oakslab.com

Issued by R3

About this certificate

This digital certificate with serial number 04:a1:49:d4:80:fb:b3:57:9d:1d:96:3c:ee:f4:e3:f0:c9:20 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:a1:49:d4:80:fb:b3:57:9d:1d:96:3c:ee:f4:e3:f0:c9:20
Serial Number (int): 403332741828028589240033945607546952796448
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 7c:f3:21:05:76:c3:6b:b5:f0:21:ba:e4:26:b2:2d:e8:52:db:10:86
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d1:fd:23:d0:08:72:ca:f7:de:ba:ff:58:dd:db:6e:f3:7a:f7:16:2f
Fingerprint (sha256): 56:5d:85:7b:2f:d4:8a:79:61:a6:8a:8a:0c:0f:35:e8:aa:fa:79:9b:d1:13:ed:37:0b:5b:fb:c4:5e:c4:d3:bb

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0AL2a+V3A+v9lIDXmWvl
Zddb5uCqodjq0+xYtaqM8lpzI/UDbIwqoXAfrlmqWRcoLRaniNlEiaMGsXqTeN8m
d+g+afmN0u7x3it/L/rX1ytQF2zsmGz5mrVXHIjXjDU9MoGUwVKCpt/jH7puAk5s
iRgSW2eaYLDh4Jf3Ra7d8sjQ6bkKBHFR096I26YNBIUROUKHE6PIZ8+sySTH85cd
gPJ9Hm8DUsZUTlsfLvPkpe6JtLzgiOzYnGwGHa0SBeicQrNQ4XNuObqAfUXfM7hi
ZnvNbYJsHbYjmaYNOHq66sXJEBYmeSx6GINiaFJWI8TVISfRftWx+1A1QivmztIW
ewIDAQAB
-----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 403332741828028589240033945607546952796448
 . . . . . . . . [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 2024-03-15 17:20:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-13 17:20:33 +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 26259028337493967213893115587189232155534125678412179270233292242107559577080498362595843222000199421510279382739672856771128363163723972892394556735977550592768000057272093490591968225251890719157477927418996891849497373693737922716421464665297084175794336932055059607708441709911773418425004641205135332111135000614081770138860356857382712165351415762847941911333271244095885635418328618599922670107822252876367058297824200771345696455786193193329454288814582624408283498084837833635245139088818585665337027515496046732868677446349434647680334966989369177864040823928509451516437092228427119495839992747871624631931
 . . . . . . . . . . . . . . . . . . . . [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)
							7cf3210576c36bb5f021bae426b22de852db1086
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e435829f500000403004830460221008638450e6951287ec726415e3e051cc4c90144d7a5dddd431900a3db5b7e2a800221009676bc31bc3370d2fbcfbb7cf2a8b3e5bb3572dbdf6ff0e97b0cb40125373069007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e435829fe0000040300483046022100904e7359e76251a5f2a8d43e2ff54e5eb37ebcc14812437740da184c1730c852022100d6fd92545e61b2f7c28e4830f6c8951f26262a6f938aaf6920f96dcba561e7c3
 . . . . [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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