www.depthfirstcoding.com

Issued by R3

About this certificate

This digital certificate with serial number 04:bf:64:4d:6c:70:d3:15:95:eb:7e:8d:82:ca:7e:89:1a:71 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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.depthfirstcoding.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:bf:64:4d:6c:70:d3:15:95:eb:7e:8d:82:ca:7e:89:1a:71
Serial Number (int): 413576400614815950705487162790863014795889
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 58:c9:b2:aa:68:e6:a5:48:cc:d8:2b:e8:42:b2:bf:7f:be:45:66:68
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 47:91:f9:a4:3a:fa:59:fd:c0:5b:ca:8c:10:25:6b:df:37:95:9c:98
Fingerprint (sha256): b5:73:38:b1:74:40:1b:c9:18:6b:24:5b:71:6b:aa:f4:17:57:05:59:ed:86:a0:fa:19:61:7c:cf:2d:95:38:a0

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

Revocation information

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

Check the revocation status for certificate www.depthfirstcoding.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.depthfirstcoding.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

depthfirstcoding.com
www.depthfirstcoding.com

Other certificates including the domain name depthfirstcoding.com

(limited to 100 certificates)
www.depthfirstcoding.com
app.depthfirstcoding.com
service.fitnessdoctor.com.au
app.depthfirstcoding.com
www.depthfirstcoding.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmJhY6+zLtneB6HAOhyIx
79JjY2cBnJBOEBaUnPUZtgUwVraCQWLUMQt5wNThwTYTH1xwFiHQHFMTjDwMjF0V
R/jHlClBj8Ljsim2G3eNqHPq2GORN9ImUGGhBL36diIGpaA93AdLj7cGJLYXki7J
rtwWLCzDbJQjLZ+d1EDamCY9Z4c3tkyko+5SMeOHLO047nCltZh9w4eW+y5FbKJs
JP9jQrbkfNRfa5ZzJHoMpYlohvFxA3lTDogcblql8IAMZg2koiC1uQkcADWPPImn
ioxOV/0eKBk6Y9BWA+n1Mg03QD+akHEz19e0fkFItAWqjvdlNoeHZsr/bYND70is
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 413576400614815950705487162790863014795889
 . . . . . . . . [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 2024-05-03 22:11:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-01 22:11:28 +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.depthfirstcoding.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 19263347633048637904692409058500491957070341204876476874983828893421060284081528266002883381108131736172778098833779461216977020764112095699108764643897576175258787597583012761752311375605925721305183168406526961070832150690960029045816785206624063972810366922014338772688300000899628727731593792290148494731204999571886928243242555312269941438653443904869106920591101460150914693266258075324063200561571344232505460652570727187152655534343387663918531899742417430524850684012711339995500442655256218389876579261753188956877546899194731245476235443203379388615826237123766274333248477776287536702101206849220837420173
 . . . . . . . . . . . . . . . . . . . . [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)
							58c9b2aa68e6a548ccd82be842b2bf7fbe456668
 . . . . . . . . . . . . . . . . [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 (50 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'depthfirstcoding.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.depthfirstcoding.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018f40ba1b19000004030046304402207cc113ef1e059b7f00363cb191e60cac379882ecddc76240b11b1a54b99c1d4302203978c21c46a8f72813f41624c29c14dca6154099f8b91cdb240b547f4d7e46f300760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018f40ba1b1d0000040300473045022100e3273b6c5c25c7a1e6e339cb638ce3c16419e6bda5ebc68005e994a20493bab4022012f8b7bbb5b1e49d81425070587c5da2a71fa2e34f5721017b81772204f3dac3
 . . . . [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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