DV SSL/TLS Certificate for guillaumegourlaouen.fr

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the guillaumegourlaouen.fr DV SSL/TLS Certificate

This certificate with serial number 05:0f:eb:2f:23:81:07:50:3e:24:c3:03:53:83:bb:50:85:44 for guillaumegourlaouen.fr 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 guillaumegourlaouen.fr 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): 05:0f:eb:2f:23:81:07:50:3e:24:c3:03:53:83:bb:50:85:44
Serial Number (int): 440978278499684149046848792081828324345156
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: c6:1d:b2:d3:c8:a9:2b:43:94:c6:fc:78:a2:43:0c:0f:ef:00:67:9d
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): ae:3e:22:69:59:90:c5:39:a7:aa:bc:66:c4:15:3f:ee:17:3a:4a:78
Fingerprint (SHA-256): 0e:de:ca:83:97:ea:84:02:eb:e7:c1:14:7d:44:b9:e5:fe:23:24:e0:a9:c2:06:4d:ba:ac:0e:16:b1:98:52:9f

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/69.crl

Check the revocation status for certificate guillaumegourlaouen.fr
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for guillaumegourlaouen.fr

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 guillaumegourlaouen.fr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqMBSjvVttkQckfRF4z81
F7iVHi85EfcjJ0TRUMgnNUXITCuH/D8WtqKozFo02gMSaig3Wwcu04E7cwGHUgd4
YB+4CmAtMJmf1U2mW41Zeh9NwkTQ3owYAcaDRn7MKsWWQfJA6aPiM+KBNiaJnQYM
3uJlXtyJfTtBfCH2Iv069Z0E1uHF7YTKq8MEdmoioB8huS/8SHfxCE1FJr0tTJ3t
fGQiUS/pUGG9k99c9eb3RuCt4Ykjx7RK9BPkYjQ+zoynvotTvHZusuEDn86QHHHV
UJyZ8NFNfGQpNFRg09EdSRVgTxvocHLYyI3jYyOx1Wy53DIJ0RS3+fnS4B1JpwiR
KwIDAQAB
-----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 440978278499684149046848792081828324345156
 . . . . . . . . [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 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-07-08 01:02:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-06 01:02:35 +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 'guillaumegourlaouen.fr'
 . . . . . . . . [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 21302872990680049623432916884820926021618758530057871608389520229294188686635063326480252141125575234362421012127692578106459830450215641873181467752327617112350119318299403054965208295338838668184658397301188862481390211028713764771776373957880018712736268284714954237787497662528845340638602909672844073059219717035131284118356775545416323797635489670073946794563497801605946031456568405849131433423292597023640368050305386485171904432815289958043269889571486475097498044941610498956994960979344836300242181305093611141068867502695380988440689468068972521227218954996384089077823424586747570670743422084347182223659
 . . . . . . . . . . . . . . . . . . . . [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)
							c61db2d3c8a92b4394c6fc78a2430c0fef00679d
 . . . . . . . . . . . . . . . . [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 bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [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://r10.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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'guillaumegourlaouen.fr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.guillaumegourlaouen.fr'
 . . . . . . . . . . . . . . . . [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://r10.c.lencr.org/69.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)
							00f0007500ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000197e7c3ec3d0000040300463044022074baa0ebc97bfc49795d935ebcfb6a5cf94369f2017f24e8138a943532bc287c022032358f1c818848a992dc21f706b17c808d627b32f49e087aea6c91f36475b04f0077007d591e12e1782a7b1c61677c5efdf8d0875c14a04e959eb9032fd90e8c2e79b800000197e7c3f3ff0000040300483046022100adb47310255d965722037620efc51e6b51e86b5a95ac43050867108c80e0bc87022100fcab01d96de219e9d679190ef36d7baa84e142572b156da8fd2407d2a0c292ad
 . . . . [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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