781412891417176435296669355297317041559970646068545704601148641453541817365054375315508586253884239140604949815497704280513667009879607410196322519233837476308460208259532380433709351653776564955060731374702601768235243482705500685616355544837746611871222440970566192523614756340532480736939837710525594731296117956171986186915110885466495481842175087910575695076150226090022000808011720652177582760235868214726646783328504791526743439947100502208039387881592494249241019771760456229727105935583849162535174347522999712350142820114422055617114599334493765812333168523
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 59a4660652a07b95923ca394072796745bf93dd0
 . . . . . . . . . . . . . . . . [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)
							e304f32993ebd9ca5774e92d3c2a5bbaa5dc2d2d
 . . . . . . . . . . . . . . . . [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 (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learn.co'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.sca1b.amazontrust.com/sca1b-1.crl'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (105 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.sca1b.amazontrust.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://crt.sca1b.amazontrust.com/sca1b.crt'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (366 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (362 bytes)
							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
 . . . . [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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