oakslab.com

Issued by R3

About this certificate

This digital certificate with serial number 04:a1:82:ca:9b:74:ef:e9:cd:2d:5a:ff:3d:9d:06:a4:eb:ec 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=oakslab.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:a1:82:ca:9b:74:ef:e9:cd:2d:5a:ff:3d:9d:06:a4:eb:ec
Serial Number (int): 403408456437767747286406007936359558605804
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: fa:5b:d4:d8:7b:b2:1f:c2:18:61:9f:50:12:d2:7f:43:b2:4f:40:6a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ed:00:b5:5f:ce:f7:e6:aa:01:c3:18:17:e3:c9:6b:09:97:42:bc:e2
Fingerprint (sha256): 20:1c:c5:ba:0f:32:27:5a:8a:65:6a:42:11:bb:75:0b:61:08:74:6c:b8:d8:c2:0c:ab:82:b3:17:d6:fe:92:a0

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

Revocation information

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

Check the revocation status for certificate oakslab.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for oakslab.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

oakslab.com

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oakslab.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3pgvH0SV2UxIZsL9m8O7
2MtJJaBWEnApAcS+y+nivfntVxXVvHfszxwnE4RZR1JfzLVfvkVhJvjQZZ1QBAzN
nXed1S7Ba6aa+RnOiKEjJR1zPL6+MvLGxvc7VfvMABfYD8i6qTqjeWKQ6yoWpQy3
zf4MBrtdVOZ9oWGtDRQ6yPMRV2CwIBFgcMP1XDmWf4UOlYHViK8Fcdk+NogKDlHu
Qhz41B3Fq6zxHA8+mA6zKmtPRs7uw9M4QWXEWIwlbuf+z0xUCaiVvrpbqDAkNwc9
AKw3CZCyD3iKTrx4FKlqzgJqT+hbPF8yRcWaKDKzjjEIOJ1IjnalM0alqcP8AGAZ
xQIDAQAB
-----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 403408456437767747286406007936359558605804
 . . . . . . . . [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 2023-12-28 16:19:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-27 16:19:06 +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 'oakslab.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 28099948464762904006772771175034915247999960069198597710688101611115123337533987882543597791992002779240939156027140639759797704534718008177852387853280215029724833784822875179937739380106052045258258807486337450338380909507038404507174071165527211599942791416381881768129361146764486761924781477786387959927855234614806786229868107831301491737883716061759009028967550666079833527318331599022817123507647942062546735880785463888804838065999148144722416757211055820608149920526177528419522874602660266732264674487185611329149061718304541668576043327146549164060470064986727763935447968328306983434038964955839499082181
 . . . . . . . . . . . . . . . . . . . . [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)
							fa5bd4d87bb21fc218619f5012d27f43b24f406a
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'oakslab.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cb16fdf080000040300483046022100e7bd31a523fea0765a8494d5389131f4cc2b493345af2762e5f800eec3098751022100f0c5faac979924749e75f9cd85b98182650252f912a754548df553c54ca1de3f007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018cb16fdef300000403004730450221009b97d7d9be560e59dbaba6415da4accee9483d23b43c6c400f5b24ac129055f0022053eae7e9e807c2e6b29ab596e45d05a7804dcd751f3c4cd0394ff596c08b4ccc
 . . . . [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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