DV SSL/TLS Certificate for www.grumpybulldog.ca

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the www.grumpybulldog.ca DV SSL/TLS Certificate

This certificate with serial number 05:88:90:be:db:0e:0c:7b:b6:ab:5c:fd:7f:90:41:a0:01:27 for www.grumpybulldog.ca was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for www.grumpybulldog.ca provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:88:90:be:db:0e:0c:7b:b6:ab:5c:fd:7f:90:41:a0:01:27
Serial Number (int): 482032231370805774622626999216295454441767
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: a5:8d:bf:4a:9e:1e:81:b8:cd:ce:82:b8:cc:85:37:bc:fd:bc:16:b8
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): 8c:96:92:1f:ab:16:2d:7d:a5:68:7b:4b:f1:3d:0f:45:a1:12:89:7d
Fingerprint (SHA-256): 7a:e7:f0:e0:59:06:78:f5:ee:1d:26:07:66:31:75:b8:9b:e3:86:b8:aa:e7:28:48:05:0d:b5:9d:a8:b9:f6:8b

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/40.crl

Check the revocation status for certificate www.grumpybulldog.ca
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for www.grumpybulldog.ca

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Key Encipherment
Digital Signature
Extended Key Usages
Server Authentication
Client Authentication
Extensions
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for www.grumpybulldog.ca in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApmDl6zcphE9TCCHZlkEp
8eo+CGv24OTtj3i5qR5LFuPKWI9s/IFTz5tsBNN8iK03ks6buNbciqWB2nyrJ0rQ
DKjvdzmvFtGxIR3gUzfGE/sxaITcpJXgRhwtrbDJXTIfsMzMGKWpFmES/qADQ3Bl
j8UD+47UifBi/R8+0TZ8TWbZhch3n2N7fbAuND/XwqPfERDZHWRYhX6rsiJ1w+9O
9YmUsl/IK673c8HYvB1echfB0+LrwOmeEy5Nhp3ga/nhZMpXesd+aqOLAWKXZvs1
UfTYnumY99tYhpTNUEOTuPJmCHLSqO7O01obk2i0Er6uyVb02LPR8KlnrW8in8At
+wIDAQAB
-----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 482032231370805774622626999216295454441767
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-12 16:17:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-10 16:17:36 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.grumpybulldog.ca'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 21003340868380591624616265875357894569028037746500406563964576326467079073414344608745031929758632402079928833781116386832605290413710874015793804209856930934912911477816984714189903789372933909714156271075560542771175462515832183852195164633031472097219308017180222024317106402841187617018993145620305835351300400997583186123469912211700589990643780112113286638455607436771341958776847270853482188784955104289589301838289774590423392962100303341885584461420763092335804563294052319021717939634931634595935073023502727293778945525842129225816540255727619386495977017287256136068425133354081504459564099321938229341691
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							a58dbf4a9e1e81b8cdce82b8cc8537bcfdbc16b8
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'grumpybulldog.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.grumpybulldog.ca'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 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://r11.c.lencr.org/40.crl'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000196c57f29740000040300483046022100a82079b1997b8db14dc2a664ea5522695669fe12b1ac184449a092a19b6988e7022100f46a0be34e11fbbcb9655fa94e6debc5bc7a553a0c3f04622af894412da4d61800750012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a00000196c57f313a00000403004630440220191c6ff71421ef78729c5cc92e0b9db032142845e00f275d13a15ce43c69574c022008ba37ddcad774e2ac4356b246324a51d98703b123fccbf4d57bd8be219e06ad
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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