sekost.fr

Issued by R3

About this certificate

This digital certificate with serial number 04:28:0d:e8:21:2e:11:0d:69:e1:7a:a5:3f:91:2b:c1:26:b5 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=sekost.fr

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:28:0d:e8:21:2e:11:0d:69:e1:7a:a5:3f:91:2b:c1:26:b5
Serial Number (int): 362078923653664198968759887907877225047733
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a4:6b:b4:09:26:a3:4c:a4:ad:c1:7a:19:f8:f0:ab:c9:26:63:87:0f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b0:b9:bc:a2:4f:a0:16:76:11:55:c6:7e:6a:ec:57:d7:85:54:88:37
Fingerprint (sha256): 6b:81:ce:65:1b:ac:76:77:90:8b:c4:5c:04:e0:1a:f8:c8:cf:59:06:40:b7:a0:0b:b3:ec:e1:83:c4:a7:0f:67

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

Revocation information

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

Check the revocation status for certificate sekost.fr

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for sekost.fr

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

sekost.fr
www.sekost.fr

Other certificates including the domain name sekost.fr

(limited to 100 certificates)
sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
form.sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
sekost.fr
alertmanager.corp.sekost.fr
grafana.corp.sekost.fr
sekost.fr

Certificate

The complete raw certificate details for sekost.fr in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE7jCCA9agAwIBAgISBCgN6CEuEQ1p4XqlP5ErwSa1MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA2MDUxNzMzMDBaFw0yNDA5MDMxNzMyNTlaMBQxEjAQBgNVBAMT
CXNla29zdC5mcjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANVAkCTc
+h/6UrwJYDY98HFoebNa6pUKFCUiwaPqq1BuNqcuphfk71OvurLdrP6LrhKVi2Nt
+m/+icR5hF5rHFHeijMb9knaVy6gi6RqqHGk3X9UxkosIzallIvqQBsE1Nsxgo5g
TPgcxECdulXbj/HFCDsNqmrHL2beXX3TFc74Pcv4f34RIq/qPeJERwnIgY4os46R
Vz3Pzyr2RAn31MhqamxD3suFAjJkIcMsP5XyjwzqK6iePYWcDxWqgd6mZMcdBSMV
ex7Q+eyBiL3IGX2osMhoYqkngKEYjpIq8QjS8ROaafJ0faaVKttsH+5X9a03AaAe
JPRr55L1QVXLk2cCAwEAAaOCAhowggIWMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE
FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU
pGu0CSajTKStwXoZ+PCrySZjhw8wHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+v
nYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5s
ZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wIwYD
VR0RBBwwGoIJc2Vrb3N0LmZygg13d3cuc2Vrb3N0LmZyMBMGA1UdIAQMMAowCAYG
Z4EMAQIBMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYASLDja9qmRzQP5WoC+p0w
6xxSActW3SyB2bu/qznYhHMAAAGP6a0DlgAABAMARzBFAiAZmgQRlzvmVzGRSEHa
lxp0xh2PPIE6opwfAOFMhFEjgwIhAPcT2ior7p5eItWU8V/0ZDAK8m464p72rmdt
+egD+71bAHYA7s3QZNXbGs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGP6a0D
hwAABAMARzBFAiEAt/C+aEXMDPWXDv+OoGViT96CC0vv7NsnDl7gP7BaCsACIAQN
meiVPMWE3V0DfRCpiOIS0kOdbpiduLCAfnu2Hsq8MA0GCSqGSIb3DQEBCwUAA4IB
AQCYW2kuhRO7TUnmLuCtLfSe/np7CQO1NZ6I1c2l579eG4LiVs/YfLwFIkWrXvUF
oAWj4xS1+pWsVUwHMniJqVP5VvkLY1IVEM3r96sDNXAK4ZURU3I0Z3YTXB0d9NPG
5PrAsfuZKL1Gv6gUDn8SqBwA7hsumocRVNvDXNGysMgkOQwQr1GtYDp9bQcHY0zy
3EFdE7+fr8SQWzWTIk5FppdadR71K4G0HfLaIYlRJwMNZgxWNdlVNT5Cc1mp+IsA
y4aJAUZe3upJsiVQWjBH80xW9G7WGs/g7QHvbuSaBpS8TGNU3vZkqtd6ysTvHZTU
CDrYmVHS7xbm9XKr1s51c6+J
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1UCQJNz6H/pSvAlgNj3w
cWh5s1rqlQoUJSLBo+qrUG42py6mF+TvU6+6st2s/ouuEpWLY236b/6JxHmEXmsc
Ud6KMxv2SdpXLqCLpGqocaTdf1TGSiwjNqWUi+pAGwTU2zGCjmBM+BzEQJ26VduP
8cUIOw2qascvZt5dfdMVzvg9y/h/fhEir+o94kRHCciBjiizjpFXPc/PKvZECffU
yGpqbEPey4UCMmQhwyw/lfKPDOorqJ49hZwPFaqB3qZkxx0FIxV7HtD57IGIvcgZ
faiwyGhiqSeAoRiOkirxCNLxE5pp8nR9ppUq22wf7lf1rTcBoB4k9GvnkvVBVcuT
ZwIDAQAB
-----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 362078923653664198968759887907877225047733
 . . . . . . . . [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 2024-06-05 17:33:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-09-03 17:32:59 +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 'sekost.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 (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 26920596190473066754774117642526675644678664169227073118600318881458599838477883403628444528824349155286216434989374412263941315117589862605121520076029967506127610032594607147668716066442461308217496264797617970470479469607627712142815721308936913529446328227226618669067425255548956299236225816524635471822546083448761219571788821690969592740808835519747153792091471117380520988431545200366871280902855228439680081305802128606275291736398419542782756879987593125958527442237630969820728753324440544508412927368869896987238297910216887477875598391949217417687658696869701952050214486945000438906815929363740274430823
 . . . . . . . . . . . . . . . . . . . . [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)
							a46bb40926a34ca4adc17a19f8f0abc92663870f
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sekost.fr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sekost.fr'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018fe9ad039600000403004730450220199a0411973be65731914841da971a74c61d8f3c813aa29c1f00e14c84512383022100f713da2a2bee9e5e22d594f15ff464300af26e3ae29ef6ae676df9e803fbbd5b007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018fe9ad03870000040300473045022100b7f0be6845cc0cf5970eff8ea065624fde820b4befecdb270e5ee03fb05a0ac00220040d99e8953cc584dd5d037d10a988e212d2439d6e989db8b0807e7bb61ecabc
 . . . . [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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