www.42nerds.com

Issued by R3

About this certificate

This digital certificate with serial number 04:7e:23:4d:ff:a8:28:0d:56:d2:b4:84:5a:f6:e3:bf:70:c4 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=www.42nerds.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:7e:23:4d:ff:a8:28:0d:56:d2:b4:84:5a:f6:e3:bf:70:c4
Serial Number (int): 391371649931126987980171045660962005676228
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 87:c3:1b:7d:4a:d7:40:88:91:fb:32:84:6a:b1:f6:9e:63:5d:cd:1d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c9:68:9a:fb:39:f5:7a:10:ce:21:8a:e7:79:4e:fd:91:40:2f:06:9a
Fingerprint (sha256): 32:3b:4f:9a:c1:b3:59:06:50:68:cc:8e:c9:47:d3:f9:3b:00:af:1e:bb:c3:f0:70:0c:0b:ac:66:2f:12:4b:8f

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

Revocation information

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

Check the revocation status for certificate www.42nerds.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.42nerds.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

www.42nerds.com

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Certificate

The complete raw certificate details for www.42nerds.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArh4oW/Uo7goKEM8vitXJ
01QXF+CQoG0QBDTUEl4YmSQJ4w4/Cx9A+Y9UnHRNlGoZ3jKdkMSATbOJNUJtaEsO
8NlsdnrBiNPB9cRGolY05AszZWoxHSpaNY4TSYWy8dSNfSpLeKiI8a3g8AvgfQ6K
Tpo3GgGReolrVLnF0ymgsCXsUzhLfZtnM3WaTP1aOknHC/kJnhR0dEhe4T0Uex7i
vYSrpObtxR2/ODW+hBygqOzgJvRNgq/Uz8a8GXxzDwrFPqIwbPo6t8pTvR9Fb/PC
6DJENrgf/POM4qW66GKPecRHtF9GPqOwQYQJqafEmYNd6GM8Tc7a18al+TKD0N8Z
DwIDAQAB
-----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 391371649931126987980171045660962005676228
 . . . . . . . . [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 2023-10-27 15:29:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-25 15:29:11 +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 'www.42nerds.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 21980336357129297190287311037412059539711836428135099306734876677330087262072190113136581587534009449073547039903311459358686399343429560666473976511677390737012594951170175214342763876868639506887642612648880690728070409074536313394175606759468009514376813057878195234030193511688276120113632037189818965867685553464956973220945749273583604896932105142840040495149673657755369114636216352649662094830855649487659924941079885563765767739607568250958474782067755665614428684837971647087749845822757606033822773334872281921948544400390773087936634455320877658523562918054528189984098582165975740182173433582219270494479
 . . . . . . . . . . . . . . . . . . . . [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)
							87c31b7d4ad7408891fb32846ab1f69e635dcd1d
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.42nerds.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b71f7e2ed000004030046304402203178d901c405b9c15c035984538b39e093f88dd1111305b48cf8b110ad43de1f022055733c31599e1259081d16c75dd9a8e26e42b6bf2344d3bed2ce1666e2c530bf0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b71f7e2d90000040300463044022067ffc4a5eee7da5c59688a152641dece4076eda0b4f61277e8f48a4f2734b58702200edd5699919775b9ac99048cec4c0fd9e7a0806e5e600f3520e4170b19755466
 . . . . [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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